Stock-Based Compensation - Summary of Restricted Stock (Details) - Restricted Stock	12 Months Ended
	Dec. 31, 2016 $ / shares shares
Shares
Nonvested at beginning of period (in shares) | shares	41,563
Granted (in shares) | shares	29,025
Vested (in shares) | shares	(19,219)
Forfeited (in shares) | shares	(547)
Nonvested at end of period (in shares) | shares	50,822
Weighted Average Grant Date Value
Nonvested at beginning of period (in dollars per share) | $ / shares	$ 22.15
Granted (in dollars per share) | $ / shares	23.55
Vested (in dollars per share) | $ / shares	21.47
Forfeited (in dollars per share) | $ / shares	21.98
Nonvested at end of period (in dollars per share) | $ / shares	$ 23.21