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STOCKHOLDERS' EQUITY - Additional Information (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jan. 31, 2020 | Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
Class of Stock [Line Items] |  |  |  |
Common Stock, Shares, Issued |  | 8,877,000 |  | 8,877,000
Common Stock, Shares, Outstanding |  | 8,877,000 |  | 8,877,000
Allocated Share-based Compensation Expense |  | $ 85,000 |  | $ 72,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options |  | $ 0 |  |
Common Stock Dividends, Shares |  | 58,912 |  | 55,927
Preferred stock unpaid dividend equivalent common stock, Shares |  | 258,000 |  | 245,000
Preferred Stock, Liquidation Preference, Value |  | $ 1,308,000 |  | $ 1,295,000
Preferred Stock, Liquidation Preference Per Share |  | $ 10 |  |
Employee Stock Option |  |  |  |
Class of Stock [Line Items] |  |  |  |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options |  | $ 700,000 |  |
Warrant |  |  |  |
Class of Stock [Line Items] |  |  |  |
Allocated Share-based Compensation Expense |  | 0 | $ 0 |
Restricted Stock Units (RSUs) |  |  |  |
Class of Stock [Line Items] |  |  |  |
Allocated Share-based Compensation Expense |  | 170,000 | $ 377,000 |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options |  | $ 591,000 |  |
Black-Scholes value on the grant date of the options | $ 80,000 |  |  |
Restricted Stock Unit Agreement One |  |  |  |
Class of Stock [Line Items] |  |  |  |
Number of options granted | 10,000 |  |  |
Restricted Stock Unit Agreement Two |  |  |  |
Class of Stock [Line Items] |  |  |  |
Number of options granted | 5,000 |  |  |
Series A Preferred Stock [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Redemption Price (in dollars per share) |  | $ 4.385 |  |
Preferred Stock, Dividend Rate, Percentage |  | 5.00% |  | 5.00%
Common Stock Dividends, Shares |  | 2,985 |  |
Dividends Payable |  | $ 13,000 |  |
Preferred Stock, Shares Issued |  | 105,000 |  | 105,000
Preferred Stock, Shares Outstanding |  | 105,000 |  | 105,000
Preferred Stock Issue Per Share |  | $ 10 |  | $ 10

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