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Note 5 - Derivative Instruments and Hedging Activities - Foreign Currency Forward Contracts (Details) $ in Thousands	Jun. 30, 2020 USD ($)
Foreign Exchange Forward 1 [Member]
Notional amount of U.S. dollars	$ 10,656
Weighted average exchange rate of U.S. dollars	1.3227
Interest rate swap contract designated as a cash flow hedge (net)	$ (273)
Foreign Exchange Forward 2 [Member]
Notional amount of U.S. dollars	$ 9,658
Weighted average exchange rate of U.S. dollars	1.3227
Interest rate swap contract designated as a cash flow hedge (net)	$ (247)
Foreign Exchange Forward 3 [Member]
Notional amount of U.S. dollars	$ 11,124
Weighted average exchange rate of U.S. dollars	1.4283
Foreign Currency forward contracts designated as cash flow hedges (net)	$ 574
Foreign Exchange Forward 4 [Member]
Notional amount of U.S. dollars	$ 9,878
Weighted average exchange rate of U.S. dollars	1.4283
Foreign Currency forward contracts designated as cash flow hedges (net)	$ 507
Foreign Exchange Forward 5 [Member]
Notional amount of U.S. dollars	$ 10,782
Weighted average exchange rate of U.S. dollars	1.4362
Foreign Currency forward contracts designated as cash flow hedges (net)	$ 611
Foreign Exchange Forward 6 [Member]
Notional amount of U.S. dollars	$ 52,098
Weighted average exchange rate of U.S. dollars	1.3888
Foreign Currency forward contracts designated as cash flow hedges (net)	$ 1,172

X

- Definition

Average contractual rate at which a foreign currency can be purchased or sold.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

X

- 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
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959

+ Details

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Period Type:	instant

X

- Definition

Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into.

+ References

No definition available.

+ Details

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- Details

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