Note 16 - Subsequent Events (Details Textual) - USD ($)	Jan. 06, 2017	Nov. 28, 2016	Jan. 05, 2017
Insignia [Member]
Common Stock, Dividends, Per Share, Declared		$ 0.70
Subsequent Event [Member] | Insignia [Member]
Proceeds from Dividends Received	$ 1,200,000
Subsequent Event [Member] | Senior Notes [Member] | Delphax Canada [Member]
Debt Instrument, Interest Rate, Stated Percentage	18.00%		10.50%
Line of Credit Facility, Forbearance Fee Amount	$ 141,000
Subsequent Event [Member] | Delphax [Member]
Repayments of Long-term Lines of Credit	1,260,000
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,500,000		$ 7,000,000
Line of Credit Facility, Maximum Borrowing Capacity, Percentage of Purchase Orders from Customers	100.00%
Line of Credit Facility, Maximum Borrowing Capacity, Maximum Value of Purchase Orders Included in Borrowing Base	$ 500,000
Line of Credit Facility, Interest Rate at Period End	2.50%
Subsequent Event [Member] | Delphax [Member] | Upon Execution of the Amendment [Member]
Line of Credit Facility, Commitment Fee Amount	$ 25,000
Subsequent Event [Member] | Delphax [Member] | Upon Repayment in Full of All Loans Under the Senior Credit Agreement [Member]
Line of Credit Facility, Commitment Fee Amount	$ 50,000