Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Dec. 31, 2015		Dec. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 5,504,120		$ 3,339,551
Adjustments to reconcile net income to net cash provided by operating activities:
Loss (Gain) on sale of marketable securities	6,837		(8,487)
Gain on sale of property and equipment	(50,837)		(1,054,781)
Change in accounts receivable and inventory reserves	(157,059)		(245,358)
Depreciation and amortization	667,595		660,825
Change in cash surrender value of life insurance	(120,159)		(117,305)
Warranty reserve.	(93,228)		103,065
Compensation expense related to stock options	31,000		8,958
Change in operating assets and liabilities:
Accounts receivable	(3,576,456)		(3,146,977)
Notes receivable and other non-trade receivables	(137,634)		475,715
Inventories	383,383		4,574,019
Prepaid expenses and other	80,138		214,623
Accounts payable	(565,144)		(27,889)
Accrued expenses	152,974		1,041,090
Income tax payable	897,266		$ 1,257,385
Non-current liabilities	(34,310)
Total adjustments	(2,515,634)		$ 3,734,883
Net cash provided by operating activities	2,988,486		7,074,434
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of marketable securities	(3,278,466)		(4,109,201)
Proceeds from sale of investment securities available for sale	54,958		$ 515,045
Cash inflow from acquisition of Delphax interests	78,000
Capital expenditures	(1,051,055)		$ (1,774,495)
Proceeds from sale of property and equipment	185,830		3,357,810
Net cash used in investing activities	(4,010,733)		(2,010,841)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from line of credit	14,472,273		1,330,888
Payment on line of credit	(19,291,273)		$ (1,330,888)
Payment on Delphax senior credit facility	(3,031,000)
Proceeds from lease funding	$ 7,428
Proceeds from exercise of stock options			$ 124,350
Repurchase of stock options			(130,335)
Net cash used in financing activities	$ (7,842,572)		$ (5,985)
Effect of foreign currency exchange rates on cash and cash equivalents	(12,985)
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(8,877,804)		$ 5,057,608
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	14,165,120	[1]	3,758,888
CASH AND CASH EQUIVALENTS AT END OF PERIOD	5,287,316	[2]	8,816,496
SUPPLEMENTAL SCHEDULE OF NON-CASH INVESTING ACTIVITIES:
Finished goods inventory transferred to equipment leased to customers	1,288,474		1,132,115
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Interest	56,546		19,152
Income taxes	$ 1,966,881		$ 240,618

[1] Derived from audited financial statements

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