Earnings (Loss) Per Share - Basic and Diluted (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Basic:
Basic (in shares)	27,950,829	27,462,794	27,980,074	27,485,730
Effect of dilutive securities:
Common stock options (in shares)	0	1,193	0	0
Total weighted average shares outstanding assuming dilution (in shares)	27,950,829	27,463,987	27,980,074	27,485,730
Shares of common stock issued from the exercise of stock options (in shares)	13,710	0	173,518	3,924
Stock options
Effect of dilutive securities:
Anti-dilutive stock options (in shares)	0	2,491,502	0	2,304,701