Stock-Based Compensation - Assumptions and Activity (Details) - USD ($)	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Weighted Average Exercise Price
Aggregate intrinsic value of all options outstanding	$ 4,000
Aggregate intrinsic value of all options exercisable	$ 1,000
Stock Options
Assumptions used to determine fair value of stock options granted
Dividend yield (as a percent)	0.00%	0.00%
Expected volatility (as a percent)	42.40%
Expected life of option	5 years	5 years
Risk-free interest rate (as a percent)	1.30%
Fair value of each option on grant date (in dollars per share)	$ 4.02
Shares
Outstanding at beginning of period (in shares)	12,168
Granted (in shares)	4,500	7,250
Exercised (in shares)	(500)	0
Outstanding at end of period (in shares)	16,168
Exercisable at end of period (in shares)	6,417
Weighted Average Exercise Price
Outstanding at beginning of period (in dollars per shares)	$ 15.47
Granted (in dollars per share)	10.75
Exercised (in dollars per share)	7.53
Outstanding at end of period (in dollars per share)	14.40
Exercisable at end of period (in dollars per share)	$ 15.41
Minimum | Stock Options
Assumptions used to determine fair value of stock options granted
Expected volatility (as a percent)		42.30%
Risk-free interest rate (as a percent)		1.40%
Fair value of each option on grant date (in dollars per share)		$ 5.43
Maximum | Stock Options
Assumptions used to determine fair value of stock options granted
Expected volatility (as a percent)		42.40%
Risk-free interest rate (as a percent)		1.50%
Fair value of each option on grant date (in dollars per share)		$ 6.14