XML 47 R34.htm IDEA: XBRL DOCUMENT v3.8.0.1
Warrants Outstanding (Detail) - $ / shares
 3 Months Ended 6 Months Ended
Sep. 30, 2017
Sep. 30, 2017
Class of Warrant or Right [Line Items]    
Weighted Average Per Share Intrinsic Value, Outstanding   $ 4.68
Weighted Average Per Share Intrinsic Value, Granted   0
Weighted Average Per Share Intrinsic Value, Exercised   5.09
Weighted Average Per Share Intrinsic Value, Cancelled   0
Weighted Average Per Share Intrinsic Value, Outstanding $ 1.34 $ 1.34
Number of warrants, Outstanding   1,970,166
Number of warrants, Granted   0
Number of warrants, Exercised (19,000) (19,000)
Number of warrants, Cancelled   0
Number of warrants, Outstanding 1,951,166 1,951,166