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Note 9 - Debt and Other Financing Arrangements (Details Textual)
$ in Thousands
3 Months Ended
Mar. 31, 2020
USD ($)
Long-term Debt, Total $ 2,460
Banc of America Leasing and Capital [Member] | Equipment Loan Arrangement [Member] | Line of Credit [Member]  
Debt, Weighted Average Interest Rate 3.70%
Interest Expense, Total $ 25
Debt, Weighted Average Interest Rate 3.60%
Long-term Debt, Total $ 2,500