Employee Compensation Plans - Summarizes of Company's Non-Vested Options (Details) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Number of options, non-vested at beginning of year (in shares)	15,036
Number of options, granted (in shares)	4,177	2,976
Number of options, vested (in shares)	(10,552)
Number of options, non-vested at end of year (in shares)	8,661	15,036
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted average fair value, non-vested at beginning of year (in dollars per share)	$ 10.17
Weighted average fair value, granted (in dollars per share)	7.87	$ 9.94
Weighted average fair value, vested (in dollars per share)	10.66
Weighted average fair value, non-vested at end of year (in dollars per share)	$ 8.46	$ 10.17