Stock-Based Compensation (Details 3) - Restricted Stock Units (RSUs)	9 Months Ended
	Sep. 30, 2017 $ / shares shares
Number of RSUs
Non-vested balance at beginning of period (in shares) | shares	179,900
Shares granted (in shares) | shares	93,468
Shares vested (in shares) | shares	(71,941)
Shares forfeited (in shares) | shares	(4,465)
Non-vested balance at end of period (in shares) | shares	196,962
Weighted Average Exercise Price
Weighted Average Exercise Price, Non-vested Balance Beginning (in dollars per share) | $ / shares	$ 9.35
Shares granted - Weighted Average Exercise Price (in dollars per share) | $ / shares	7.26
Shares vested - Weighted Average Exercise Price (in dollars per share) | $ / shares	9.82
Shares forfeited - Weighted Average Exercise Price (in dollars per share) | $ / shares	7.09
Weighted Average Exercise Price, Non-vested Balance Ending (in dollars per share) | $ / shares	$ 8.23