SHARE-BASED COMPENSATION (Schedule of Estimated Fair Value of Stock Options Granted) (Details) - $ / shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Disclosure of terms and conditions of share-based payment arrangement [abstract] | |||
| Risk-free interest rate | 0.48% | 0.30% | 1.44% |
| Expected hold period to exercise | 3.4 | 4.0 | 3.5 |
| Expected share price volatility | 157.52% | 149.61% | 97.91% |
| Expected dividend yield | |||
| Weighted average of fair value of options | $ 1.59 | $ 0.89 | $ 1.49 |
| X | ||||||||||
- Definition The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The option life of share options granted. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The percentage of an expected dividend used to calculate the fair value of share options granted. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The weighted average share price used as input to the option pricing model to calculate the fair value of share options granted. [Refer: Option pricing model [member]; Weighted average [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|