Commitments - Additional Information (Detail) - USD ($) |
Jun. 30, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Commitments [line items] | ||
| Purchase orders remain outstanding | $ 25,742,371 | $ 12,756,962 |
| Deposits | $ 8,864,346 | $ 8,541,630 |
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- Definition The amount of short-term deposits held by the entity that are not classified as cash equivalents. [Refer: Cash equivalents] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Line items representing commitments. No definition available.
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| X | ||||||||||
- Definition Purchase commitment remaining. No definition available.
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