Note 10 - Debt - Summary of Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Total short term debt	$ 43,369	$ 33,591
Total long term debt	148,726	152,100
Loans Payable [Member]
Total short term debt	14,000	9,800
Total long term debt	112,810	120,462
Capital Lease Obligations [Member]
Total short term debt	1,074	1,816
Total long term debt	199	486
Commercial Loan [Member]
Total long term debt	1,796
Line of Credit [Member]
Total long term debt	33,921	31,152
Working Capital Facilities [Member]
Total short term debt	$ 28,295	$ 21,975