Stockholders' Equity and Employee Stock Option Plans (Details Textual) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Stockholders' Equity and Employee Stock Option Plans (Textual) [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	0	0	0	0
Total intrinsic value of options exercised	$ 0	$ 0	$ 0	$ 0
Total fair value of RSUs vested and released	712,000	2,000,000	738,000	2,700,000
Non-vested restricted stock units and restricted stock awards	212,500		212,500
Cumulative expense recognized			$ 570,000