Statements of Comprehensive Income (Unaudited) - USD ($) |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2020 |
Jun. 30, 2019 |
Mar. 31, 2020 |
Mar. 31, 2019 |
|
| Net income | $ 2,411,865 | $ 3,607,419 | $ 2,411,865 | $ 3,607,419 |
| Unrealized gain from marketable securities, net of tax | 1,242,662 | 570,063 | 1,242,662 | 570,063 |
| Comprehensive income | $ 3,654,527 | $ 4,177,482 | $ 3,654,527 | $ 4,177,482 |