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Note O - Restructuring Activities (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Restructuring Charges, Total	$ 1,744	$ 5,219	$ 3,942	$ 6,585
Restructuring and Related Cost, Expected Cost, Total	26,800		26,800
Restructuring and Related Cost, Cost Incurred to Date	25,100		25,100
Restructuring and Related Cost, Expected Cost Remaining	1,700		1,700
Employee Severance [Member]
Restructuring Charges, Total	1,209	997	1,413	1,411
Facility Closing [Member]
Restructuring Charges, Total	539	436	2,229	1,060
Lease Impairment and Termination Charges [Member]
Restructuring Charges, Total	0	2,626	294	2,974
Capital Losses from Asset Disposal [Member]
Restructuring Charges, Total	$ (4)	$ 1,160	$ 6	$ 1,140

X

- Definition

Amount of costs incurred to date for the specified restructuring cost.

+ References

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Amount expected to be recognized in earnings for the specified restructuring cost.

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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.

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