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Note 4 - Financing Arrangements - Long-term Debt (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Real estate term notes bearing interest at one-month LIBOR + 2.25% (3.3% and 4.1% as of March 31, 2020 and December 31, 2019, respectively) maturing June 15, 2022 with monthly payments of approximately $41 plus interest secured by substantially all assets. $ 3,631 $ 3,755
Debt issuance Costs (118) (132)
Total long-term debt 3,513 3,623
Current maturities of long-term debt (444) (444) [1]
Long-term debt - net of current maturities 3,069 3,179
Real Estate Term Note [Member]    
Real estate term notes bearing interest at one-month LIBOR + 2.25% (3.3% and 4.1% as of March 31, 2020 and December 31, 2019, respectively) maturing June 15, 2022 with monthly payments of approximately $41 plus interest secured by substantially all assets. $ 3,631 $ 3,755
[1] The balance sheet at December 31, 2019 has been derived from the audited financial statements at that date