Consolidated Statements of Stockholders' Equity (Deficit) (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Deficit [Member]
Balance at Dec. 31, 2014	$ 203,777	$ 280	$ 236,838	$ (222)	$ (33,119)
Balance (shares) at Dec. 31, 2014	27,980,849us-gaap_CommonStockSharesOutstanding
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock compensation	3,191		3,191
Exercise of stock options	1,408	2	1,406
Exercise of stock options (shares)	213,192
Stock issued	13,534	3	13,531
Stock issued (shares)	329,402
Stock Repurchased During Period	(269)			(269)
Treasury stock (shares)	(6,248)
Net loss	11,190us-gaap_ProfitLoss				11,190
Balance at Mar. 31, 2015	$ 232,831	$ 285	$ 254,966	$ 491	$ (21,929)
Balance (shares) at Mar. 31, 2015	28,517,195us-gaap_CommonStockSharesOutstanding

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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