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STOCK-BASED COMPENSATION (Details Narrative) - USD ($) | 1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Nov. 30, 2020 | Aug. 31, 2020 | Feb. 28, 2020 | Jan. 31, 2020 | Dec. 31, 2019 | Nov. 30, 2019 | Jun. 30, 2019 | Apr. 30, 2019 | Jan. 31, 2019 | Mar. 31, 2020 | Jun. 30, 2020 | Sep. 30, 2020 | Dec. 31, 2020 | Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-cash compensation expense |  |  |  |  |  |  |  |  |  | $ 347,185 | $ 536,388 | $ 677,489 | $ 711,344 | $ 730,564
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |  |  |  |  |  |  |  |  |  |  |  |  |  | 35,000
Stock exchanged for options exercised |  |  |  |  |  |  |  |  |  |  |  |  |  | 34,478
Performance Equity Plan 2009 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized |  |  |  |  |  |  |  |  |  |  |  |  | 500,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant |  |  |  |  |  |  |  |  |  |  |  |  | 46,230 |
Long Term Incentive Plan 2016 [Member} |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized |  |  |  |  |  |  |  |  |  |  |  |  | 600,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant |  |  |  |  |  |  |  |  |  |  |  |  | 797,993 |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized |  |  |  |  |  |  |  |  |  |  |  |  | 800,000 |
Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock compensation |  |  |  |  |  |  |  |  |  |  |  |  | $ 711,000 | $ 763,000
Grants in period | 5,758 | 2,617 |  | 73,551 | 10,000 |  | 2,725 | 6,677 | 75,353 |  |  |  |  |
Forfeitures in period |  | 66,242 | 10,000 |  |  |  | 6,596 |  |  |  |  |  |  |
Non-cash compensation expense |  |  |  |  |  |  |  |  |  |  |  |  | 532,000 | 498,000
Restricted Stock Units (RSUs) [Member] | Cost of Sales [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-cash compensation expense |  |  |  |  |  |  |  |  |  |  |  |  | 57,000 | 79,000
Restricted Stock Units (RSUs) [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-cash compensation expense |  |  |  |  |  |  |  |  |  |  |  |  | 122,000 | 186,000
Restricted Stock Units (RSUs) [Member] | Employees and Officers [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Grants in period |  | 84,383 |  |  |  |  |  |  |  |  |  |  |  |
Non-cash compensation expense |  |  |  |  |  |  |  |  |  |  |  |  | $ 179,000 | $ 265,000
Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Employee [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Grants in period |  | 9,346 |  |  |  |  |  |  |  |  |  |  |  |
Performance Shares [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Grants in period |  |  |  |  |  |  |  | 94,972 |  |  |  |  |  |
Forfeitures in period |  |  |  |  |  | 38,906 |  |  |  |  |  |  |  | 29,306
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,806

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