(Loss) Earnings Per Share - Basic and Diluted (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Basic:
Basic (in shares)	29,097,094	28,309,004	29,086,811	28,243,400
Effect of dilutive securities:
Common stock options (in shares)	0	235,006	0	231,032
Total weighted average shares outstanding assuming dilution (in shares)	29,097,094	28,544,010	29,086,811	28,474,432
Shares of common stock issued from the exercise of stock options (in shares)	0	84,705	7,021	231,470