Stock Options and Award Programs (Details 1) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, outstanding and exercisable, Options outstanding, Beginning Balance	2,791,601	3,336,500
Number of Shares, Granted		50,000
Number of Shares, Cancelled	(250,000)
Number of Shares, Exercised	(217,160)
Number of Shares, Vested	0	0
Number of Shares, outstanding and exercisable, Options outstanding, Ending Balance	2,324,441	3,386,500
Number of Shares, Options vested and expected to vest, Ending Balance	2,324,441	3,386,500
Number of Shares, Options outstanding and exercisable, Ending Balance	1,650,269	1,859,412
Weighted Average Exercise Price per Share, outstanding and exercisable, Options outstanding, Beginning Balance	$ 0.83	$ 0.72
Weighted Average Exercise Price per Share, Granted		$ 1.48
Weighted Average Exercise Price per Share, Cancelled	$ 0.74
Weighted Average Exercise Price per Share, Exercised	$ 0.58
Weighted Average Exercise Price per Share, Vested	$ 0	$ 0
Weighted Average Exercise Price per Share, outstanding and exercisable, Options outstanding, Ending Balance	$ 0.86	$ 0.73
Number of Shares, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price, Ending Balance	$ 0.86	$ 0.73
Weighted Average Exercise Price per Share, Options outstanding and exercisable, Ending Balance	$ 0.76	$ 0.71
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, outstanding and exercisable, Options outstanding, Beginning Balance	294,048	222,619
Number of Shares, Granted		0
Number of Shares, Cancelled	0	0
Number of Shares, Exercised	0
Number of Shares, Vested	17,857	17,857
Number of Shares, outstanding and exercisable, Options outstanding, Ending Balance	311,905	240,476
Number of Shares, Options vested and expected to vest, Ending Balance	311,905	240,476
Number of Shares, Options outstanding and exercisable, Ending Balance	0	0
Weighted Average Exercise Price per Share, outstanding and exercisable, Options outstanding, Beginning Balance	$ 1.22	$ 1.22
Weighted Average Exercise Price per Share, Granted		$ 0
Weighted Average Exercise Price per Share, Cancelled	$ 0	$ 0
Weighted Average Exercise Price per Share, Exercised	$ 0
Weighted Average Exercise Price per Share, Vested	$ 1.22	$ 1.22
Weighted Average Exercise Price per Share, outstanding and exercisable, Options outstanding, Ending Balance	$ 1.22	$ 1.22
Number of Shares, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price, Ending Balance	$ 1.22	$ 1.22
Weighted Average Exercise Price per Share, Options outstanding and exercisable, Ending Balance	$ 0	$ 0