Note 9 - Senior Notes, Credit Facility and Capital Leases (Tables)

6 Months Ended

Jun. 30, 2017

Notes Tables

Schedule of Line of Credit Facilities [Table Text Block]

Interest rates:
Spread over the London Interbank Offer Rate	2.25	-	3.25%
Spread over alternative base rate	1.25	-	2.25%
Standby fee per annum on undrawn amounts		0.50%
Covenant financial ratios:
Senior leverage ratio (debt secured by liens/EBITDA)	not more than 2.50:1
Leverage ratio (total debt less unencumbered cash/EBITDA) (1)	not more than 4.00:1
Interest coverage ratio (EBITDA/interest expense)	not more than 3.00:1

Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block]

Twelve-month period ending June 30,
2018	$	6,471
2019		4,168
2020		2,217
2021		981
Total		13,837
Less: imputed interest		(739	)
Net capital lease obligation	$	13,098