Employee Benefit Plan (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Number of Shares
Exercised (in shares)	3,813
Stock Options
Number of Shares
Outstanding at beginning of year (in shares)	52,924	40,681
Granted (in shares)	22,000	22,000
Exercised (in shares)	(3,813)
Cancelled (in shares)		(3,988)
Forfeited (in shares)	(9,430)	(5,769)
Outstanding at end of period (in shares)	61,681	52,924
Exercisable at end of period (in shares)	24,613	17,176
Weighted Average Exercise Price
Outstanding at beginning of year (in dollars per share)	$ 11.12	$ 9.49
Granted (in dollars per share)	$ 14.98	$ 14.00
Exercised (in dollars per share)	$ 10.39
Cancelled (in dollars per share)		$ 9.85
Forfeited (in dollars per share)	$ 13.82	$ 11.45
Outstanding at end of period (in dollars per share)	$ 12.13	$ 11.12
Weighted average fair value of options granted during the period (in dollars per share)	$ 5.31	$ 5.31