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LONG-TERM DEBT (Schedule of Debt) (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
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Debt Instrument [Line Items] |  |
Total long-term debt | $ 147 | $ 389
Current portion of long-term debt | (27) | (255)
Long-term debt, net of current maturities | 120 | 134
Connecticut Department of Economic and Community Development (DECD) |  |
Debt Instrument [Line Items] |  |
Total long-term debt | 161 | 176
Debt issuance cost | (14) | (15)
Financed Insurance Loan [Member] |  |
Debt Instrument [Line Items] |  |
Total long-term debt |  | 228
Current portion of long-term debt | $ 0 | $ (200)

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