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Financial Instruments (Details Textual) - Mar. 31, 2017 CAD in Millions, $ in Millions	USD ($)	CAD	AUD	EUR (€)
Foreign Exchange Contract [Member]
Financial Instruments [Line Items]
Foreign Exchange Contracts Outstanding			AUD 880,000	€ 625,000
Foreign Exchange Contracts, Australian [Member]
Financial Instruments [Line Items]
Foreign Exchange Contracts Outstanding	$ 2.9		AUD 3,700,000
Foreign Exchange Contracts, Canadian [Member]
Financial Instruments [Line Items]
Foreign Exchange Contracts Outstanding	$ 3.0	CAD 4.0

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Foreign exchange contracts outstanding as of balance sheet date.

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