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SHAREHOLDERS' EQUITY (Tables) | 3 Months Ended
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Mar. 31, 2021
November 2019 Offering |
Schedule of Black-Scholes pricing model to determine the fair value of warrants | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | November 20, 2019 | ​
Risk-free interest rate | ​ | ​ | ​ | ​ | ​ | 1.55 | %
Dividend yield | ​ | ​ | ​ | ​ | ​ | 0.00 | %
Volatility factor of the expected market price of common stock | ​ | ​ | ​ | ​ | ​ | 60 | %
Weighted-average expected life | ​ | ​ | ​ | ​ | ​ | 5 years | ​
Weighted-average grant date fair value | ​ | ​ | ​ | ​ | $ | 0.52 | ​

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- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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