Stockholders Equity (Details Textual) (USD $)	0 Months Ended	9 Months Ended				3 Months Ended		9 Months Ended
	Apr. 11, 2013	Sep. 30, 2013	Feb. 12, 2013	Dec. 31, 2012	Dec. 31, 2012 Series B Preferred Stock [Member]	Sep. 30, 2013 Second Amended And Restated 2005 Equity Incentive Plan [Member]	Sep. 30, 2012 Second Amended And Restated 2005 Equity Incentive Plan [Member]	Sep. 30, 2013 Second Amended And Restated 2005 Equity Incentive Plan [Member]	Sep. 30, 2012 Second Amended And Restated 2005 Equity Incentive Plan [Member]	Sep. 30, 2013 Series E Preferred Stock [Member]	Dec. 31, 2012 Series E Preferred Stock [Member]
Schedule of Stockholders Equity (Textual) [Abstract]
Stock-based compensation expense						$ 65,000	$ 155,000	$ 215,000	$ 506,000
Total unrecognized compensation						38,000		38,000
Vesting period for unrecognized compensation cost to be recognized						1 year
Authorized issuance			75,530
Dividends undeclared					167,000
Common stock, shares issued	6,032,153	30,149,000		30,073,000
Expected proceeds	11,400,000
Expected proceeds, net		11,200,000
Stock payable										$ 22,800,000	$ 0