Note 14 - Other Income and Expense - Other Income and Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Foreign exchange transaction gain (loss)	$ (1)	$ (271)	$ 217	$ (18)
Government subsidy income	826	847	980	1,828
Other non-operating gain	171	296	205	301
Loan forgiveness	0	0	6,229	(0)
Gain (loss) on disposal of assets	2	(6)	(3)	(15)
Total other income, net	$ 998	$ 866	$ 7,628	$ 2,096