Statements of Comprehensive Income (Unaudited) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2015 |
Sep. 30, 2014 |
Sep. 30, 2015 |
Sep. 30, 2014 |
|
| Net income | $ 3,310,795 | $ 3,875,622 | $ 7,114,021 | $ 7,912,732 |
| Unrealized loss from marketable securities, net of tax | (35,369) | (404,731) | (343,868) | (309,883) |
| Comprehensive income | $ 3,275,426 | $ 3,470,891 | $ 6,770,153 | $ 7,602,849 |