Note 4 - Long-Term Debt and Interest Expense (Details) - Schedule of Interest Expense - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Schedule of Interest Expense [Abstract]
Current debt, long-term debt and other - banks			$ 3,615	$ 1,248
Long-term debt – related parties	$ 0	$ 0	0	2,878
	$ 1,235	$ 1,160	$ 3,615	$ 4,126