Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Class C Special Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]
Balance at Dec. 31, 2012	$ (42,715)	$ 0	$ 0	$ 1,083	$ 0	$ (43,798)
Balance (in shares) at Dec. 31, 2012		4,070			0
Preferred Stock Dividends	(4,975)	$ 0	0	0	$ 0	(4,975)
Non-cash Compensation Relating to Business Combination	4,418	0	0	4,418	0	0
Cancellation of Convertible Preferred Stock	53,726	0	0	53,726	0	0
Shares Issued in Merger	29,795	$ 1	0	29,794	$ 0	0
Shares Issued in Merger (in shares)		5,469			0
Stock-based Compensation Expense	36	$ 0	0	36	$ 0	0
Purchase of Common Stock for Treasury	(433)	$ 0	0	0	$ (433)	0
Purchase of Common Stock for Treasury (in shares)		0			59
Issuance of Common Stock upon Warrant Exercise	809	$ 0	0	809	$ 0	0
Issuance of Common Stock upon Warrant Exercise (in shares)		90			0
Issuance of Restricted Stock Awards	0	$ 0	0	(365)	$ 365	0
Issuance of Restricted Stock Awards (in Shares)		0			(50)
Excess Tax Benefit from Stock-based Compensation Awards	0
Net Income	301	$ 0	0	0	$ 0	301
Balance at Dec. 31, 2013	40,962	$ 1	0	89,501	$ (68)	(48,472)
Balance (in shares) at Dec. 31, 2013		9,629			9
Stock-based Compensation Expense	3,423	$ 0	0	3,423	$ 0	0
Issuance of Common Stock upon Warrant Exercise	750	$ 0	0	750	$ 0	0
Issuance of Common Stock upon Warrant Exercise (in shares)		83			0
Issuance of Common Stock in Equity Offering	46,680	$ 0	0	46,680	$ 0	0
Issuance of Common Stock in Equity Offering (in shares)		1,613			0
Allocation of proceeds from sale of Convertible Notes to Embedded Conversion Option	20,195	$ 0	0	20,195	$ 0	0
Cost of Bond-hedge, Net of Proceeds from Sale of Warrant	(2,575)	0	0	(2,575)	0	0
Issuance of Common Shares upon Stock Option Exercise	819	$ 0	0	819	$ 0	0
Issuance of Common Shares upon Stock Option Exercise (in Shares)		43			0
Issuance of Restricted Stock Awards	0	$ 0	0	(68)	$ 68	0
Issuance of Restricted Stock Awards (in Shares)		20			(9)
Excess Tax Benefit from Stock-based Compensation Awards	784	$ 0	0	784	$ 0	0
Net Income	28,747	0	0	0	0	28,747
Balance at Dec. 31, 2014	139,785	$ 1	0	159,509	$ 0	(19,725)
Balance (in shares) at Dec. 31, 2014		11,388			0
Stock-based Compensation Expense	3,856	$ 0	0	3,856	$ 0	0
Purchase of Common Stock for Treasury	(113)	$ 0	0	0	$ (113)	0
Purchase of Common Stock for Treasury (in shares)		0			7
Issuance of Common Shares upon Stock Option Exercise	819	$ 0	0	706	$ 113	0
Issuance of Common Shares upon Stock Option Exercise (in Shares)		84			(5)
Issuance of Restricted Stock Awards	0	$ 0	0	0	$ 0	0
Issuance of Restricted Stock Awards (in Shares)		26			(2)
Excess Tax Benefit from Stock-based Compensation Awards	360	$ 0	0	360	$ 0	0
Net Income	15,375	0	0	0	0	15,375
Balance at Dec. 31, 2015	$ 160,082	$ 1	$ 0	$ 164,431	$ 0	$ (4,350)
Balance (in shares) at Dec. 31, 2015		11,498			0