Note 10 - Long-term Obligations (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Schedule of Debt [Table Text Block]

	2019			2018
2019 senior secured credit facility due 2024	$	177,750		$	-
Debt discount		(2,234	)		-
Debt issuance costs		(1,863	)		-
2017 senior secured credit facility due 2023		-			171,750
Debt discount		-			(2,024	)
Debt issuance costs		-			(2,182	)
Finance leases and other long-term obligations		2,729			2,768
Total debt		176,382			170,312
Less current portion		(8,906	)		(2,289	)
Long-term obligations, net of current portion	$	167,476		$	168,023

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

2020	$	8,906
2021		9,067
2022		11,333
2023		15,851
2024		135,122
Thereafter		200
Total maturities	$	180,479

6.25% Convertible Notes Due 2018 [Member]

Notes Tables

Schedule of Interest Components [Table Text Block]

	2018
Coupon interest expense	$	208
Amortization of the debt discount		18
Total included in interest expense	$	226