Consolidated Statements of Changes in Stockholders' Equity (USD $) In Thousands, except Share data	Total USD ($)	Common Stock Outstanding [Member]	Common Stock [Member] USD ($)	Additional Paid-In Capital [Member] USD ($)	Retained Earnings (Accumulated deficit) [Member] USD ($)	Treasury Stock [Member] USD ($)	Accumulated Other Comprehensive Loss [Member] USD ($)
Balance, beginning at Dec. 31, 2013	$ 81,541		$ 406	$ 116,222	$ 105,889	$ (90,918)	$ (50,058)
Balance, Shares beginning at Dec. 31, 2013		34,048,366
Stock-based compensation	617			617
Exercise of stock options	48			48
Exercise of stock options, Shares		6,795
Exercise of warrants	19			19
Exercise of warrants, Shares		1,202
Other comprehensive income, net	5,097						5,097
Net loss	(21,605)				(21,605)
Balance, ending at Mar. 31, 2014	65,717		406	116,906	84,284	(90,918)	(44,961)
Balance, Shares ending at Mar. 31, 2014		34,056,363
Balance, beginning at Dec. 31, 2014	(18,502)		406	118,419	(11,343)	(90,918)	(35,066)
Balance, Shares beginning at Dec. 31, 2014	34,056,468	34,056,468
Stock-based compensation	185			185
Other comprehensive income, net	2,571						2,571
Net loss	(20,029)				(20,029)
Balance, ending at Mar. 31, 2015	$ (35,775)		$ 406	$ 118,604	$ (31,372)	$ (90,918)	$ (32,495)
Balance, Shares ending at Mar. 31, 2015	34,056,468	34,056,468