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STOCK BASED COMPENSATION, Stock options given to employees, Tabular (Details) - $ / shares | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Number of shares |  |  |  |
Beginning balance | 0 | 53,714 | 0 |
Granted |  | 10,000 | 60,232 |
Vested |  | (10,680) | (6,518) |
Ending balance |  | 53,034 | 53,714 | 0
Weighted average grant-date fair value per share |  |  |  |
Beginning balance (in dollars per share) | $ 0 | $ 1.96 | $ 0 |
Grant-date fair value of options granted | $ 2.48 | 3.82 | 1.96 |
Vested (in dollars per share) |  | 2.51 | 1.96 |
Ending balance (in dollars per share) |  | $ 2.20 | $ 1.96 | $ 0
Employees |  |  |  |
Number of shares |  |  |  |
Beginning balance | 226,249 | 152,147 | 226,249 |
Granted |  | 204,625 | 136,000 | 380,500
Vested |  | (138,303) | (113,477) | (132,251)
Canceled and forfeited |  | (10,250) | (96,625) | (22,000)
Ending balance |  | 208,219 | 152,147 | 226,249
Weighted average grant-date fair value per share |  |  |  |
Beginning balance (in dollars per share) | $ 1.22 | $ 1.31 | $ 1.22 |
Grant-date fair value of options granted |  | 3.82 | 1.42 | $ 1.26
Vested (in dollars per share) |  | 2.02 | 1.33 | 1.37
Canceled and forfeited (in dollars per share) |  | 1.26 | 1.23 | 0.93
Ending balance (in dollars per share) |  | $ 3.30 | $ 1.31 | $ 1.22
Stock options | Employees |  |  |  |
Number of shares |  |  |  |
Granted |  |  | 516,500 | 721,125

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- Definition Gross number of share options (or share units) granted during the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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