Senior debt (Tables)

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Summary of Debt

Debt consisted of the following at December 31, 2014 and 2013:

(Table only in thousands)	December 31, 2014			December 31, 2013
Outstanding borrowings under Credit Facility (defined below). Term loan payable in quarterly principal installments of $2.2 million through September 2016, $2.8 million through September 2017, and $3.3 million thereafter with balance due upon maturity in August 2018.
– Term loan	$	90,072		$	63,781
– U.S. Dollar revolving loans		24,000			22,000
– Multi-currency revolving loans		—			—
– Unamortized debt discount		(1,796	)		(1,918	)
Total outstanding borrowings under Credit Facility		112,276			83,863
Outstanding borrowings under Canadian dollar-denominated Flextor Facility (defined below)		—			—
Outstanding borrowings (U.S. dollar equivalent) under Aarding Facility (defined below)		—			4,909
Outstanding borrowings (U.S. dollar equivalent) under Euro-denominated note payable to a bank, payable in quarterly installments of €25,000 ($30,000 as of December 31, 2014), plus interest, at a fixed rate of 3.82%, maturing January 2016. Collateralized by the Heerenveen, Netherlands building.		152			310
Total outstanding borrowings	$	112,428		$	89,082
Less: current portion		8,887			9,922
Total debt, less current portion	$	103,541		$	79,160