Note 1 - Summary of Significant Accounting Policies (As Restated) (Tables)

12 Months Ended

Mar. 31, 2016

Notes Tables

Schedule of Finite-Lived Intangible Asset Useful Lives [Table Text Block]

	Years
Tradenames		5
Patents		9

Schedule of Product Warranty Liability [Table Text Block]

	Year Ended March 31,
	2016			2015
Beginning Balance	$	231,803		$	242,000
Amounts charged to expense		140,768			169,683
Actual warranty costs paid		(166,916	)		(179,880	)
Delphax acquisition		60,800			-
Ending Balance	$	266,455		$	231,803