Share Capital - Additional Information (Detail)
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1 Months Ended |
3 Months Ended |
12 Months Ended |
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Jan. 03, 2020
USD ($)
$ / shares
shares
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Aug. 10, 2018
USD ($)
$ / shares
shares
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Aug. 10, 2018
CAD ($)
shares
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May 10, 2018
USD ($)
$ / shares
shares
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May 10, 2018
CAD ($)
shares
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Apr. 10, 2018
USD ($)
$ / shares
shares
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Apr. 10, 2018
CAD ($)
shares
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Mar. 27, 2020
USD ($)
$ / shares
shares
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Mar. 27, 2020
CAD ($)
shares
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Jan. 28, 2020
shares
$ / shares
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Dec. 23, 2019
USD ($)
shares
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Aug. 29, 2019
USD ($)
$ / shares
shares
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Aug. 29, 2019
CAD ($)
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May 29, 2019
USD ($)
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May 28, 2019 |
Mar. 21, 2019
USD ($)
$ / shares
shares
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Mar. 21, 2019
CAD ($)
shares
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Jun. 19, 2018
shares
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Mar. 31, 2020
USD ($)
shares
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Mar. 31, 2020
CAD ($)
shares
$ / shares
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Mar. 31, 2019
USD ($)
shares
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Dec. 31, 2019
USD ($)
shares
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Dec. 31, 2019
CAD ($)
shares
$ / shares
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Dec. 31, 2018
USD ($)
shares
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Mar. 31, 2020
$ / shares
shares
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Dec. 31, 2019
$ / shares
shares
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Dec. 31, 2018
$ / shares
shares
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Dec. 31, 2018
$ / shares
shares
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Dec. 31, 2017
$ / shares
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Shares issued |
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Shares issued | shares |
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54,216,877
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39,907,681
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54,216,877
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39,907,681
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Number of shares outstanding | shares |
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419,888,250
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54,216,877
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39,907,681
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54,216,877
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39,907,681
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21,675,849
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21,675,849
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Number of shares outstanding, adjusted | shares |
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13,996,275
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Reverse stock split ratio |
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30
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Effective date of reverse stock split |
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Jun. 20, 2018
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Offering price per share | $ / shares |
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$ 3.40
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Amount allocated to common shares |
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$ 1,011,120
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$ 7,002,043
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$ 7,002,043
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$ 59,998
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Warrant exercised | shares |
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2,400,000
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1,018,506
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2,400,000
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1,018,506
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6,500
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6,500
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Proceeds from warrant exercised |
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$ 38,000
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Number of common shares available for issue under stock option plan | shares |
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6,859,600
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6,859,600
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5,986,152
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5,986,152
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1,241,803
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Weighted average exercise price of options exercisable | $ / shares |
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$ 7.35
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Stock based compensation |
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$ 228,576
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251,357
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$ 1,651,119
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$ 1,505,625
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Contractual Life |
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5 years 3 months 25 days
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5 years 3 months 25 days
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Stock issuance costs |
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$ 214,263
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$ 1,495,501
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$ 2,090,124
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$ 1,297,668
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Director [Member] |
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Shares issued |
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Options issued | shares |
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25,765
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Exercise prices/option | $ / shares |
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$ 0.657
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Contractual Life |
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7 years
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US Dollar [Member] |
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Shares issued |
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Weighted average exercise price of options outstanding | $ / shares |
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$ 3.19
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$ 2.65
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$ 1.55
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Weighted average exercise price of options exercisable | $ / shares |
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$ 3.02
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Options issued | shares |
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[1] |
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[1] |
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843,693
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843,693
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50,349
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Contractual Life |
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4 years 3 months 26 days
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4 years 3 months 26 days
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6 years 3 months 10 days
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6 years 3 months 10 days
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Canadian Dollar [Member] |
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Shares issued |
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Weighted average exercise price of options outstanding | $ / shares |
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$ 5.74
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$ 5.89
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$ 18.20
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$ 21.30
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Weighted average exercise price of options exercisable | $ / shares |
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$ 6.61
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Options issued | shares |
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25,765
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[1] |
25,765
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[1] |
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35,719
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35,719
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322,517
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Contractual Life |
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3 years 11 months 15 days
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3 years 11 months 15 days
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4 years 4 months 13 days
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4 years 4 months 13 days
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Warrants expiring between April 10, 2020 and March 21, 2021 [Member] |
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Shares issued |
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Broker Warrants issued and outstanding | shares |
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1,219,276
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1,219,276
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Warrants expiring between March 16, 2019 and August 10, 2020 [Member] |
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Shares issued |
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Broker Warrants issued and outstanding | shares |
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786,183
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786,183
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Warrants expiring between April 10, 2020 and March 27, 2025 [Member] |
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Shares issued |
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Broker Warrants issued and outstanding | shares |
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1,709,276
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1,219,276
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1,709,276
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1,219,276
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Aspire Agreement [Member] |
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Shares issued |
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Gross proceeds from offerings |
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$ 3,000,000
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$ 3,000,000
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Stock issuance costs |
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$ 417,113
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$ 417,113
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Before Amendment [Member] |
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Shares issued |
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Percentage of common shares reserved for issuance |
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10.00%
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After Amendment [Member] |
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Shares issued |
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Percentage of common shares reserved for issuance |
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15.00%
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15.00%
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15.00%
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Amendment [Member] |
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Shares issued |
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Stock based compensation |
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292,184
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Incremental stock based compensation |
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$ 475,622
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Over Allotment Option 1 [member] |
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Shares issued |
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Warrant exercised | shares |
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1,018,506
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Proceeds from warrant exercised |
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$ 3,259,219
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Amount reclassed from warrant liability to common stock |
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$ 3,742,824
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Bloom Burton Securities Inc [member] |
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Shares issued |
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Sale of offering units | shares |
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7,679,574
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7,679,574
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1,126,664
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1,126,664
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8,455,882
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8,455,882
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Offering price per share | $ / shares |
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$ 2.50
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$ 9.00
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$ 9.00
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$ 3.40
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Gross proceeds from offerings |
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$ 19,198,935
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$ 8,035,941
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$ 28,750,000
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Cash commissions |
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$ 1,343,925
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$ 76,988
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$ 562,516
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$ 2,012,500
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Net proceeds from offering |
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$ 17,464,711
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$ 7,211,320
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|
|
|
|
|
$ 25,426,744
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Exercise price per share | $ / shares |
|
$ 3.20
|
|
$ 10.50
|
|
$ 10.50
|
|
|
|
|
|
|
|
|
|
$ 4.00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Fair value of warrants |
|
$ 6,297,251
|
|
$ 658,387
|
|
$ 4,553,700
|
|
|
|
|
|
|
|
|
|
$ 15,897,059
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Amount allocated to common shares |
|
$ 12,901,684
|
|
$ 531,469
|
|
$ 3,482,241
|
|
|
|
|
|
|
|
|
|
$ 12,852,941
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Warrants expiration period |
|
Aug. 10, 2023
|
Aug. 10, 2023
|
Apr. 10, 2023
|
Apr. 10, 2023
|
Apr. 10, 2023
|
Apr. 10, 2023
|
|
|
|
|
|
|
|
|
Mar. 21, 2024
|
Mar. 21, 2024
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Sale of offering additional units | shares |
|
|
|
168,888
|
168,888
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Gross proceeds from additional offerings |
|
|
|
$ 1,189,856
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Net proceeds from additional offering |
|
|
|
$ 1,100,238
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Bloom Burton Securities Inc [member] | Over Allotment Option 1 [member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares issued |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Fair value of warrants |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 864,190
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Warrants expiration period |
|
Aug. 10, 2020
|
Aug. 10, 2020
|
Apr. 10, 2020
|
Apr. 10, 2020
|
Apr. 10, 2020
|
Apr. 10, 2020
|
|
|
|
|
|
|
|
|
Mar. 21, 2021
|
Mar. 21, 2021
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Broker warrants to purchase common stock | shares |
|
537,570
|
537,570
|
10,928
|
10,928
|
78,867
|
78,867
|
|
|
|
|
|
|
|
|
591,911
|
591,911
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Common stock price per share | $ / shares |
|
$ 2.50
|
|
$ 9.00
|
|
$ 9.00
|
|
|
|
|
|
|
|
|
|
$ 3.40
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Aspire Capital Fund LLC [Member] | Aspire Agreement [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares issued |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares issued | shares |
|
|
|
|
|
|
|
|
|
|
973,000
|
1,777,325
|
|
|
|
|
|
|
|
|
7,784,444
|
|
|
|
7,784,444
|
|
7,784,444
|
7,784,444
|
|
|
|
Offering price per share | $ / shares |
|
|
|
|
|
|
|
|
|
|
|
$ 1.6879
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Gross proceeds from offerings |
|
|
|
|
|
|
|
|
|
|
|
$ 3,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Capital Issued Commitments |
|
|
|
|
|
|
|
|
|
|
$ 35,000,000
|
$ 35,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Percentage Of Shares Outstanding |
|
|
|
|
|
|
|
|
|
|
|
5.30%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Common stock shares issued value |
|
|
|
|
|
|
|
|
|
|
423,440
|
|
|
|
|
|
|
|
$ 5,304,531
|
|
|
|
|
$ 5,304,531
|
|
|
|
|
|
|
|
Stock issuance costs |
|
|
|
|
|
|
|
|
|
|
$ 35,122
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Aspire Capital Fund LLC [Member] | Aspire Agreement [Member] | Additional Commitment [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares issued |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares issued | shares |
|
|
|
|
|
|
|
|
|
|
|
639,837
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Percentage Of Shares Outstanding |
|
|
|
|
|
|
|
|
|
|
|
1.90%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Northland Securities Inc [Member] | Aspire Agreement [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares issued |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cash commissions |
|
|
|
|
|
|
|
|
|
|
|
|
$ 160,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
H.C.Wainwright and Co. LLC [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares issued |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Sale of offering units | shares |
|
|
|
|
|
|
|
7,000,000
|
7,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Offering price per share | $ / shares |
|
|
|
|
|
|
|
$ 0.17
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Gross proceeds from offerings |
|
|
|
|
|
|
|
$ 1,190,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cash commissions |
|
|
|
|
|
|
|
|
$ 862,294
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Exercise price per share | $ / shares |
|
|
|
|
|
|
|
$ 0.19
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Fair value of warrants |
|
|
|
|
|
|
|
$ 475,300
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Amount allocated to common shares |
|
|
|
|
|
|
|
$ 714,700
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Warrants to purchase of common stock | shares |
|
|
|
|
|
|
|
3,500,000
|
3,500,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
H.C.Wainwright and Co. LLC [Member] | Over Allotment Option 1 [member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares issued |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cash commissions |
|
|
|
|
|
|
|
|
$ 83,300
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Fair value of warrants |
|
|
|
|
|
|
|
$ 65,600
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Warrants expiration period |
|
|
|
|
|
|
|
Mar. 27, 2025
|
Mar. 27, 2025
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Broker warrants to purchase common stock | shares |
|
|
|
|
|
|
|
490,000
|
490,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Common stock price per share | $ / shares |
|
|
|
|
|
|
|
$ 0.2125
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cambridge Design Partnership Ltd [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares issued |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares issued | shares |
501,148
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Offering price per share | $ / shares |
$ 0.50
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Common stock shares issued value |
$ 250,574
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|