Note 17 - Income Taxes (Details Textual)	12 Months Ended
	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)	Nov. 24, 2015 USD ($)	Sep. 30, 2015 USD ($)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	34.00%	34.00%
Unrecognized Tax Benefits	$ 0	$ 0
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	0	0
Deferred Tax Assets, Valuation Allowance	$ 10,830,000
Delphax [Member] | Canada, France, and United Kingdom [Member]
Number of Foreign Subsidiaries	3
Delphax [Member]
Business Acquisition, Percentage of Voting Interests Acquired			38.00%
Deferred Tax Assets, Valuation Allowance	$ 10,830,000		$ 10,273,000
Delphax [Member] | Foreign Tax Authority [Member]
Operating Loss Carryforwards				$ 6,000,000
Delphax [Member] | Domestic Tax Authority [Member]
Operating Loss Carryforwards				7,900,000
Delphax [Member] | Domestic Tax Authority [Member] | Research Tax Credit Carryforward [Member]
Tax Credit Carryforward, Amount				4,500,000
Delphax [Member] | Domestic Tax Authority [Member] | Alternative Minimum Tax Credit Carryforward [Member]
Tax Credit Carryforward, Amount				$ 325,000