Stock Purchase Warrants (Details Textual) (USD $)	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended			6 Months Ended		6 Months Ended			3 Months Ended	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 Warrant [Member]	Jun. 30, 2011 Warrant [Member]	Jun. 30, 2012 Warrant [Member]	Jun. 30, 2011 Warrant [Member]	Feb. 20, 2012 Consulting Agreement For Financial Communications Program [Member]	Jun. 30, 2012 Consulting Agreement For Financial Communications Program [Member] Warrant [Member]	Dec. 20, 2011 Consulting Agreement For Financial Advisory Services [Member]	Dec. 31, 2011 Consulting Agreement For Financial Advisory Services [Member] Warrant [Member]	Dec. 31, 2011 Common Stock Purchase Agreement With Institutional Investors [Member]	Jun. 30, 2012 Common Stock Purchase Agreement With Institutional Investors [Member]	Mar. 31, 2011 Stock Purchase Agreement With Three Institutional Investors [Member]	Dec. 31, 2010 Stock Purchase Agreement With Single Investor [Member]	Jun. 30, 2012 Stock Purchase Agreement With Single Investor [Member]
Warrants Exercisable For Compensation									250,000		100,000
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Vested In Period										50,000
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Vested In Period, Total Fair Value										$ 61,000		$ 200,000
Warrants Exercise Price Per Share													$ 1.00		$ 1.40	$ 1.32
Issuance Of Warrants To Purchase Of Common Stock													844,391		1,428,572	60,606
Warrants Expiration Date															Aug. 10, 2012	Dec. 31, 2015
Class Of Warrant Or Right, Outstanding														94,391			18,182
Allocated Share-based Compensation Expense	$ 400,000	$ 57,000	$ 908,000	$ 427,000	$ 0	$ 760,000	$ 270,000	$ 1,600,000