Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Sep. 30, 2016		Sep. 30, 2015
Delphax [Member]
CASH FLOWS FROM FINANCING ACTIVITIES:
Payment on line of credit	$ (48,950)
Contrail Aviation Inc. [Member]
SUPPLEMENTAL DISCLOSURE OF INVESTING ACTIVITIES:
Acquired business earnout contract	2,900,000
Net income (loss)	(6,909,566)		3,057,920
Gain on sale of marketable securities	(572,945)
Gain on sale of property and equipment			5,381
Change in accounts receivable and inventory reserves	2,483,947		(61,616)
Depreciation, amortization and impairment	2,343,273		371,121
Change in cash surrender value of life insurance	(12,373)		(14,575)
Warranty reserve.	(28,250)		(82,995)
Other-than-temporary impairment loss on investments	1,502,239
Accounts receivable	(8,362,763)		(8,327,227)
Notes receivable and other non-trade receivables	(1,560,740)		111,274
Inventories	(6,084,943)		(3,212,440)
Prepaid expenses and other assets	487,462		115,057
Accounts payable	3,004,536		3,017,840
Accrued expenses	797,290		(58,762)
Income taxes payable/ receivable	(397,331)		1,098,013
Non-current liabilities	(442,874)
Total adjustments	(6,843,472)		(7,038,927)
Net cash used in operating activities	(13,753,038)		(3,981,007)
Purchases of marketable securities	(2,505,520)		(1,863,621)
Proceeds from sale of marketable securities	5,254,087
Net cash flow from business combination	(4,033,367)
Capital expenditures	(911,040)		(513,433)
Proceeds from sale of property and equipment	10,745		19,163
Increase in restricted cash	(3,411)		(3,316)
Net cash used in investing activities	(2,188,506)		(2,361,207)
Proceeds from line of credit	40,368,017		14,291,273
Payment on line of credit	(19,606,842)		(17,909,633)
Repurchase of common stock	(7,917,009)
Net cash provided by (used in) financing activities	12,795,216		(3,618,360)
Effect of foreign currency exchange rates on cash and cash equivalents	(7,387)
NET DECREASE IN CASH AND CASH EQUIVALENTS	(3,153,715)		(9,960,574)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	5,345,455	[1]	13,388,767
CASH AND CASH EQUIVALENTS AT END OF PERIOD	2,191,740		3,428,193
Finished goods inventory transferred to equipment leased to customers	321,345		1,143,635
Change in fair value of marketable securities	(1,022,791)		(866,430)
Non-controlling interest in acquired business	1,072,161
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Interest	61,767		45,118
Income taxes	$ 400,331		$ 267,134

[1] Derived from audited consolidated financial statements.