XML 33 R23.htm IDEA: XBRL DOCUMENT v3.8.0.1
Earnings (Loss) Per Share - Textual (Details) - shares
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Earnings Per Share [Abstract]    
Common stock available for purchase through restricted stock awards and options (in shares) 247,530 237,875