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STOCK-BASED COMPENSATION PLANS (Tables) | 3 Months Ended
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Mar. 31, 2021
STOCK-BASED COMPENSATION PLANS |
Schedule of outstanding and exercisable number of options | ​
​ | ​ | ​ | ​ | ​ | ​
​ |  | Outstanding |  | Exercisable
​ | ​ | Number of Options | ​ | Number of Options
​ | ​ | (in thousands) | ​ | (in thousands)
Plan Category |  |  |  | ​ |
2005 Stock Option Plan |  | 296 |  | ​ | 296
Equity Compensation Plans not approved by Shareholders |  | 38 |  | ​ | 25
2017 Stock Option Plan |  | 490 |  | ​ | 274
Total |  | 824 | ​ | $ | 595
Summary of fair value of stock options grants | The Company used the Black-Scholes option pricing model to determine the fair value of stock option grants, using the following assumptions for the three months ended March 31, 2021 and March 31, 2020. ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Three Months |
​ | ​ | Ended March 31, |
​ |  | 2021 |  | 2020 |
Expected term (years) | ​ | — | ​ | 6.79 | ​
Risk-free interest rate | ​ | — | % | 1.59 | %
Expected volatility | ​ | — | % | 116.76 | %
Expected dividend yield | ​ | — | % | — | %
Schedule of share based compensation expenses recorded in the consolidated statement of income | The following summarizes stock-based compensation expenses recorded in the consolidated statements of operations: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Three Months Ended March 31, | ​
​ |  | 2021 |  | 2020 | ​
Cost of Revenue | ​ | $ | 15 | ​ | $ | 6 | ​
Sales and marketing expense | ​ |  | 15 | ​ |  | 29 | ​
General, and administrative | ​ | ​ | 78 | ​ | ​ | 462 | ​
Total stock based compensation expense | ​ | $ | 108 | ​ | $ | 497 | ​
Summary of stock option activity under the option plan | A summary of stock option activity under all equity compensation plans for the three months ended March 31, 2021, is presented below: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted- | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted- | ​ | Average | ​ | Aggregate
​ | ​ | Number of | ​ | Average | ​ | Remaining | ​ | Intrinsic
​ | ​ | Shares | ​ | Exercise | ​ | Contractual | ​ | Value
​ |  | (in thousands) |  | Price |  | Term (Years) |  | (in thousands)
Outstanding at December 31, 2020 |  | 1,006 | ​ | $ | 3.04 | ​ | 6.47 | ​ | $ | 10,483
Granted |  | — | ​ | $ | — | ​ | ​ | ​ |  | ​
Forfeited |  | (174) | ​ | $ | 7.65 | ​ | ​ | ​ |  | ​
Exercised | ​ | (8) | ​ | $ | 3.12 | ​ | ​ | ​ | ​ | ​
Outstanding at March 31, 2021 |  | 824 | ​ | $ | 2.07 | ​ | 5.79 | ​ | $ | 10,873
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Exercisable at March 31, 2021 |  | 595 | ​ | $ | 1.73 | ​ | 5.23 | ​ | $ | 8,061
Schedule of restricted stock award activity under all equity compensation plans | A summary of restricted stock award activity under all equity compensation plans for the three months ended March 31, 2021, is presented below: ​
​ | ​ | ​
​ | ​ | Number of
​ | ​ | Shares
​ |  | (in thousands)
Granted but not vested at December 31, 2020 |  | 268
Granted |  | 65
Forfeited |  | (66)
Vested |  | (49)
Granted but not vested at March 31, 2021 |  | 218

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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