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

3 Months Ended

Mar. 31, 2016

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 5.00:1
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 March 31,
2017	$	7,955
2018		5,044
2019		2,723
2020		587
Total		16,309
Less: imputed interest		(667	)
Net capital lease obligation	$	15,642