Note 2 - Notes Payable - Summary of Notes Payable (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Subordinated Debt [Member]
Long-term debt	$ 15,300
Payment in kind interest - subordinated debt	194
Less: Long-term portion of debt issuance cost	(793)
Long-term notes payable, net of debt issuance cost	14,701
Previous Credit Facility [Member]
Long-term debt			99,255
Less: Current portion of long-term debt, net of debt issuance cost of $0 and $797, respectively			(2,203)
Long-term notes payable less current maturities (net)			97,052
Long-term debt	98,300
Less: Current portion of long-term debt, net of debt issuance cost of $0 and $797, respectively	(2,929)		(2,203)
Long-term notes payable less current maturities (net)	90,609		$ 97,052
Payment in kind interest - subordinated debt	$ 194