Note 11 - Notes Payable and Long-term Debt - Schedule of Notes Payable and Long-term Debt (Details) (Parentheticals) - Revolving Credit Facility [Member] - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022	Nov. 16, 2022
CIT Northbridge Credit, LLC [Member] \| Loan Security and Guarantee Agreement [Member]
Long-term debt, maximum	$ 27,780	$ 27,780	$ 27,780
Long-term debt, interest	9.663%	9.663%
Long-term debt, start maturity date	Dec. 14, 2023	Dec. 14, 2023
Long-term debt, end maturity date	Nov. 16, 2025	Nov. 16, 2025
SPD Bank [Member]
Long-term debt, maximum	$ 19,037	$ 19,037
Long-term debt, maturity date	May 24, 2024	May 24, 2024
SPD Bank [Member] \| Minimum [Member]
Long-term debt, interest	4.57%	4.57%
SPD Bank [Member] \| Maximum [Member]
Long-term debt, interest	6.12%	6.12%
China Zheshang Bank Co., Ltd [Member] \| The ¥100M Credit Facility [Member]
Long-term debt, maximum	$ 26,651	$ 26,651
Long-term debt, maturity date	Jun. 06, 2027	Jun. 06, 2027
China Zheshang Bank Co., Ltd [Member] \| The ¥100M Credit Facility [Member] \| Minimum [Member]
Long-term debt, interest	4.45%	4.45%
China Zheshang Bank Co., Ltd [Member] \| The ¥100M Credit Facility [Member] \| Maximum [Member]
Long-term debt, interest	6.60%	6.60%
China Zheshang Bank Co., Ltd [Member] \| The ¥50M Credit Facility [Member]
Long-term debt, maximum	$ 728
Long-term debt, interest	2.70%
Long-term debt, maturity date	Nov. 23, 2023

Contractual interest rate for funds borrowed, under the debt agreement.

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Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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