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Note 7 - Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Deferred compensation plan	$ 4,655	$ 5,150
Foreign currency forward contracts	76
Total financial assets	4,731
Foreign currency forward contracts	(261)	(138)
Fair Value, Inputs, Level 1 [Member]
Deferred compensation plan	4,018	4,268
Foreign currency forward contracts	0
Total financial assets	4,018
Foreign currency forward contracts	0	0
Fair Value, Inputs, Level 2 [Member]
Deferred compensation plan	637	882
Foreign currency forward contracts	76
Total financial assets	713
Foreign currency forward contracts	(261)	(138)
Fair Value, Inputs, Level 3 [Member]
Deferred compensation plan	0	0
Foreign currency forward contracts	0
Total financial assets	0
Foreign currency forward contracts	$ 0	$ 0

X

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
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X

- Definition

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

+ References

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-Topic 210
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-Section S99
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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