Quarterly report pursuant to Section 13 or 15(d)

Amortized cost, net unrealized gains or losses, and fair values

v3.21.4
Amortized cost, net unrealized gains or losses, and fair values
6 Months Ended
Oct. 31, 2021
USD ($)
Available For Sale Securities Amortized Cost [Member]  
Money market funds $ 1,598,428
Asset-backed securities 3,444,037
Corporate bonds 43,219,180
Total 48,261,645
Available For Sale Securities Fair Value [Member]  
Money market funds 1,599,160
Asset-backed securities 3,434,956
Corporate bonds 43,088,541
Total 48,122,657
Available For Sale Securities Unrealized Gain Loss [Member]  
Debt Securities, Available-for-sale, Unrealized Gain (Loss) 732
Asset Backed Securities Net Unrealized Gain Losses [Member]  
Debt Securities, Available-for-sale, Unrealized Gain (Loss) (9,081)
Corporate Bonds Unrealized Gain Losses [Member]  
Debt Securities, Available-for-sale, Unrealized Gain (Loss) (130,639)
Available For Sale Securities Net Unrealized Gain Losses [Member]  
Debt Securities, Available-for-sale, Unrealized Gain (Loss) $ (138,988)