CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended		9 Months Ended
	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2015	Nov. 30, 2014
Income Statement [Abstract]
Interest income	$ 260,167	$ 255,889	$ 849,333	$ 743,167
Equity in net income (loss) of unconsolidated investees	(1,144,400)	(1,234,308)	1,250,400	(17,587)
Professional fees and other expenses	(44,279)	(53,971)	(199,881)	(199,047)
Income (loss) before income taxes	(928,512)	(1,032,390)	1,899,852	526,533
Income taxes (benefit)	366,174	339,024	(367,272)	1,640
Net income (loss)	(562,338)	(693,366)	1,532,580	528,173
Equity in other comprehensive loss of unconsolidated investee	0	(8,148)	0	(27,058)
Reversal of comprehensive income of unconsolidated investee previously accounted for using the equity method	0	(274,818)	0	(274,818)
Unrealized gain (loss) on available-for-sale securities	1,088,219	(7,051,088)	20,514,940	(7,051,088)
Comprehensive income (loss)	$ 525,881	$ (8,027,420)	$ 22,047,520	$ (6,824,791)