STOCK COMPENSATION PLAN (Details) - USD ($)
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3 Months Ended |
12 Months Ended |
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May 18, 2019 |
Jan. 01, 2019 |
Jun. 30, 2021 |
Mar. 31, 2021 |
Dec. 31, 2020 |
Mar. 31, 2020 |
Mar. 31, 2018 |
Dec. 31, 2021 |
Dec. 31, 2020 |
May 28, 2019 |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Outstanding shares |
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231,000
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231,000
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231,000
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| Exercise of stock options (in shares) |
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0
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| Restricted stock awards |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Unrecognized compensation cost related to non-vested stock options |
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$ 3,300,000
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| Compensation cost related to stock awards |
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$ 2,400,000
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$ 1,500,000
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| Number of shares, Granted |
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1,785
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60,307
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78,582
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62,092
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| Remaining unrecognized compensation expense recognition period |
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2 years 1 month 24 days
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| Fair value of shares vested |
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$ 2,000,000.0
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$ 2,100,000
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| Restricted stock awards | Key Personnel |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Number of shares, Granted |
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78,582
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| Vesting period |
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3 years
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| Restricted stock awards | Non-employee directors |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Unrecognized compensation cost related to non-vested stock options |
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$ 0
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| Compensation cost related to stock awards |
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$ 410,000
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400,000
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| Number of shares, Granted |
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38,900
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| Vesting percentage |
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33.00%
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| Service period (in years) |
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3 years
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| Vesting period |
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3 years
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| Performance-Based Restricted Stock Units (PRSUs) |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Performance period (in years) |
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3 years
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| Vesting period |
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3 years
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3 years
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| Number of PRSUs awarded |
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90,000
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90,000
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90,000
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| Weighted average service inception date fair value of award share in amount |
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$ 5,700,000
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| Fair value of shares vested |
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$ 30,000
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| Equity Incentive Plan 2019 |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Share-based payment award, shares authorized, maximum |
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340,000
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| Compensation cost related to stock awards |
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0
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0
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| Equity Incentive Plan 2019 | Stock Option |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Unrecognized compensation cost related to non-vested stock options |
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$ 0
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$ 0
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$ 0
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| Equity Incentive Plan 2019 | Stock Option | Minimum |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Percentage of exercise price to the fair market value |
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100.00%
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| Equity Incentive Plan 2019 | Equity Incentive Plan | Maximum |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Share-based payment award, exercise period from the grant date |
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10 years
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| Equity Incentive Plan 2019 | Incentive stock options | Maximum |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Share-based payment award, exercise period from the grant date |
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5 years
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| Equity Incentive Plan 2019 | Incentive stock options granted to any 10% stockholder | Minimum |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Percentage of the exercise price to the fair market value of the shares covered by the stock option on the date of grant in the case of an ISO granted to 10% stockholder |
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110.00%
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| Equity Incentive Plan 2019 | Performance-Based Restricted Stock Units (PRSUs) |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Compensation expense recognized |
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$ 1,900,000
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| Equity Incentive Plan 2009 |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Outstanding shares |
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468,382
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| Number of shares expired |
628,719
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| Equity Incentive Plan 2009 | Performance-Based Restricted Stock Units (PRSUs) |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Compensation expense recognized |
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$ 1,400,000
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