Note 14 - Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss by Component (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Balance		$ 304,490	$ 225,995	$ 262,346	$ 208,743
Other comprehensive loss		(2,514)	(6,242)	(2,824)	(10,120)
Balance		321,411	236,033	321,411	236,033
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance				(23,107)
Other comprehensive (loss) income before reclassifications				(3,054)
Amount reclassified from accumulated other comprehensive loss				197
Other comprehensive loss				(2,857)
Balance		(25,964)		(25,964)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Balance				5,539
Other comprehensive (loss) income before reclassifications				1,641
Amount reclassified from accumulated other comprehensive loss				(1,650)
Other comprehensive loss				(9)
Balance		5,530		5,530
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Balance				18
Other comprehensive (loss) income before reclassifications				1
Amount reclassified from accumulated other comprehensive loss				0
Other comprehensive loss				1
Balance		19		19
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Balance				1,004
Other comprehensive (loss) income before reclassifications				0
Amount reclassified from accumulated other comprehensive loss	[1]			41
Other comprehensive loss				41
Balance		1,045		1,045
AOCI Attributable to Parent [Member]
Balance		(16,856)	(22,741)	(16,546)	(18,863)
Other comprehensive (loss) income before reclassifications				(1,412)
Amount reclassified from accumulated other comprehensive loss				(1,412)
Other comprehensive loss				(2,824)
Balance		$ (19,370)	$ (28,983)	$ (19,370)	$ (28,983)

[1] This reclassification relates to the amortization of prior service costs and gains/losses associated with the Company's SERP Plan. This expense is reflected in other income (expense), net on the accompanying condensed consolidated statements of operations.