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Note 6 - Restructuring and Other Exit Costs - Activity for Accrued Restructuring Liability (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Mar. 31, 2020
Balance	$ 592	$ 368
Restructuring charges	748	874
Adjustments		(45)
Cash payments	(557)	(605)
Non-cash portion	(168)
Balance	615	592
Employee Severance [Member]
Balance	584	364
Restructuring charges	562	834
Adjustments		(45)
Cash payments	(531)	(569)
Non-cash portion	0
Balance	615	584
Other Restructuring [Member]
Balance	8	4
Restructuring charges	186	40
Adjustments		0
Cash payments	(26)	(36)
Non-cash portion	(168)
Balance	$ 0	$ 8

X

- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
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-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3367-108585

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X

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

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Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.

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Amount of decrease in the reserve for full or partial settlement through consideration other than cash.

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