Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)		3 Months Ended
		Jun. 30, 2016		Jun. 30, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss		$ (7,989,380)		$ (736,040)
Adjustments to reconcile net loss to net cash used in operating activities:
Gain on sale of marketable securities		(143,869)
Gain on sale of property and equipment				(5,024)
Change in accounts receivable and inventory reserves		2,348,788		9,528
Depreciation, amortization and impairment		1,989,601		178,617
Change in cash surrender value of life insurance		(18,571)		(20,146)
Deferred income taxes
Warranty reserve		39,001		(22,440)
Other-than-temporary impairment loss on investments		1,502,239
Change in operating assets and liabilities:
Accounts receivable		1,117,413		(774,712)
Notes receivable		(406,552)		257,385
Inventories		(5,704,755)		(3,729,103)
Prepaid expenses and other assets		534,759		211,559
Accounts payable		1,864,793		639,787
Accrued expenses		744,233		78,301
Income taxes payable/receivable		(428,132)		(602,588)
Non-current liabilities		(207,494)
Total adjustments		3,231,454		(3,778,836)
Net cash used in operating activities		(4,757,926)		(4,514,876)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of marketable securities		(924,623)		(1,070,456)
Proceeds from sale of marketable securities		1,215,105
Proceeds from sale of property and equipment				19,163
Capital expenditures		(519,569)		(219,496)
Increase in restricted cash		(3,411)		(3,316)
Net cash used in investing activities		(232,498)		(1,274,105)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from line of credit		12,047,913
Payments on line of credit		(8,727,210)		(18,704)
Net cash provided by (used in) financing activities		3,634,395		(18,704)
Effect of foreign currency exchange rates on cash and cash equivalents		(19,450)
NET DECREASE IN CASH AND CASH EQUIVALENTS		(1,375,479)		(5,807,685)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD		5,345,455	[1]	13,388,767
CASH AND CASH EQUIVALENTS AT END OF PERIOD		3,969,976		7,581,082
SUPPLEMENTAL SCHEDULE OF NON-CASH INVESTING ACTIVITIES:
Finished goods inventory transferred to equipment leased to customers		321,345
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Interest		2,319		20,497
Income taxes		56,133		269,701
Delphax [Member]
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from line of credit		313,692
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	[2],[3]	249,528
CASH AND CASH EQUIVALENTS AT END OF PERIOD	[2]	$ 495,668

[1] Derived from audited financial statements

[2] Amounts related to Delphax as of June 30, 2016 and March 31, 2016, respectively

[3] Derived from audited financial statements