SUPPLEMENTARY BALANCE SHEET INFORMATION - Narrative (Details)		3 Months Ended
	Aug. 09, 2024 USD ($) shares	Mar. 31, 2026 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)	May 31, 2023 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Inventories, net		$ 7,072,000		$ 6,988,000
Depreciation expense		783,000	$ 46,000
Gross property and equipment		22,869,000		24,977,000
Less current portion		256,000		256,000
Note receivable, net of current portion		8,766,000		8,629,000
Total note receivable		$ 9,022,000		8,885,000
Series A Preferred Stock
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock issued during period (in shares) | shares	250,000
Preferred stock, dividend percentage	10.00%	10.00%
Issuance of preferred stock	$ 2,600,000
Catalyst
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Investment at fair value		$ 953,000		953,000
Enservco | Common Stock
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Equity method investment, ownership percentage	19.90%
Enservco | Convertible Preferred Stock
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Equity method investments			$ 0
KBS Builders, Inc. (KBS)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Standard warranty period		12 months
Interest rate for notes receivable (as a percent)		0.12
Total note receivable		$ 32,000		32,000
EdgeBuilder, Inc. (EdgeBuilder)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Standard warranty period		25 years
Timber Technologies Solutions, Inc. (TT)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Standard warranty period		50 years
Catalyst
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Notes issued in sale transaction					$ 7,000,000
Total note receivable		$ 8,468,000		8,257,000
Catalyst | Digirad Health Inc
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Interest rate for notes receivable (as a percent)					0.050
Basis spread on variable rate (as a percent)					5.00%
Catalyst | Digirad Health Inc | Effective Period Two
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Interest rate for notes receivable (as a percent)					0.070
Basis spread on variable rate (as a percent)					5.00%
MD Office Solutions
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Interest rate for notes receivable (as a percent)		0.050
Original principal amount of notes		$ 522,000
Less current portion		223,000
Note receivable, net of current portion		299,000
Quarterly installment principal receivable		74,000
Total note receivable		522,000		596,000
Enservco
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total note receivable	$ 1,000
Enservco | Common Stock
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Investment (in shares) | shares	9,023,035
Enservco | Preferred Stock
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Investment (in shares) | shares	3,500,000
Land and Building
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gross property and equipment		1,715,000
Machinery and equipment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gross property and equipment		12,779,000		$ 12,750,000
Machinery and equipment | Energy Services
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gross property and equipment		5,721,000
Alliance Drilling Tools, LLC (ADT)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Inventories, net		$ 1,111,000