|
Statements of Comprehensive Income (USD $)
|
3 Months Ended | |
|---|---|---|
|
Jun. 30, 2012
|
Jun. 30, 2011
|
|
| Comprehensive Income [Abstract] | ||
| Net income | $ 3,377,658 | $ 3,439,228 |
| Unrealized loss from marketable securities, net of tax | (85,628) | 101,290 |
| Comprehensive income | $ 3,292,030 | $ 3,540,518 |