Condensed Consolidated Statements of Equity (Unaudited) - USD ($)		Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interest [Member]		Total
Balance (in shares) at Mar. 31, 2016		2,372,527
Balance at Mar. 31, 2016		$ 593,131	$ 4,956,171	$ 28,821,825	$ (140,519)	$ 1,040,922		$ 35,271,530
Net income (loss)				(5,751,471)		(2,237,909)		(7,989,380)
Net change from marketable securities, net of tax					241,281			241,281
Foreign currency translation gain (loss)					(102,522)	(47,790)		(150,312)
Balance (in shares) at Jun. 30, 2016		2,372,527
Balance at Jun. 30, 2016		$ 593,131	4,956,171	23,070,354	(1,760)	(1,244,777)		27,373,119
Balance (in shares) at Mar. 31, 2017		2,042,789
Balance at Mar. 31, 2017		$ 510,696	4,205,536	18,461,347	(212,047)	(803,138)	[1]	22,162,394	[2]
Net income (loss)								1,229,880
Net change from marketable securities, net of tax					(94,997)			(94,997)
Foreign currency translation gain (loss)					135,634	(845)	[1]	134,789
Net income*	[1]			968,389		18,239		986,628
Redeemable non-controlling interest			(25,000)					(25,000)
Balance (in shares) at Jun. 30, 2017		2,042,789
Balance at Jun. 30, 2017		$ 510,696	$ 4,180,536	$ 19,429,736	$ (171,410)	$ (785,744)	[1]	$ 23,163,814

[1] Excludes amount attributable to redeemable non-controlling interest in Contrail Aviation.

[2] Derived from audited consolidated financial statements