Note 10 - Long-term Debt (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

Schedule of Debt [Table Text Block]

	December 31, 2018		December 31, 2017
Revolving Credit Facility	$	430,167	$	246,411
Senior Notes		239,577		-
Capital leases maturing at various dates through 2021		1,470		1,991
Other long-term debt maturing at various dates up to 2021		910		1,491
		672,123		249,893
Less: current portion		1,834		2,426
Long-term debt - non-current	$	670,289	$	247,467

Schedule of Maturities of Long-term Debt [Table Text Block]

2019	$	1,834
2020		348
2021		198
2022		-
2023 and thereafter		669,743