Stock-Based Compensation (Details 1) - Employee Stock Option	3 Months Ended
	Mar. 31, 2017 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Options Outstanding, Balance Beginning (in shares) | shares	4,105,369
Number of Options Issued (in shares) | shares	385,395
Number of Options Exercised (in shares) | shares	(6,000)
Number of Options Forfeited (in shares) | shares	(30,503)
Number of Options Expired (in shares) | shares	0
Number of Options Outstanding, Balance Ending (in shares) | shares	4,454,261
Number of Options Exercisable (in shares) | shares	3,070,877
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Shares Outstanding Exercise Price, Balance Beginning (in dollars per share) | $ / shares	$ 4.76
Granted, Exercise Price (in dollars per share) | $ / shares	7.09
Issued, Exercise Price (in dollars per share) | $ / shares	1.10
Forfeited, Exercise Price (in dollars per share) | $ / shares	7.28
Expired, Exercise Price (in dollars per share) | $ / shares	0.00
Shares Outstanding Exercise Price, Balance Ending (in dollars per share) | $ / shares	4.95
Exercisable, Exercise Price (in dollars per share) | $ / shares	$ 3.71