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Note 9 - Variable Interest Entities (Details Textual) - USD ($) | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Mar. 31, 2016 | Mar. 31, 2017 | Nov. 24, 2016
Short-term Debt | $ 2,225,000 |  |  | $ 25,000 | [1] |
Goodwill | $ 4,417,605 |  |  | 4,417,605 | [1] |
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 | 3.40% | 33.00% |  |  |  |
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 |  |  |
Delphax [Member] | Senior Subordinated Note [Member] |  |  |  |  |  |
Short-term Debt | $ 3,020,000 |  |  | 2,889,000 |  |
Delphax [Member] | Senior Subordinated Note [Member] | Short-term Debt [Member] |  |  |  |  |  |
Interest Payable, Current | 520,000 |  |  | 388,000 |  |
Delphax [Member] | Delphax Senior Credit Agreement [Member] |  |  |  |  |  |
Short-term Debt | 1,541,000 |  |  |  |  |
Delphax [Member] | Delphax Senior Debt [Member] |  |  |  |  |  |
Short-term Debt | 215,000 |  |  | $ 112,000 |  |
Delphax [Member] | Senior Subordinated Note and Delphax Senior Debt Credit Agreement [Member] | Nonoperating Income (Expense) [Member] |  |  |  |  |  |
Interest Expense | $ 132,000 | $ 55,000 |  |  |  |
[1] | Derived from audited consolidated financial statements

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