Note 6 - Term Debt - Term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Long-term debt, gross	$ 14,396	$ 17,096
Unamortized debt issuance costs	(103)	(138)
Net term debt	14,293	16,958
Senior Notes [Member]
Long-term debt, gross	4,396	7,096
Unamortized debt issuance costs	(3)	(6)
Subordinated Debt [Member]
Long-term debt, gross	10,000	10,000
Unamortized debt issuance costs	$ (100)	$ (132)

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant