Condensed Consolidated Statements of Stockholders' Equity (Deficit) (unaudited) (USD $) In Thousands, except Share data	Convertible Notes Payable [Member] Convertible Preferred Stock [Member]	Convertible Notes Payable [Member] Additional Paid-in Capital [Member]	Convertible Notes Payable [Member]	Common Stock [Member] Convertible Preferred Stock [Member]	Common Stock [Member]	Convertible Preferred Stock [Member]	Convertible Preferred Stock [Member]	Additional Paid-in Capital [Member] Convertible Preferred Stock [Member]	Additional Paid-in Capital [Member]	Receivables from Stockholder [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2012					$ 149				$ 64,604	$ (21)	$ (129,410)	$ (64,678)
Balance (in Shares) at Dec. 31, 2012					14,864,607		856,026
Stock-based compensation expense									4,101			4,101
Issuance of common stock							1		32,455			32,456
Issuance of common stock (in Shares)							4,600,000
Securities Converted to Common Stock	2	59,282	59,284	(149)		2		147
Securities Converted to Common Stock (in Shares)	7,410,341			(14,864,607)		8,528,860
Exercise of stock options									134			134
Exercise of stock options (in Shares)							19,116					(19,116)
Net income											16,277	16,277
Balance at Sep. 30, 2013							$ 5		$ 160,723	$ (21)	$ (113,133)	$ 47,574
Balance (in Shares) at Sep. 30, 2013							21,414,343