Consolidated Statements Of Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Series B [Member]	Series E [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accum Deficit [Member]
Balances, beginning balance at Dec. 31, 2011
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Declared and paid dividends on preferred stock, shares				92,000
Declared and paid dividends on preferred stock	$ 0	$ 0	$ 0	$ 0	$ 233	$ (233)
Common stock issued from exercise of rights offering, shares		0	0	0
Common stock issued from exercise of rights offering	0	0	0	0	0	0
Stock issuance costs	0	0	0	1	(1)	0
Share based compensation, shares		0	0	0
Stock-based compensation	647	0	0	0	647	0
Net loss	(713)	0	0	0	0	(713)
Balances, ending balance at Dec. 31, 2012	24,813	0	6,855	300	146,083	(128,425)
Balances, shares, endings balance at Dec. 31, 2012		44,000	1,731,000	30,073,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Redeemed or Called During Period, Shares			(1,703,000)
Stock Redeemed or Called During Period, Value	(25,619)		(6,854)		268	(19,033)
Declared and paid dividends on preferred stock, shares		0		76,000
Declared and paid dividends on preferred stock	(1)	0		1	166	(167)
Common stock issued from exercise of rights offering, shares	(314,000)	0	0	314,000
Common stock issued from exercise of rights offering	1,013	0	0	3	1,010
Common stock issued from exercise of rights offering, shares				6,032,000
Common stock issued from exercise of rights offering	11,398			60	11,338	0
Stock issuance costs	(222)	0	0	1	(223)	0
Share based compensation, shares		0	0	0
Stock-based compensation	385	0	0	0	385	0
Net loss	(21,542)	0	0	0	0	(21,542)
Balances, ending balance at Dec. 31, 2013	$ (9,775)	$ 0	$ 1	$ 365	$ 159,027	$ (169,167)
Balances, shares, endings balance at Dec. 31, 2013		44,000	28,000	36,495,000