Note 11 - Accumulated Other Comprehensive Loss - Summary of Accumulated Other Comprehensive Loss (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance	$ (6,816)
Foreign currency translation	(3,389)
Reclassification to operations	0
Pension amortization	0
Balance	(10,205)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Balance	(3,871)
Foreign currency translation	0
Reclassification to operations	0
Pension amortization	(312)
Balance	(4,183)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Balance	(10,687)
Foreign currency translation	(3,389)
Reclassification to operations	0
Pension amortization	(312)
Balance	(14,388)
AOCI Attributable to Noncontrolling Interest [Member]
Balance	(3,887)
Foreign currency translation	0
Reclassification to operations	0
Pension amortization	(374)
Balance	(4,261)
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
Balance	(14,574)
Foreign currency translation	(3,389)
Reclassification to operations	0
Pension amortization	(686)
Balance	$ (18,649)