Revenue (Tables)

6 Months Ended

Jun. 30, 2025

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

The following tables present our revenue disaggregated by major source for the three and six months ended June 30, 2025 and 2024, respectively (in thousands):

	Three Months Ended June 30, 2025
	Building Solutions		Energy Services		Total
Major Goods/Service Lines
Revenue from Contracts with Customers	$	20,384	$	3,324	$	23,708
Total Revenues	$	20,384	$	3,324	$	23,708
Timing of Revenue Recognition
Services and goods transferred over time	$	—	$	2,222	$	2,222
Services and goods transferred at a point in time	20,384		1,102		21,486
Total Revenues	$	20,384	$	3,324	$	23,708

	Three Months Ended June 30, 2024
	Building Solutions		Energy Services		Total
Major Goods/Service Lines
Revenue from Contracts with Customers	$	13,483	$	—	$	13,483
Total Revenues	$	13,483	$	—	$	13,483
Timing of Revenue Recognition
Services and goods transferred at a point in time	$	13,483	$	—	$	13,483
Total Revenues	$	13,483	$	—	$	13,483

	Six Months Ended June 30, 2025
	Building Solutions		Energy Services		Total
Major Goods/Service Lines
Revenue from Contracts with Customers	$	32,502	$	4,130	$	36,632
Total Revenues	$	32,502	$	4,130	$	36,632
Timing of Revenue Recognition
Services and goods transferred over time	$	—	$	2,907	$	2,907
Services and goods transferred at a point in time	32,502		1,223		33,725
Total Revenues	$	32,502	$	4,130	$	36,632

	Six Months Ended June 30, 2024
	Building Solutions		Energy Services		Total
Major Goods/Service Lines
Revenue from Contracts with Customers	$	22,601	$	—	$	22,601
Total Revenues	$	22,601	$	—	$	22,601
Timing of Revenue Recognition
Services and goods transferred over time	$	22,601	$	—	$	22,601
Total Revenues	$	22,601	$	—	$	22,601

Schedule of Changes in Deferred Revenue

Changes in deferred revenue, which consist primarily of customer deposits, for the six months ended June 30, 2025 are as follows (in thousands):

Balance at December 31, 2024	$	2,523
Revenue recognized that was included in balance at beginning of the year	737
Deferred revenue, net, related to contracts entered into during the year	(253)
Balance at June 30, 2025	$	3,007