Earnings (Loss) Per Share - Basic and Diluted (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Basic:
Basic (in shares)	27,941,814	27,464,683	27,867,090	27,383,748
Effect of dilutive securities:
Common stock options (in shares)	0	0	0	0
Total weighted average shares outstanding assuming dilution (in shares)	27,941,814	27,464,683	27,867,090	27,383,748
Shares of common stock issued from the exercise of stock options (in shares)	55,953	0	159,808	3,924
Stock options
Effect of dilutive securities:
Anti-dilutive stock options (in shares)	0	2,317,572	0	2,237,217