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STOCK-BASED COMPENSATION PLANS (Tables) | 6 Months Ended
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Jun. 30, 2022
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 |  | 213 | ​ | 213
Equity compensation plans not approved by shareholders |  | — | ​ | —
2017 Stock Option Plan |  | 603 | ​ | 344
Total |  | 816 | ​ | 557
Schedule of share based compensation expenses recorded in the consolidated statement of income | The following summarizes stock-based compensation expenses recorded in the condensed consolidated statements of income (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Three Months Ended June 30, |  | For the Six Months Ended June 30,
​ |  | 2022 |  | 2021 |  | 2022 |  | 2021
Cost of Revenue | ​ | $ | 12 | ​ | $ | 15 | ​ | $ | 27 | ​ | $ | 30
Sales and marketing expense | ​ |  | 55 | ​ |  | 15 | ​ |  | 114 | ​ |  | 30
General, and administrative | ​ | ​ | 468 | ​ | ​ | 371 | ​ | ​ | 983 | ​ | ​ | 449
Total stock based compensation expense | ​ | $ | 535 | ​ | $ | 401 | ​ | $ | 1,124 | ​ | $ | 509
Summary of fair value of stock options grants | ​
​ | ​ | ​ | ​
Expected term (years) |  | 3.00 | ​
Risk-free interest rate |  | 2.81 | %
Expected volatility |  | 73.28 | %
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, 2022, 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, 2021 |  | 765 | ​ | $ | 1.36 | ​ | 4.68 | ​ | $ | 5,896
Granted |  | 200 | ​ | $ | 6.23 | ​ | ​ | ​ |  | ​
Forfeited |  | (2) | ​ | $ | 3.21 | ​ | ​ | ​ |  | ​
Exercised | ​ | (147) | ​ | $ | 0.50 | ​ | ​ | ​ | ​ | ​
Outstanding at June 30, 2022 |  | 816 | ​ | $ | 2.70 | ​ | 5.59 | ​ | $ | 4,318
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Exercisable at June 30, 2022 |  | 557 | ​ | $ | 1.27 | ​ | 3.95 | ​ | $ | 3,743
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 six months ended June 30, 2022, is presented below: ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Number of | ​ | Weighted
​ | ​ | Shares |  | Average Grant
​ |  | (in thousands) | ​ | Date Fair Value
Granted but not vested at December 31, 2021 |  | 454 | ​ | $ | 13.69
Granted |  | 93 | ​ | $ | 6.66
Forfeited |  | (11) | ​ | $ | 6.07
Vested |  | (70) | ​ | $ | 14.32
Granted but not vested at June 30, 2022 |  | 466 | ​ | ​ | 12.22

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + 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 (d) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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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 https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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