Stockholders' Equity (Details 2) (USD $)				12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Exercise Price Range One [Member]	Dec. 31, 2012 Exercise Price Range Two [Member]	Dec. 31, 2012 Exercise Price Range Three [Member]	Dec. 31, 2012 Exercise Price Range Four [Member]	Dec. 31, 2012 Exercise Price Range Five [Member]	Dec. 31, 2012 Exercise Price Range Six [Member]	Dec. 31, 2012 Exercise Price Range Seven [Member]	Dec. 31, 2012 Exercise Price Range Eight [Member]	Dec. 31, 2012 Exercise Price Range Nine [Member]
Summary of status of the options granted under various agreements, range of exercise prices
Range of Exercise Prices				$ 2.30	$ 3.00	$ 2.75	$ 0.98	$ 0.82	$ 0.65	$ 2.68	$ 0.98	$ 1.50
Number Outstanding	3,640,324			996,000	332,000	125,000	200,000	200,000	800,000	384,000	50,000	553,324
Options Outstanding Weighted Average Remaining Contractual Life				4 years 6 months	2 years 9 months 7 days	2 years 5 months 23 days	1 year 3 months 7 days	4 days	1 year 7 months 6 days	3 years 6 months	1 year 4 months 13 days	2 years 15 days
Weighted Average Exercise Price	$ 1.76	$ 1.59	$ 1.37	$ 2.30	$ 3.00	$ 2.75	$ 0.98	$ 0.82	$ 0.65	$ 2.68	$ 0.98	$ 1.50
Number Exercisable	2,932,991			422,000	302,667	125,000	200,000	200,000	800,000	280,000	50,000	553,324
Options Exercisable Weighted-Average Exercise Price				$ 2.30	$ 3.00	$ 2.75	$ 0.98	$ 0.82	$ 0.65	$ 2.86	$ 0.98	$ 1.50