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LONG-TERM DEBT (Summary of Long-Term Debt) (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Mar. 31, 2021
Long-term debt    
Total long-term debt $ 35 $ 49
Less current maturities (16) (14)
Long-term debt, less current maturities 19 35
Equipment debt obligations    
Long-term debt    
Total long-term debt $ 35 $ 49