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Note 9 - Variable Interest Entities - Revenue and Expenses of Delphax Included in the Company's Consolidated Statements of Operations (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2017
Mar. 31, 2016
Revenues $ 43,687,000 $ 35,769,000 $ 38,523,000 $ 30,493,000 $ 34,581,000 $ 46,619,000 $ 44,654,000 $ 22,359,000 $ 148,471,659 $ 148,211,938
General and administrative                 22,180,477 18,139,830
Research and Development Expense                 1,042,496 777,942
Depreciation, amortization and impairment                 3,181,845 1,257,207
                151,572,432 142,180,275
Operating loss $ 1,311,000 $ 1,639,000 $ 1,022,000 $ (7,073,000) $ (2,314,000) $ 3,890,000 $ 5,505,000 $ (1,049,000) (3,100,773) 6,031,663
Non-operating expense, net                 (1,118,413) 121,746
Loss before income taxes                 (4,219,186) 6,153,409
Income taxes                 725,000 2,395,452
Net loss                 (4,944,186) 3,757,957
Delphax [Member]                    
Revenues                 9,809,997 3,954,797
Cost of sales                 10,090,073 3,611,024
General and administrative                 2,876,132 1,218,564
Research and Development Expense                 1,042,496 777,942
Depreciation, amortization and impairment                 1,738,819 313,893
                15,747,520 5,921,423
Operating loss                 (5,937,523) (1,966,626)
Non-operating expense, net                 (361,098) (21,111)
Loss before income taxes                 (6,298,621) (1,987,737)
Income taxes                
Net loss                 $ (6,298,621) $ (1,987,737)