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Note 11 - Notes Payable and Long-term Debt (Details Textual) $ in Thousands | May 24, 2024 USD ($) | Jun. 07, 2022 USD ($) | May 24, 2019 USD ($) | Mar. 31, 2025 USD ($) | Dec. 31, 2024 USD ($) | May 24, 2024 CNY (¥) | Mar. 31, 2024 USD ($) | Jun. 07, 2022 CNY (¥) | May 24, 2019 CNY (¥)
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Debt Instrument, Unused Borrowing Capacity, Amount |  |  |  | $ 29,400 | $ 24,800 |  |  |  |
Cash Collateral for Borrowed Securities |  |  |  | 12,200 | $ 8,500 |  |  |  |
SPD Bank [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  | 24,300 |  |  | $ 24,300 |  |
SPD Bank [Member] | Global Technology, Inc. [Member] | Revolving Credit Facility [Member] | The SPD Credit Line [Member] |  |  |  |  |  |  |  |  |
Debt Instrument, Term (Year) |  |  | 5 years |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | $ 25,400 |  |  |  |  |  | ¥ 180,000,000
SPD Bank [Member] | Global Technology, Inc. [Member] | Revolving Credit Facility [Member] | Renewed SPD Credit Line [Member] |  |  |  |  |  |  |  |  |
Debt Instrument, Term (Year) | 5 years |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 23,900 |  |  |  |  | ¥ 170,000,000 |  |  |
Long-Term Line of Credit |  |  |  | 13,500 |  |  |  |  |
Bank Acceptances Executed |  |  |  | 0 |  |  |  |  |
China Zheshang Bank Co., Ltd [Member] | Revolving Credit Facility [Member] | The ¥200M Credit Facility [Member] |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  | 28,500 |  |  | $ 28,500 |  |
China Zheshang Bank Co., Ltd [Member] | Global Technology, Inc. [Member] | Revolving Credit Facility [Member] | The ¥50M Credit Facility [Member] |  |  |  |  |  |  |  |  |
Debt Instrument, Term (Year) |  | 5 years |  |  |  |  |  |  |
China Zheshang Bank Co., Ltd [Member] | Global Technology, Inc. [Member] | Revolving Credit Facility [Member] | The ¥200M Credit Facility [Member] |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | $ 29,900 |  |  |  |  |  | ¥ 200,000,000 |
Long-Term Line of Credit |  |  |  | 8,600 |  |  |  |  |
Bank Acceptances Executed |  |  |  | $ 24,000 |  |  |  |  |

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- Definition The amount of the financial institution's obligation to pay the holder of the customer's draft which the financial institution has guaranteed (i.e., Banker's Acceptance). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(14)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 + Details
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- Definition Carrying amount as of the balance sheet date of cash collateral held for borrowed securities, for which the cash is restricted as to withdrawal or usage. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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- Definition Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481544/470-10-50-6 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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