Earnings Per Share - Reconciliation of Number of Common Shares Used in Calculation of Basic and Diluted Earnings Per Share (EPS) (Details) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings Per Share [Abstract]
Antidilutive securities (in shares)	1,265,885	1,046,201	1,221,308	1,075,373
Basic EPS (in shares)	16,700,718	16,659,115	16,692,500	16,634,323
Effect of dilutive securities (in shares)	0	13,485	0	20,092
Diluted EPS (in shares)	16,700,718	16,672,600	16,692,500	16,654,415
Basic EPS (in dollars per share)	$ (0.22)	$ 0.20	$ (0.30)	$ 0.39
Effect of dilutive securities (in dollars per share)	0.00	0.00	0.00	0.00
Diluted EPS (in dollars per share)	$ (0.22)	$ 0.20	$ (0.30)	$ 0.39