Employee Benefits - Nonvested Options (Details) - Employee And Directors Time Based Options - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Nonvested options - Number of Options
Nonvested options - beginning balance	76,031	188,471
Shares granted	162,500	14,042
Shares forfeited	(7,267)	(2,028)
Shares vested	(22,004)	(124,454)
Nonvested options - ending balance	209,260	76,031
Nonvested options - Average Grant-Date Fair Value
Nonvested options - beginning balance (in dollars per share)	$ 3.29	$ 1.87
Shares granted (in dollars per share)	6.89	8.16
Shares forfeited (in dollars per share)	(2.84)	(2.11)
Shares vested (in dollars per share)	(2.32)	(3.12)
Nonvested options - ending balance (in dollars per share)	$ 6.21	$ 3.29