XML 35 R24.htm IDEA: XBRL DOCUMENT v3.10.0.1
Earnings Per Share (Detail Textuals) - shares
3 Months Ended 6 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Stock options        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Potential common stock shares not included in diluted earnings per share calculation 79,600 154,565 79,600 149,781