Organization (Details) (USD $)	0 Months Ended	6 Months Ended					0 Months Ended		0 Months Ended			6 Months Ended
	Jul. 03, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	May 15, 2012	Apr. 04, 2014 Shelf Registration [Member] Common Stock [Member]	Jul. 03, 2013 Shelf Registration [Member] Common Stock [Member]	Apr. 04, 2014 Shelf Registration [Member] Subsequent Event [Member]	Apr. 04, 2014 Shelf Registration [Member]	Jul. 03, 2013 Shelf Registration [Member]	Jun. 30, 2014 Shelf Registration [Member]	Jul. 03, 2013 Common Stock [Member]	Jun. 30, 2014 Line Of Credit With FGI [Member]	Jun. 30, 2014 8% Subordinated Convertible Shareholder Notes Due 2016 [Member]	May 06, 2011 8% Subordinated Convertible Shareholder Notes Due 2016 [Member]	Apr. 11, 2011 8% Subordinated Convertible Shareholder Notes Due 2016 [Member]
Organization (Details) [Line Items]
Retained Earnings (Accumulated Deficit)		$ (186,744,000)		$ (181,719,000)
Line of Credit Facility, Maximum Borrowing Capacity														7,500,000
Line of Credit Facility, Amount Outstanding														3,400,000
Line of Credit Facility, Current Borrowing Capacity														4,100,000
Shelf Registration Authorized Amount						50,000,000
Shelf Registartion Public Float Threshold						75,000,000
Shelf Registration Units Sold	1,730,000								2,030,000
Shelf Registration Unit Price	1.25									3.40
Shelf Registration Units Sold Share Component Per Unit							1						1
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right							1	1			1.25
Proceeds From Issuance Of Common Stock And Warrants							6,100,000				1,700,000
Warrants Exercised During the Period												800,000
Class of Warrant or Right, Exercise Price of Warrants or Rights							$ 4.20					$ 1.25
Proceeds from Warrant Exercises		1,000,000										1,000,000
Debt Instrument, Interest Rate, Stated Percentage															8.00%	8.00%	8.00%
Cash		$ 8,558,000	$ 3,164,000	$ 3,909,000	$ 6,878,000