• Filing Date: 2019-07-11
  • Form Type: 10-K
  • Description: Annual report
v3.19.2
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings (Details) - USD ($)
Apr. 30, 2019
Apr. 30, 2018
Apr. 30, 2017
Cash, Carrying Amount $ 1,862,458 $ 2,348,883 $ 2,071,019
Cash, Fair Value 1,862,458 $ 2,348,883  
Foreign currency option contracts, Carrying Amount 1,178    
Foreign currency option contracts, Fair Value 1,178    
Assets, Carrying Amount 1,863,636    
Assets, Fair Value 1,863,636    
Foreign currency forward contracts, Carrying Amount 4,512    
Foreign currency forward contracts, Fair Value $ 4,512