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Note 6 - Fair Value Measurements (Details Textual) - Foreign Exchange Forward [Member] $ in Thousands, $ in Thousands	Oct. 01, 2020 USD ($)	Oct. 01, 2020 CAD ($)	Sep. 30, 2020 CAD ($)
Derivative, Notional Amount			$ 6,955
Payments for Derivative Instrument, Financing Activities	$ 5,281	$ 6,955
Derivative, Gain (Loss) on Derivative, Net, Total	$ (48)

X

- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
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- Definition

The cash outflow for derivative instruments during the period, which are classified as financing activities, excluding those designated as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
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