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STOCK-BASED COMPENSATION PLANS (Tables) | 6 Months Ended
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Jun. 30, 2020
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 |  | 384 |  | ​ | 384
Equity Compensation Plans not approved by Shareholders |  | 60 |  | ​ | 45
2017 Stock Option Plan |  | 709 |  | ​ | 164
Total |  | 1,153 | ​ | $ | 593
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 June 30, | ​ | For the Six Months Ended June 30,
​ |  | 2020 |  | 2019 |  | 2020 |  | 2019
Cost of Revenue | ​ | $ | 2 | ​ | $ | 5 | ​ | $ | 9 | ​ | $ | 10
Sales and marketing expense | ​ |  | 98 | ​ |  | 52 | ​ |  | 127 | ​ |  | 94
General, and administrative | ​ |  | 479 | ​ |  | 101 | ​ |  | 940 | ​ |  | 194
Total stock based compensation expense | ​ | ​ | 579 | ​ | ​ | 158 | ​ | ​ | 1,076 | ​ | ​ | 298
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 and six months ended June 30, 2020 and June 30, 2019. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Three Months |  | For the Six Months |
​ | ​ | Ended June 30, |  | Ended June 30, |
​ |  | 2020 | ​ | 2019 |  | 2020 | ​ | 2019 |
Expected term (years) | ​ | — | ​ | 6.25 | ​ | 6.79 | ​ | 6.25 | ​
Risk-free interest rate | ​ | — | % | 2.49 | % | 1.59 | % | 2.59 | %
Expected volatility | ​ | — | % | 121.49 | % | 116.76 | % | 121.95 | %
Expected dividend yield | ​ | — | % | — | % | — | % | — | %
Summary of Stock Option Activity Under the Option Plan | A summary of stock option activity under all equity compensation plans for the six months ended June 30, 2020, is presented below: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted- | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Average | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted- | ​ | Remaining | ​ | Aggregate
​ | ​ | Number of | ​ | Average | ​ | Contractual | ​ | Intrinsic
​ | ​ | Shares | ​ | Exercise | ​ | Term | ​ | Value
​ |  | (in thousands) |  | Price |  | (Years) |  | (in thousands)
Outstanding at December 31, 2019 | ​ | 1,855 | ​ | $ | 2.48 | ​ | 6.42 | ​ | $ | 10,032
Granted | ​ | 14 | ​ | $ | 10.15 | ​ | — | ​ |  | —
Expired | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | —
Forfeited | ​ | (206) | ​ | $ | 5.10 | ​ | — | ​ |  | —
Exercised | ​ | (510) | ​ | $ | 0.99 | ​ | — | ​ |  | —
Outstanding at June 30, 2020 | ​ | 1,153 | ​ | $ | 2.77 | ​ | 6.79 | ​ | $ | 25,497
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Exercisable at June 30, 2020 | ​ | 593 | ​ | $ | 0.70 | ​ | 5.30 | ​ | $ | 14,341
Restricted Stock Award Activity Under all Equity Compensation Plans | A summary of restricted stock award activity under all equity compensation plans for the six months ended June 30, 2020, is presented below: ​
​ | ​ | ​
​ | ​ | Number of
​ | ​ | Shares
​ |  | (in thousands)
Granted but not vested at December 31, 2019 | ​ | 102
Granted | ​ | 208
Forfeited | ​ | —
Vested | ​ | (49)
Granted but not vested at June 30, 2020 | ​ | 261

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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=116856206&loc=d3e5070-113901 + Details
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