CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total	Series B-1 Preferred Stock [Member]	Series A-2 Preferred Stock [Member]	Common Stock [Member]	Additional Paid In Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]
Beginning Balance, Value at Dec. 31, 2012	$ 13,003	$ 10,000	$ 167	$ 3	$ 166,481	$ (163,648)	$ 0
Beginning Balance, Shares at Dec. 31, 2012		100	53	28,887,000			0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(4,211)					(4,211)
Stock-based compensation	1,038				1,038
Forfeiture of restricted stock, net of issuance, Shares				(462,000)
Forfeiture of restricted stock, net of issuance, Value	0
Stock issued in connection with debt amendment, Shares				100,000
Common stock issued in connection with debt amendment	148				148
Preferred stock exchange, Shares		(100)		6,767,000
Preferred stock exchange, Value	(289)	(10,000)		1	9,710
Preferred stock dividends	(20)				(20)
Options exercised, Shares				14,000
Options exercised, Value	0
Ending Balance, Value at Dec. 31, 2013	9,669	0	167	4	177,357	(167,859)	0
Ending Balance, Shares at Dec. 31, 2013		0	53	35,306,000			0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(2,755)					(2,755)
Stock-based compensation	563				563
Issuance of restricted stock to settle accrued 2013 bonuses, Shares				123,000
Issuance of restricted stock to settle accrued 2013 bonuses, Value	204				204
Common stock issued in connection with debt amendment	0
Issuance of restricted stock, Shares				400,000
Issuance of restricted stock, Value	0
Forfeited restricted stock, Shares				(224,000)
Forfeited restricted stock, Value	0
Cost of preferred stock exchange	(5)				(5)
Preferred stock dividends	(20)				(20)
Options exercised, Shares	50,000			20,000
Options exercised, Value	0
Repurchase of common stock, Shares							40,000
Repurchase of common stock, Value	(66)						(66)
Issuance of common stock under an at-the-market sales agreement, net of expenses, Shares				326,000
Issuance of common stock under an at-the-market sales agreement, net of expenses, Value	377				377
Ending Balance, Value at Dec. 31, 2014	$ 7,967	$ 0	$ 167	$ 4	$ 178,476	$ (170,614)	$ (66)
Ending Balance, Shares at Dec. 31, 2014		0	53	35,951,000			40,000