Note 4 - Financing Arrangements - Long-term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Long-term debt gross	$ 3,755	$ 4,612
Discount on Devicix Notes Payable		(23)
Debt issuance Costs	(132)	(185)
Total long-term debt	3,623	4,404
Current maturities of long-term debt	(444)	(780)
Long-term debt - net of current maturities	3,179	3,624
Real Estate Term Note [Member]
Long-term debt gross	3,755	4,253
First Unsecured Subordinated Promissory Notes Payable [Member]
Long-term debt gross		156
Second Unsecured Subordinated Promissory Notes Payable [Member]
Long-term debt gross		$ 203

The amount represents discount on notes payable.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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