Note 1A - Restatement of Previously Issued Consolidated Financial Statements (Details Textual) - USD ($)		3 Months Ended		9 Months Ended
	Nov. 24, 2015	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2015	Mar. 31, 2015	[1]
Stockholders' Equity Attributable to Noncontrolling Interest		$ 1,427,550	$ 1,427,550	$ 1,427,550
Delphax [Member]
Net Income (Loss) Attributable to Noncontrolling Interest, Percentage		33.00%	33.00%	33.00%
Percentage of Consolidated Subsidiaries Dividends Attributable to Parent				67.00%
Percentage of Consolidated Subsidiaries Dividends Attributable to Noncontrolling Interests				33.00%
Percentage of Consolidated Net Income		33.00%	33.00%	33.00%
Stockholders' Equity Attributable to Noncontrolling Interest		$ 0	$ 0	$ 0
Scenario, Previously Reported [Member]
Stockholders' Equity Attributable to Noncontrolling Interest		$ 1,176,860	$ 1,176,860	$ 1,176,860
Scenario, Previously Reported [Member] | Delphax [Member]
Net Income (Loss) Attributable to Noncontrolling Interest, Percentage				62.00%
Delphax [Member]
Payments to Acquire Businesses, Gross	$ 1,050,000
Delphax [Member] | Series B Preferred Stock of Delphax [Member]
Business Combination, Shares Acquired	43,000
Business Combination, Warrants Acquired, Number of Securities Called by Warrants	95,600
Business Combination, Warrants Acquired, Exercise Price Per Share	$ 33.4728
Convertible Preferred Stock, Shares Issued upon Conversion	100
Preferred Stock, Liquidation Preference Per Share	$ 0
Preferred Stock, Dividend Rate, Percentage	0.00%
Business Combination,Shares Acquired, Percentage, of the Shares of Acquired Entity's Common Stock That Would Be Outstanding Assuming Conversion	38.00%
Five Year Senior Subordinated Promissory Note [Member] | Delphax [Member]
Debt Instrument, Face Amount	$ 2,500,000
Delphax 90-Day Senior Subordinated Note [Member] | Delphax [Member]
Debt Instrument, Cancellation, Outstanding Principal Surrendered	$ 500,000

[1] Derived from audited consolidated financial statements