Stock-Based Compensation (Details 1) - 6 months ended Jun. 30, 2015 - Stock Options [Member] - $ / shares	Total
Summary of all stock option plans
Number of Options/Warrants Outstanding, Beginning Balance	1,709,400
Number of Options Outstanding, Granted	590,000
Number of Options Outstanding, Granted, Expired/forfeited	(3,200)
Number of Options/Warrants Outstanding, Ending Balance	2,296,200
Weighted Average Exercise Price, Outstanding, Beginning Balance	$ 4.92
Weighted Average Exercise Price, Granted	3.56
Weighted Average Exercise Price, Expired/cancelled	86.25
Weighted Average Exercise Price, Outstanding, Ending Balance	$ 4.46