Note 4 - Long-term Debt - Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Long-term debt	$ 204,515	$ 198,589
Less current maturities	(284)	(280)
Deferred financing fees, net	(5,434)	(5,871)
Total long-term debt, net of deferred financing fees	199,081	192,718
Line of Credit [Member] | First Lien Credit Facility [Member]
Long-term debt	101,778	95,778
Line of Credit [Member] | Second Lien Credit Facility [Member]
Long-term debt	100,000	100,000
Mortgages [Member]
Long-term debt	$ 3,021	$ 3,091