Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-28

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Stated as a percentage, the estimated or actual value of the asset at the end of its useful life or when it is no longer serviceable (cannot be used for its original purpose) divided by its [historical] capitalized cost.

+ References

No definition available.

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentSalvageValuePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
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Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Asset, Useful Life (Year)	136 months		138 months
Gain (Loss) on Disposition of Property Plant Equipment	$ 9,791	$ 167
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)				3 years
Tractors [Member]
Property, Plant and Equipment, Useful Life (Year)				5 years
Tractors [Member] \| Minimum [Member]
Property, Plant and Equipment, Salvage Value, Percentage				10.00%
Tractors [Member] \| Maximum [Member]
Property, Plant and Equipment, Salvage Value, Percentage				35.00%
Refrigerated Trailers [Member]
Property, Plant and Equipment, Useful Life (Year)				7 years
Dry Van Trailers [Member]
Property, Plant and Equipment, Useful Life (Year)				10 years
Dry Van Trailers [Member] \| Minimum [Member]
Property, Plant and Equipment, Salvage Value, Percentage				28.00%
Dry Van Trailers [Member] \| Maximum [Member]
Property, Plant and Equipment, Salvage Value, Percentage				29.00%
Terminal Property [Member] \| CALIFORNIA
Gain (Loss) on Disposition of Property Plant Equipment	$ 7,600