Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (b)
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
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-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Latest date the outstanding debt instruments are required to be repaid, in YYYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Period Type:	duration

- Definition

Earliest date the outstanding debt instruments are required to be repaid, in YYYY-MM-DD format.

+ References

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Note K - Notes Payable and Long-term Debt - Schedule of Notes Payable and Long-term Debt (Details) (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Nov. 16, 2022	Sep. 28, 2017
Chailease Finance Co, Ltd. [Member] \| Promissory Note [Member]
Long-term debt, maturity date		Jan. 21, 2022
Long-term debt, interest		3.10%
Truist Bank [Member] \| Revolving Credit Facility [Member]
Long-term debt, maximum				$ 20,000
Truist Bank [Member] \| Revolving Credit Facility [Member] \| Fouth Amendment to Loan Agreement with Truist Bank [Member]
Long-term debt, maximum		$ 20,000
Long-term debt, interest		4.063%
Long-term debt, maturity date		Nov. 16, 2022
CIT Northbridge Credit, LLC [Member] \| Revolving Credit Facility [Member] \| Loan Security and Guarantee Agreement [Member]
Long-term debt, maximum	$ 27,800		$ 27,780
Long-term debt, interest	8.984%
Long-term debt, start maturity date	Dec. 14, 2023
Long-term debt, end maturity date	Nov. 16, 2025
SPD Bank [Member] \| Revolving Credit Facility [Member]
Long-term debt, maximum	$ 19,902	$ 19,902
Long-term debt, maturity date	May 24, 2024	May 24, 2024
SPD Bank [Member] \| Revolving Credit Facility [Member] \| Minimum [Member]
Long-term debt, interest	2.95%	2.95%
SPD Bank [Member] \| Revolving Credit Facility [Member] \| Maximum [Member]
Long-term debt, interest	4.57%	4.57%
China Zheshang Bank Co., Ltd [Member] \| Revolving Credit Facility [Member] \| The ¥100M Credit Facility [Member]
Long-term debt, maximum	$ 26,636	$ 26,636
Long-term debt, maturity date	Jun. 07, 2027	Jun. 07, 2027
China Zheshang Bank Co., Ltd [Member] \| Revolving Credit Facility [Member] \| The ¥100M Credit Facility [Member] \| Minimum [Member]
Long-term debt, interest	4.45%	4.45%
China Zheshang Bank Co., Ltd [Member] \| Revolving Credit Facility [Member] \| The ¥100M Credit Facility [Member] \| Maximum [Member]
Long-term debt, interest	6.60%	6.60%
China Zheshang Bank Co., Ltd [Member] \| Revolving Credit Facility [Member] \| The ¥50M Credit Facility [Member]
Long-term debt, maximum	$ 7,167	$ 7,167
Long-term debt, maturity date	Jun. 27, 2022	Jun. 27, 2022
Long-term debt, interest	5.70%	5.70%