Stock-Based Compensation (Summary of Stock Option Activity) (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Stock-Based Compensation [Abstract]
Shares Available for Grant, Balance at December 31, 2015	723,431
Shares Available for Grant, Granted	(207,208)
Shares Available for Grant, Exercised
Shares Available for Grant, Forfeited
Shares Available for Grant, Expired
Shares Available for Grant, Balance at March 31, 2016	516,223	723,431
Shares, Balance at December 31, 2015	669,769
Shares, Granted	207,208
Shares, Exercises
Shares, Forfeited
Shares, Expired	(4,000)
Shares, Balance at March 31, 2016	872,977	669,769
Shares, Vested or expected to vest at March 31, 2016	704,778
Shares, Exercisable at March 31, 2016	99,394
Weighted Average Exercise Price, Outstanding at December 31, 2015		$ 8.68
Weighted Average Exercise Price, Granted	$ 2.83
Weighted Average Exercise Price, Exercised
Weighted Average Exercise Price, Forfeited
Weighted Average Exercise Price, Expired	$ 10.00
Weighted Average Exercise Price, Outstanding at March 31, 2016	7.29
Weighted Average Exercise Price, Vested or expected to vest at March 31, 2016	7.63
Weighted Average Exercise Price, Exercisable at March 31, 2016	$ 9.19
Average Remaining Contractual Term (Years), Outstanding at December 31, 2015	9 years 3 months 4 days	9 years 3 months 15 days
Average Remaining Contractual Term (Years), Outstanding at March 31, 2016	9 years 3 months 4 days	9 years 3 months 15 days
Average Remaining Contractual Term (Years), Vested or expected to vest at March 31, 2016	9 years 2 months 5 days
Average Remaining Contractual Term (Years), Exercisable at March 31, 2016	7 years 8 months 9 days
Intrinsic Value, Outstanding at March 31, 2016	$ 229,076
Intrinsic Value, Vested or expected to vest at March 31, 2016	141,846
Intrinsic Value, Exercisable at March 31, 2016	$ 0