Stock-Based Compensation (Summary of Stock Option Activity) (Details) - USD ($)	3 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Stock-Based Compensation [Abstract]
Shares Available for Grant, Balance at December 31, 2015		723,431
Shares Available for Grant, Granted		(231,208)
Shares Available for Grant, Exercised
Shares Available for Grant, Forfeited		158,856
Shares Available for Grant, Expired		1,083
Shares Available for Grant, Authorized		1,000,000
Shares Available for Grant, Balance at September 30, 2016		1,652,162		723,431
Shares, Balance at December 31, 2015		669,769
Shares, Granted	547,181	231,208	547,181
Shares, Exercises
Shares, Forfeited		(158,856)
Shares, Expired		(5,183)
Shares, Balance at September 30, 2016		736,938		669,769
Shares, Vested or expected to vest at September 30, 2016		626,777
Shares, Exercisable at September 30, 2016		179,501
Weighted Average Exercise Price, Outstanding at December 31, 2015		$ 8.68
Weighted Average Exercise Price, Granted	$ 8.72	2.82	$ 8.72
Weighted Average Exercise Price, Exercised
Weighted Average Exercise Price, Forfeited		8.86
Weighted Average Exercise Price, Expired		12.72
Weighted Average Exercise Price, Outstanding at September 30, 2016		6.78		$ 8.68
Weighted Average Exercise Price, Vested or expected to vest at September 30, 2016		7.10
Weighted Average Exercise Price, Exercisable at September 30, 2016		$ 8.76
Average Remaining Contractual Term (Years), Outstanding at December 31, 2015		8 years 7 months 6 days		9 years 3 months 15 days
Average Remaining Contractual Term (Years), Outstanding at September 30, 2016		8 years 7 months 6 days		9 years 3 months 15 days
Average Remaining Contractual Term (Years), Vested or expected to vest at September 30, 2016		8 years 6 months
Average Remaining Contractual Term (Years), Exercisable at September 30, 2016		7 years 1 month 24 days
Intrinsic Value, Exercisable at September 30, 2016		$ 0