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
	Mar. 31, 2019	Mar. 31, 2018
Earnings Per Share [Abstract]
Antidilutive securities (in shares)	372,326	655,944
Earnings Per Share, Basic and Diluted [Abstract]
Basic earnings per share (in shares)	17,280,365	16,837,754
Effect of dilutive securities (in shares)	588,451	305,016
Diluted earnings (in shares)	17,868,816	17,142,770
Basic earnings (in dollars per share)	$ 0.01	$ 0.03
Effect of dilutive securities (in dollars per share)	0	0
Diluted earnings (in dollars per share)	$ 0.01	$ 0.03