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LONG-TERM DEBT (Schedule of Debt) (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Debt Instrument [Line Items] |  |
Total debt | $ 519 | $ 516
Current portion of long-term debt | (321) | (263)
Long-term debt, net of current maturities | 198 | 253
Department of Economic and Community Development (DECD) |  |
Debt Instrument [Line Items] |  |
Total debt | 249 | 274
Debt issuance cost | (24) | (28)
Financed Insurance Loan [Member] |  |
Debt Instrument [Line Items] |  |
Total debt | 260 | 204
Convertible Debt [Member] |  |
Debt Instrument [Line Items] |  |
Total debt | 142 | 4,377
Current portion of long-term debt | (142) | (4,377)
Long-term debt, net of current maturities |  |
Convertible Debt [Member] | Convertible bridge notes |  |
Debt Instrument [Line Items] |  |
Debt issuance cost | (1,796) | (1,111)
Settlement Agreement [Member] |  |
Debt Instrument [Line Items] |  |
Total debt | $ 34 | $ 66

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