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Note 9 - Variable Interest Entities (Details Textual) - USD ($)	3 Months Ended	12 Months Ended
	Jun. 30, 2016	Mar. 31, 2017	Mar. 31, 2016	Nov. 24, 2016
Short-term Debt		$ 25,000	$ 1,859,300
Goodwill		$ 4,417,605	275,408
Goodwill, Impairment Loss	$ 275,000		$ 100,000
Delphax [Member]
Percentage of Consolidated Subsidiaries Dividends Attributable to Parent		67.00%
Percentage of Consolidated Subsidiaries Dividends Attributable to Noncontrolling Interests		33.00%
Net Income (Loss) Attributable to Noncontrolling Interest, Percentage		33.00%	30.00%
Trade Names and Patents [Member]
Impairment of Intangible Assets, Finite-lived		$ 1,110,000	$ 50,000
Delphax [Member]
Goodwill				$ 375,000
Goodwill, Impairment Loss	275,000		100,000
Delphax [Member] | Trade Names and Patents [Member]
Impairment of Intangible Assets, Finite-lived	1,385,000		50,000
Delphax [Member]
Severance Costs	5,610,000
Intangible Assets, Net (Including Goodwill)			1,400,000
Impairment of Intangible Assets, Finite-lived	$ 1,385,000
Delphax [Member] | Senior Subordinated Note [Member]
Short-term Debt		2,889,000	2,576,000
Delphax [Member] | Senior Subordinated Note [Member] | Short-term Debt [Member]
Interest Payable, Current		388,000	76,000
Delphax [Member] | Delphax Senior Credit Agreement [Member]
Short-term Debt		1,873,000
Delphax [Member] | Delphax Senior Debt [Member]
Short-term Debt		112,000
Delphax [Member] | Senior Subordinated Note and Delphax Senior Debt Credit Agreement [Member] | Nonoperating Income (Expense) [Member]
Interest Expense		$ 424,000	$ 76,000

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