Statements of Comprehensive Income (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Net income	$ 2,577,451	$ 2,792,906	$ 9,691,472	$ 10,705,638
Unrealized loss from marketable securities, net of tax	(321,222)	(41,941)	(665,090)	(351,824)
Comprehensive income	$ 2,256,229	$ 2,750,965	$ 9,026,382	$ 10,353,814