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Note 9 - Variable Interest Entities (Details Textual) - USD ($) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2016 | Mar. 31, 2017 | Mar. 31, 2016 | Nov. 24, 2016
Short-term Debt |  | $ 25,000 | $ 1,859,300 |
Goodwill |  | $ 4,417,605 | 275,408 |
Goodwill, Impairment Loss | $ 275,000 |  | $ 100,000 |
Delphax [Member] |  |  |  |
Percentage of Consolidated Subsidiaries Dividends Attributable to Parent |  | 67.00% |  |
Percentage of Consolidated Subsidiaries Dividends Attributable to Noncontrolling Interests |  | 33.00% |  |
Net Income (Loss) Attributable to Noncontrolling Interest, Percentage |  | 33.00% | 30.00% |
Trade Names and Patents [Member] |  |  |  |
Impairment of Intangible Assets, Finite-lived |  | $ 1,110,000 | $ 50,000 |
Delphax [Member] |  |  |  |
Goodwill |  |  |  | $ 375,000
Goodwill, Impairment Loss | 275,000 |  | 100,000 |
Delphax [Member] | Trade Names and Patents [Member] |  |  |  |
Impairment of Intangible Assets, Finite-lived | 1,385,000 |  | 50,000 |
Delphax [Member] |  |  |  |
Severance Costs | 5,610,000 |  |  |
Intangible Assets, Net (Including Goodwill) |  |  | 1,400,000 |
Impairment of Intangible Assets, Finite-lived | $ 1,385,000 |  |  |
Delphax [Member] | Senior Subordinated Note [Member] |  |  |  |
Short-term Debt |  | 2,889,000 | 2,576,000 |
Delphax [Member] | Senior Subordinated Note [Member] | Short-term Debt [Member] |  |  |  |
Interest Payable, Current |  | 388,000 | 76,000 |
Delphax [Member] | Delphax Senior Credit Agreement [Member] |  |  |  |
Short-term Debt |  | 1,873,000 |  |
Delphax [Member] | Delphax Senior Debt [Member] |  |  |  |
Short-term Debt |  | 112,000 |  |
Delphax [Member] | Senior Subordinated Note and Delphax Senior Debt Credit Agreement [Member] | Nonoperating Income (Expense) [Member] |  |  |  |
Interest Expense |  | $ 424,000 | $ 76,000 |

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