Note 9 - Variable Interest Entities (Details Textual) - USD ($)	3 Months Ended	12 Months Ended
	Jun. 30, 2016	Mar. 31, 2016
Delphax [Member] | Long-lived Tangible Assets [Member]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	$ 249,000
Delphax [Member]
Loan Due from Variable Interest Entity, Accrued Interest	132,000	$ 76,000
Amortization of Finite Lived Intangible Assets and Impairment of Goodwill	1,385,000
Severance Costs	5,610,000
Goodwill	375,000
Goodwill, Impairment Loss	275,000	100,000
Goodwill		$ 275,408