Segments (Tables)

6 Months Ended

Jun. 30, 2025

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Segment information for the three and six months ended June 30, 2025 and 2024, respectively, is as follows (in thousands):

	Building Solutions		Energy Services		Investments		Corporate and Intersegment eliminations		Total
For the Three Months Ended June 30, 2025
Revenues	$	20,384	$	3,324	$	158	$	(158)	$	23,708
Cost of revenues	15,141		2,240		74		—		17,455
Gross profit	$	5,243	$	1,084	$	84	$	(158)	$	6,253
Selling, general and administrative	3,286		877		84		2,173		6,420
Amortization of intangible assets	687		98		—		—		785
Income (loss) from operations	$	1,270	$	109	$	—	$	(2,331)	$	(952)
EBITDA	$	2,214	$	530	$	5,033	$	(2,325)	$	5,452
Depreciation and amortization	(965)		(417)		(74)		(8)		(1,464)
Interest income (expense), net	(163)		(97)		166		14		(80)
Income tax benefit (provision)	—		—		—		(457)		(457)
Net income (loss)	$	1,086	$	16	$	5,125	$	(2,776)	$	3,451

	Building Solutions		Energy Services		Investments		Corporate and Intersegment eliminations		Total
For the Three Months Ended June 30, 2024
Revenues	$	13,483	$	—	$	194	$	(194)	$	13,483
Cost of revenues	11,254		—		13		—		11,267
Gross profit	$	2,229	$	—	$	181	$	(194)	$	2,216
Selling, general and administrative	2,481		—		1,372		1,486		5,339
Amortization of intangible assets	590		—		—		—		590
Income (loss) from operations	$	(842)	$	—	$	(1,191)	$	(1,680)	$	(3,713)
EBITDA	$	(203)	$	—	$	(1,451)	$	(1,598)	$	(3,252)
Depreciation and amortization	(774)		—		(13)		(8)		(795)
Interest income (expense), net	(138)		—		199		160		221
Income tax benefit (provision)	—		—		—		39		39
Net income (loss)	$	(1,115)	$	—	$	(1,265)	$	(1,407)	$	(3,787)

	Building Solutions		Energy Services		Investments		Corporate and Intersegment eliminations		Total
For the Six Months Ended June 30, 2025
Revenues	$	32,502	$	4,130	$	316	$	(316)	$	36,632
Cost of revenues	24,330		2,764		149		—		27,243
Gross profit	$	8,172	$	1,366	$	167	$	(316)	$	9,389
Selling, general and administrative	6,194		1,151		134		4,200		11,679
Amortization of intangible assets	1,411		98		—		—		1,509
Income (loss) from operations	$	567	$	117	$	33	$	(4,516)	$	(3,799)
EBITDA	$	2,545	$	720	$	4,605	$	(4,484)	$	3,386
Depreciation and amortization	(1,978)		(600)		(149)		(19)		(2,746)
Interest income (expense), net	(345)		(96)		321		22		(98)
Income tax benefit (provision)	—		—		—		1,733		1,733
Net income (loss)	$	222	$	24	$	4,777	$	(2,748)	$	2,275

	Building Solutions		Energy Services		Investments		Corporate and Intersegment eliminations		Total
For the Six Months Ended June 30, 2024
Revenues	$	22,601	$	—	$	382	$	(382)	$	22,601
Cost of revenues	18,694		—		117		—		18,811
Gross profit	$	3,907	$	—	$	265	$	(382)	$	3,790
Selling, general and administrative	4,615		—		1,412		3,406		9,433
Amortization of intangible assets	1,032		—		—		—		1,032
Income (loss) from operations	$	(1,740)	$	—	$	(1,147)	$	(3,788)	$	(6,675)
EBITDA	$	(525)	$	—	$	(1,075)	$	(3,527)	$	(5,127)
Depreciation and amortization	(1,341)		—		(117)		(25)		(1,483)
Interest income (expense), net	(174)		—		390		379		595
Income tax benefit (provision)	—		—		—		4		4
Net income (loss)	$	(2,040)	$	—	$	(802)	$	(3,169)	$	(6,011)