Note 12 - Variable Interest Entities - Carrying Values of Assets and Liabilities of Delphax Included on the Company's Consolidated Balance Sheet (Details) - USD ($)		Jun. 30, 2018	Mar. 31, 2018
Cash and cash equivalents	[1]	$ 5,746,521	$ 4,803,238	[2]
Accounts receivable, net	[1]	19,120,159	15,157,855	[2]
Prepaid expenses and other	[1]	1,147,368	1,455,566	[2]
Total current assets		60,059,453	61,671,108	[2]
Total assets		97,114,952	97,146,886	[2]
Accounts payable	[1]	14,887,263	10,181,143	[2]
Income tax payable	[1]	23,000	23,000	[2]
Accrued expenses	[1]	10,418,865	11,743,973	[2]
Short-term Debt, Total		9,544,732	9,229,690	[2]
Total current liabilities		34,873,860	31,177,806	[2]
Total liabilities		67,596,210	70,910,863	[2]
Delphax [Member] | Reportable Legal Entities [Member]
Cash and cash equivalents		371,831	241,430
Accounts receivable, net		41,150	316,542
Prepaid expenses and other		58,898	72,269
Total current assets		471,879	630,241
Other tax receivables-long-term		311,000	311,000
Total assets		782,879	941,241
Accounts payable		2,160,817	2,145,847
Income tax payable		11,312	11,312
Accrued expenses		3,180,724	3,244,514
Short-term Debt, Total		1,766,949	1,788,285
Total current liabilities		7,119,802	7,189,958
Total liabilities		7,119,802	7,189,958
Net Assets		$ (6,336,923)	$ (6,248,717)

[1] Amounts related to Delphax as of June 30, 2018 and March 31, 2018, respectively.

[2] Derived from audited consolidated financial statements