Stock Based Compensation (Details 2)	9 Months Ended
	Sep. 30, 2015 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Nonvested, beginning balance	7,358
Number of Shares, Granted	52,689
Number of Shares, Vested	(6,439)
Number of Shares, Forfeited/expired	(237)
Number of Shares, Share conversion	368
Number of Shares, Nonvested, ending balance	53,739
Weighted Average Grant-Date Fair Value, Nonvested, beginning balance (in dollars per share) | $ / shares	$ 2.16
Weighted Average Grant-Date Fair Value, Granted (in dollars per share) | $ / shares	12.31
Weighted Average Grant-Date Fair Value, Vested (in dollars per share) | $ / shares	2.05
Weighted Average Grant-Date Fair Value, Forfeited/expired (in dollars per share) | $ / shares	2.02
Weighted Average Grant-Date Fair Value, Share conversion (in dollars per share) | $ / shares	2.17
Weighted Average Grant-Date Fair Value, Nonvested, ending balance (in dollars per share) | $ / shares	$ 12.12