Statements of Comprehensive Income (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Net income	$ 3,483,744	$ 2,577,451	$ 9,921,486	$ 9,691,472
Unrealized loss from marketable securities, net of tax	(571,862)	(321,222)	(587,068)	(665,090)
Comprehensive income	$ 2,911,882	$ 2,256,229	$ 9,334,418	$ 9,026,382