Note 11 - Variable Interest Entities - Carrying Values of Assets and Liabilities of Delphax Included on the Company's Consolidated Balance Sheet (Details) - USD ($)	Sep. 30, 2016	Mar. 31, 2016		Sep. 30, 2015	Mar. 31, 2015
Delphax [Member] | Reportable Legal Entities [Member]
Cash and cash equivalents	$ 166,593	$ 249,528
Accounts receivable, net	1,384,514	1,433,494
Inventories	2,474,463	4,642,298
Other current assets	444,868	1,034,067
Total current assets	4,470,438	7,359,387
Property and equipment	20,553	625,684
Intangible assets		1,109,112
Goodwill		275,408
Other Assets		26,020
Total assets	4,490,991	9,395,611
Accounts payable	2,563,403	1,684,802
Income tax payable	11,312	11,312
Accrued expenses	3,867,376	1,926,340
Short-term debt	1,815,185	1,859,300
Total current liabilities	8,257,276	5,481,754
Long-term debt	2,689,619	2,581,107
Other long-term liabilities		606,358
Total liabilities	10,946,895	8,669,219
Net Assets	(6,455,904)	726,392
Cash and cash equivalents	2,191,740	5,345,455	[1]	$ 3,428,193	$ 13,388,767
Accounts receivable, net	21,932,218	12,303,128
Inventories	17,667,401	12,274,104
Other current assets	1,172,972	1,668,004
Total current assets	49,749,408	38,959,534
Property and equipment	4,899,771	4,577,774
Goodwill	3,986,865	275,408
Other Assets	385,559	317,528
Total assets	65,931,550	52,154,752
Accounts payable	10,409,771	7,003,660
Income tax payable		11,312
Accrued expenses	7,829,588	6,842,874
Short-term debt	1,815,185	1,859,300
Total current liabilities	20,054,544	15,717,146
Long-term debt	20,761,175	4,835
Other long-term liabilities	2,933,347	615,241
Total liabilities	$ 44,295,066	$ 16,883,222

[1] Derived from audited consolidated financial statements.