Stockholders' Equity (Details Textual) (USD $)	12 Months Ended						12 Months Ended			12 Months Ended				12 Months Ended		12 Months Ended				1 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Jan. 31, 2012	Dec. 27, 2011	Dec. 31, 2011 Private Placement [Member]	Dec. 27, 2011 Private Placement [Member]	Dec. 31, 2012 Employee Stock [Member]	Dec. 31, 2011 Employee Stock [Member]	Dec. 31, 2012 Minimum [Member] Employee Stock [Member]	Dec. 31, 2012 2005 Employee Stock Purchase Plan [Member]	Dec. 31, 2011 2005 Employee Stock Purchase Plan [Member]	Dec. 31, 2012 Series B - Preferred Stock [Member]	May 04, 2011 Series B - Preferred Stock [Member]	Dec. 31, 2012 Series C - Preferred Stock [Member]	May 04, 2011 Series C - Preferred Stock [Member]	Dec. 31, 2006 Series E - Preferred Stock - [Member]	Dec. 31, 2012 Series E - Preferred Stock - [Member]	Dec. 31, 2011 Series E - Preferred Stock - [Member]	May 04, 2011 Series E - Preferred Stock - [Member]	Jan. 31, 2012 Common Stock [Member]	Dec. 31, 2011 Common Stock [Member]	Dec. 27, 2011 Common Stock [Member]
Stockholders' Equity (Additional Textual) [Abstract]
Number of shares to be retired																80,000
Liquidation preference for preferred shares																107.00%
Net proceeds from the exercise of common stock	$ 0	$ 566								$ 3,306	$ 8,623
Outstanding employee stock options		3,333								36,481	45,624
Purchase price of the Common Stock							95.00%		85.00%
Conversion of Preferred Stock into common stock	$ 0.0001	$ 0.0001
Common stock shares issued	62,647,987	59,768,846	2,842,660		3,775,408	6,618,068	36,481	45,624
Purchase price of Common Stock	425,000		320,000
Preferred stock, liquidation value																$ 100	$ 107	$ 107
Common Stock reserved for issuance							1,000,000
Amount of authorized payroll deductions							25,000
Preferred stock outstanding, shares													800,000		200,000		80,000	80,000
Share based compensation, Maximum employee subscription rate							10.00%
Modified price of convertible preferred stock													$ 0.60
Preferred stock outstanding, stated value	$ 0.0001	$ 0.0001											$ 10		$ 10	$ 100
Warrants to purchase shares of Common Stock	3,775,408	0		6,618,068																2,842,660	3,775,408	6,618,068
Common stock issued upon conversion				6,618,068									13,333,333		3,333,333
Preferred shares held by principal stakeholder													400,000
Warrant expiration date	Dec. 31, 2014
Cumulative dividends on preferred stock												8.00%		9.00%
Fixed price of convertible preferred stock													$ 3.625		$ 0.60
Net proceeds from the private placement		745,000																		320,000	425,000
Preferred Stock indirectly held by Ardinger																			80,000
Stockholders' Equity (Textual) [Abstract]
Weighted- Average Exercise Price Per Share, Exercised		$ 0.17
Purchase price of a private placement unit	$ 0.1125707
Warrants exercise price per Common Share	$ 0.1238278
Weighted average closing trading period				5 days
Maximum number of shares available for grant	6,000,000
Stock based compensation expense	80,896	131,858
Number of Shares, Granted	2,105,000	2,565,000
Unearned stock-based compensation	179,000
Weighted-average grant date fair value for options granted	$ 0.09	$ 0.26
Weighted-average period over which the unearned stock-based compensation is expected to be recognized	3 years
Weighted average closing price of Common Stock				110.00%
Common stock shares issued	62,647,987	59,768,846	2,842,660		3,775,408	6,618,068	36,481	45,624
Class of warrant or right aggregate purchase price of warrants				$ 745,000
Outstanding warrants to purchase shares of Common Stock	6,618,068	3,775,408