XML 138 R122.htm IDEA: XBRL DOCUMENT v3.10.0.1
Earnings Per Share (Details Textual) - shares
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Restricted Stock Awards      
Earnings Per Share Basic [Line Items]      
Anti-dilutive securities excluded from computation of earnings per share 0 0 0