Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Note 11 - Segment Information (Details Textual)	9 Months Ended
Note 11 - Segment Information (Details Textual)	Dec. 31, 2017	Dec. 31, 2016	Oct. 03, 2016	Nov. 24, 2015
Number of Operating Segments	7
Jet Yard, LLC [Member]
Business Acquisition, Percentage of Voting Interests Acquired			100.00%
Delphax [Member]
Business Acquisition, Percentage of Voting Interests Acquired				38.00%
Number of Elan Printers Sold		2