Condensed Consolidated Statements of Equity (Unaudited) (As Restated) - 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, 2014	2,355,027
Balance at Mar. 31, 2014	$ 588,756	$ 4,855,093	$ 21,923,988	$ (7,780)		[1]	$ 27,360,057
Net income			3,339,551			[1]	3,339,551
Unrealized gain from marketable securities, net of tax				347,717			$ 347,717
Exercise of stock options (in shares)	15,000						15,000
Exercise of stock options	$ 3,750	120,600					$ 124,350
Compensation expense related to stock options		8,957					8,957
Repurchase of stock options		(130,335)					(130,335)
Balance (in shares) at Dec. 31, 2014	2,370,027
Balance at Dec. 31, 2014	$ 592,506	4,854,315	25,263,539	339,937		[1]	31,050,297
Balance (in shares) at Mar. 31, 2015	2,372,527
Balance at Mar. 31, 2015	$ 593,131	4,929,090	24,407,915	(134,913)		[1]	29,795,223	[2]
Net income			5,783,630		(279,510)		5,504,120
Unrealized gain from marketable securities, net of tax				109,230			$ 109,230
Exercise of stock options (in shares)							0
Initial consolidation of Delphax					1,713,000		$ 1,713,000
Foreign currency translation				(12,060)	(5,940)		(18,000)
Funding on residual sharing agreements		7,428					7,428
Balance (in shares) at Dec. 31, 2015	2,372,527
Balance at Dec. 31, 2015	$ 593,131	$ 4,936,518	$ 30,191,545	$ (37,743)	$ 1,427,550	[1]	$ 37,111,001

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

[2] Derived from audited consolidated financial statements