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LONG-TERM DEBT (Narrative) (Details) - USD ($) |  | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Jan. 08, 2018 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Jul. 31, 2023 | Dec. 31, 2022 | Jul. 31, 2022
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Current maturities of long-term debt, less debt issuance costs |  | $ 334,000 |  | $ 334,000 |  |  | $ 255,000 |
Connecticut Department of Economic and Community Development (DECD) |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt instrument, term | 10 years |  |  |  |  |  |  |
Debt instrument, maturity date | Dec. 31, 2027 |  |  | May 31, 2028 |  |  |  |
Interest rate (as a percent) | 3.25% |  |  |  |  |  |  |
Financed Insurance Loan [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Current maturities of long-term debt, less debt issuance costs |  | 300,000 |  | $ 300,000 |  |  | $ 200,000 |
Interest rate (as a percent) |  |  |  |  |  | 9.99% |  | 5.99%
Debt instrument, face amount |  |  |  |  |  | $ 400,000 |  | $ 400,000
Term loan | Connecticut Department of Economic and Community Development (DECD) |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Proceeds from long-term debt | $ 300,000 |  |  |  |  |  |  |
Amortization of debt issuance cost |  |  |  | $ 2,000 | $ 3,000 |  |  |
Term loan | Connecticut Department of Economic and Community Development (DECD) | Maximum [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Amortization of debt issuance cost |  | $ 1,000 | $ 1,000 |  |  |  |  |

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