Earnings (Loss) Per Share - Basic and Diluted (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Basic:
Weighted average shares outstanding (in shares)	27,464,683	27,352,523	27,383,748	27,478,514
Effect of dilutive securities:
Common stock options (in shares)	0	0	0	0
Total weighted average shares outstanding assuming dilution (in shares)	27,464,683	27,352,523	27,383,748	27,478,514
Shares of common stock issued from the exercise of stock options (in shares)	0	0	3,924	3,970
Stock options
Effect of dilutive securities:
Anti-dilutive stock options (in shares)	2,317,572	950,817	2,237,217	954,328