Consolidated Statements of Stockholders' Deficit - USD ($) $ in Thousands	Common Stock	Capital deficiency	Accumulated earnings (deficit)	Accumulated other comprehensive loss	Employee notes receivable	Total
Beginning balance at Dec. 31, 2012	$ 41	$ (27,786)	$ (16,091)	$ (1,259)	$ (137)	$ (45,232)
Beginning balance (in shares) at Dec. 31, 2012	41,268,898
Issuance of common stock, net of issuance costs (in shares)	123,112
Redemption of common stock (in shares)	(278,058)
Repayment of employee note					10	10
Components of comprehensive income:
Net income			8,587			8,587
Currency translation adjustment				(261)		(261)
Ending balance at Dec. 31, 2013	$ 41	(27,786)	(7,504)	(1,520)	(127)	(36,896)
Ending balance (in shares) at Dec. 31, 2013	41,113,952
Issuance of common stock, net of issuance costs		2,945				2,945
Issuance of common stock, net of issuance costs (in shares)	257,268
Repayment of employee note					19	19
Components of comprehensive income:
Net income			13,302			13,302
Currency translation adjustment				(1,064)		(1,064)
Ending balance at Dec. 31, 2014	$ 41	(24,841)	5,798	(2,584)	(108)	$ (21,694)
Ending balance (in shares) at Dec. 31, 2014	41,371,220					41,371,220
Issuance of common stock, net of issuance costs	$ 15	135,289				$ 135,304
Issuance of common stock, net of issuance costs (in shares)	15,000,000
Shares issued under stock-based compensation plans (in shares)	257,664
Stock-based compensation		885				885
Redemption of common stock		(46)				(46)
Redemption of common stock (in shares)	(86,768)
Dividend distribution on Series A Preferred Stock		(230,315)				(230,315)
Repayment of employee note					$ 108	108
Components of comprehensive income:
Net income			30,863			30,863
Currency translation adjustment				(1,715)		(1,715)
Ending balance at Dec. 31, 2015	$ 56	$ (119,028)	$ 36,661	$ (4,299)		$ (86,610)
Ending balance (in shares) at Dec. 31, 2015	56,542,116					56,542,116