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Note 13 - Commitments and Contingencies (Details Textual) |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 15, 2014 USD ($) | Nov. 06, 2013 USD ($) | Oct. 31, 2015 USD ($) | Nov. 30, 2014 USD ($) | Dec. 31, 2016 USD ($) | Mar. 31, 2017 USD ($) | Mar. 31, 2016 USD ($) | Mar. 31, 2015 USD ($) | Oct. 15, 2014 CAD | Mar. 31, 2014 USD ($) | Mar. 31, 2013 USD ($)
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability |  |  |  |  |  | $ (9,554,000) | $ (2,058,000) |  |  |  |
Business Combination, Contingent Consideration, Liability |  |  |  |  |  | 116,000 | 4,430,000 |  |  |  |
Number of States Due Sales Tax |  |  |  |  |  |  |  |  |  |  | 1
Anthony Amato and Amega Scientific Corporation [Member] |  |  |  |  |  |  |  |  |  |  |
Loss Contingency Expected Immeditate Accelaration of Stock Option Granted |  |  |  | $ 10,000 |  |  |  |  |  |  |
Loss Contingency, Damages Sought, Value |  |  |  | 10,000,000 |  |  |  |  |  |  |
Payments for Legal Settlements |  |  | $ 3,165,000 |  |  |  |  |  |  |  |
Litigation Settlement, Insurance Covered |  |  | 415,000 |  |  |  |  |  |  |  |
Loss Contingency Accrual |  |  | $ 1,041,000 |  |  |  |  |  |  |  |
Anthony Amato and Amega Scientific Corporation [Member] | Improperly with holding Amount [Member] |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Sought, Value |  |  |  | 704,065.86 |  |  |  |  |  |  |
General and Administrative Expense [Member] | Other Accrued Expenses [Member] |  |  |  |  |  |  |  |  |  |  |
Sales and Excise Tax Payable |  |  |  |  |  |  |  | $ 460,000 |  | $ 1,408,000 | $ 100,000
General and Administrative Expense [Member] | Anthony Amato and Amega Scientific Corporation [Member] |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) Related to Litigation Settlement |  |  |  |  |  |  | 1,709,000 |  |  |  |
Minimum [Member] | Anthony Amato and Amega Scientific Corporation [Member] | Lost Future Earnings and Punitive Damages [Member] |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Sought, Value |  |  |  | $ 500,000 |  |  |  |  |  |  |
PCD [Member] |  |  |  |  |  |  |  |  |  |  |
Business Combination, Payment of Contingent Consideration |  |  |  |  |  |  | $ 150,000 |  |  |  |
Business Acquisition, Earn Out Period for Determination of Contingent Consideration | 3 years |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low | CAD |  |  |  |  |  |  |  |  | CAD 0 |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High | $ 1,500,000 |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability | 300,000 |  |  |  |  |  |  |  |  |  |
PCD [Member] | Other Expense, Net [Member] |  |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability |  |  |  |  | $ 450,000 | $ 450,000 |  |  |  |  |
PCD [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Revenue Required in Three Years Subsequent to Acquisition for Payment of Contingent Consideration | 9,900,000 |  |  |  |  |  |  |  |  |  |
PCD [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Revenue Required in Three Years Subsequent to Acquisition for Payment of Contingent Consideration | $ 12,600,000 |  |  |  |  |  |  |  |  |  |
Amega Scientific Corporation [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Earn Out Period for Determination of Contingent Consideration |  | 3 years |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low |  | $ 0 |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High |  | 10,000,000 |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability |  | $ 500,000 |  |  |  |  |  |  |  |  |
Business Acquisition, Agreement Holdback, Payment Period from Effective Date Less Any Losses Incurred by Buyer Payable To Seller |  | 3 years |  |  |  |  |  |  |  |  |
Amega Scientific Corporation [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Revenue Required in Three Years Subsequent to Acquisition for Payment of Contingent Consideration |  | $ 31,625,000 |  |  |  |  |  |  |  |  |
Amega Scientific Corporation [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Revenue Required in Three Years Subsequent to Acquisition for Payment of Contingent Consideration |  | $ 43,500,000 |  |  |  |  |  |  |  |  |

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