Condensed Consolidated Statements of Stockholders' 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, 2014	2,355,027
Balance at Mar. 31, 2014	$ 588,756	$ 4,855,093	$ 21,923,988	$ (7,780)		$ 27,360,057
Net income			3,339,551			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		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)		29,795,223	[1]
Net income			6,029,260		$ (525,140)	5,504,120
Unrealized gain from marketable securities, net of tax				109,230		$ 109,230
Exercise of stock options (in shares)						0
Balance (in shares) at Dec. 31, 2015	2,372,527
Balance at Dec. 31, 2015	$ 593,131	4,936,518	$ 30,437,175	(32,683)	1,176,860	$ 37,111,001	[2]
Initial consolidation of Delphax					1,713,000	1,713,000
Foreign currency translation				$ (7,000)	$ (11,000)	(18,000)
Funding on residual sharing agreements		$ 7,428				$ 7,428

[1] Derived from audited financial statements

[2] Includes VIE assets of $8,015,000 and VIE liabilities of $3,617,000 - Note 9