Note 10 - Third-party Long-term Debt - Accrued Interest (Details) - Nonrelated Party [Member] - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Accrued interest	$ 2,596,000	$ 6,271,000
Accrued interest	2,596,000	6,271,000
Less: Accrued interest payable	(2,596,000)	(6,271,000)
Long-term interest payable, net of current portion	0	0
Kissick Debt [Member] \| John Kissick [Member]
Accrued interest	2,169,000	6,028,000
Accrued interest	2,169,000	6,028,000
LE Term Loan Due 2034 [Member] \| Veritex Community Bank [Member]
Accrued interest	181,000	53,000
Accrued interest	181,000	53,000
LRM Term Loan Due 2034 [Member] \| Veritex Community Bank [Member]
Accrued interest	70,000	66,000
Accrued interest	70,000	66,000
NPS Term Loan Due 2031 [Member] \| Greater Nevada Credit Union (GNCU) [Member]
Accrued interest	17,000	17,000
Accrued interest	17,000	17,000
BDEC Term Loan Due 2051 [Member]
Accrued interest	135,000	82,000
Accrued interest	135,000	82,000
LE Term Loan Due 2050 [Member] \| Small Business Administration SBA [Member]
Accrued interest	12,000	12,000
Accrued interest	12,000	12,000
NPS Term Loan Due 2053 [Member] \| Small Business Administration SBA [Member]
Accrued interest	12,000	12,000
Accrued interest	12,000	12,000
Equipment Loan Due 2025 [Member] \| Texas First Rentals, LLC [Member]
Accrued interest	0	1,000
Accrued interest	$ 0	$ 1,000

Amount of interest payable on debt, including, but not limited to, trade payables, classified as noncurrent.

No definition available.

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

- Definition

Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.20)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Amount of interest payable on debt, including, but not limited to, trade payables.

+ References

Reference 1: 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)(15)(a))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15(5))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

+ Details

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