XML 77 R60.htm IDEA: XBRL DOCUMENT v3.10.0.1
Earnings Per Share (Details Textual) - shares
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Earnings Per Share (Textual)        
Warrants shares are excluded from calculations of dilutive net income per share 820,312 820,312 820,312 820,312