Note 4 - Financing Arrangements - Long-term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Long-term debt gross	$ 7,265	$ 3,755
Debt issuance Costs	(91)	(132)
Total long-term debt	7,174	3,623
Current maturities of long-term debt	(444)	(444)	[1]
Long-term debt - net of current maturities	6,730	3,179
Paycheck Protection Program CARES Act [Member]
Long-term debt gross	6,077
Real Estate Term Note [Member]
Long-term debt gross	$ 1,188	$ 3,755

[1] The balance sheet at December 31, 2019 has been derived from the audited financial statements at that date