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STOCKHOLDERS' EQUITY, Non-vested Service-based Awards (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2019
Serviced Based Restricted Stock Units [Member] |  |
Share-based Compensation Expense [Abstract] |  |
Stock-based compensation expense | $ 800,000 | $ 900,000
Unrecognized compensation cost period of recognition | 1 year 7 months 6 days |
2022 | $ 784,000 |
2023 | 537,000 |
2024 | 24,000 |
2025 | 5,000 |
Unrecognized Expense | 1,350,000 |
Performance Based Restricted Stock Units [Member] |  |
Share-based Compensation Expense [Abstract] |  |
Stock-based compensation expense | $ 0 |
Restricted Stock and RSU [Member] |  |
Share-based Compensation Expense [Abstract] |  |
Number of shares issued from vesting of restricted stock (in shares) | 114,075 | 128,619

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