Stockholders' Equity (Details Textual) (USD $)	1 Months Ended			12 Months Ended												12 Months Ended				12 Months Ended						12 Months Ended
	Oct. 31, 2008	Feb. 28, 2006	Feb. 28, 2003	Dec. 31, 2012	Dec. 31, 2011	Jul. 17, 2012	Dec. 31, 2010	May 28, 2010	Oct. 02, 2008	Feb. 29, 2008	Feb. 02, 2006	Dec. 31, 2012 Vesting Schedule A [Member]	Dec. 31, 2012 Vesting Schedule B [Member]	Dec. 31, 2012 Vesting Schedule C [Member]	Dec. 31, 2012 Vesting Schedule D [Member]	Dec. 31, 2012 Stock Option Plan 2001 [Member]	Apr. 12, 2001 Stock Option Plan 2001 [Member]	Dec. 31, 2012 Stock Option Plan 2002 [Member]	Apr. 24, 2002 Stock Option Plan 2002 [Member]	Dec. 31, 2012 Stock Incentive Plan 2007 [Member]	Dec. 31, 2011 Stock Incentive Plan 2007 [Member]	Dec. 31, 2010 Stock Incentive Plan 2007 [Member]	Dec. 31, 2008 Stock Incentive Plan 2007 [Member]	Oct. 01, 2007 Stock Incentive Plan 2007 [Member]	Jun. 22, 2007 Stock Incentive Plan 2007 [Member]	Dec. 31, 2012 Stock Incentive Plan 2009 [Member]	Apr. 10, 2009 Stock Incentive Plan 2009 [Member]
Employee Stock Ownership Plan (ESOP), Plan Description				The Compensation Committee administers the stock-based plans. The exercise price for Incentive Stock Options ("ISO") cannot be less than the fair value of the stock subject to the option on the grant date (110% of such fair value in the case of ISOs granted to a stockholder who owns more than 10% of the Company's Common Stock). The exercise price of a Non-Qualified Stock Options ("NQSO") shall be fixed by the Compensation Committee at whatever price the Committee may determine in good faith. Unless the Committee determines otherwise, options beginning with the 2007 Plan generally have a 4-year term with a 3-year vesting schedule.
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term				3 years 9 months 18 days
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate				0.00%
Allocated Share-based Compensation Expense				$ 95,000	$ 134,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized				224,000
Expected Recognized Compensation Expenses Year 2013				118,000
Expected Recognized Compensation Expenses Year 2014				70,000
Expected Recognized Compensation Expenses Year 2015				26,000
Expected Recognized Compensation Expenses Year 2016				8,000
Expected Recognized Compensation Expenses Year 2017				2,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized																	119,050		142,860						150,000		250,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant																139,958		123,430								59,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number																2,000		27,500
Shares, Exercised (in shares)				(49,000)	(4,000)											5,500				43,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period																				2,500						1,500
Stock Issued During Period, Shares, Restricted Stock Award, Gross																						14,250
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited																					7,125	7,125
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross				109,000	8,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number				218,500	162,500		202,750					21,000	29,000	30,000	109,000								77,500	74,000
Common Shares Issuable Upon Conversion Of Warrants	20,000	303,030
Investment Warrants, Exercise Price	$ 4.80	$ 3.30
Convertible Debt		1,000,000							2,000,000
Warrants Not Settleable in Cash, Fair Value Disclosure											443,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures																										191,000
Share Based Compensation Arrangement By Share Based Payment Award Options Grant Outstanding Number																										189,000
Share Based Compensation Arrangement By Share Based Payment Award Options Vested																										17,500
Share Based Compensation Arrangement By Share Based Payment Award Options Not Vested																										171,500
Percentage Of Common Stock Issued				4.00%
Share Price						$ 0.01
Warrants Intrinsic Value				721,000
Warrants Expiration Term				9 years 6 months
Notes Payable				5,000,000				500,000		29,000
Fair Value Of Warrants		$ 443,000	$ 460,000	$ 703,000