SEGMENT AND GEOGRAPHIC DATA - Segment Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2026 USD ($) Segment	Mar. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)
Segment Reporting Information [Line Items]
Revenues	$ 50,061	$ 31,866
Cost of revenues	29,506	15,468
Gross profit	20,555	16,398
Salaries and related	(18,740)	(14,345)
Office and general	(4,597)	(2,564)
Marketing and promotion	(922)	(930)
Operating expenses depreciation and amortization	(311)	(283)
Operating loss	(4,015)	(1,724)
EBITDA (loss)	(3,104)	(1,512)
Total depreciation and amortization	(942)	(283)
Interest income (expense), net	(13)	71
(Benefit from) provision for income taxes	266	(32)
Net loss	(3,793)	(1,756)
Accounts receivable, net	32,839	35,220	$ 35,220
Long-lived assets, net of accumulated depreciation and amortization	23,307	26,242	26,242
Total assets	$ 108,513	113,231	$ 113,231
Number of reportable segments | Segment	4
Building Solutions
Segment Reporting Information [Line Items]
Revenues	$ 11,598
Business Services
Segment Reporting Information [Line Items]
Revenues	35,005	31,866
Energy Services
Segment Reporting Information [Line Items]
Revenues	3,458
Operating Segments | Building Solutions
Segment Reporting Information [Line Items]
Revenues	11,598
Cost of revenues	9,957
Gross profit	1,641
Salaries and related	(1,592)
Office and general	(1,167)
Marketing and promotion	(12)
Operating expenses depreciation and amortization	(90)
Operating loss	(1,220)
EBITDA (loss)	(1,354)
Total depreciation and amortization	(264)
Interest income (expense), net	(126)
(Benefit from) provision for income taxes	0
Net loss	(1,744)
Accounts receivable, net	6,455	8,671
Long-lived assets, net of accumulated depreciation and amortization	4,187	4,320
Total assets	30,790	34,105
Operating Segments | Business Services
Segment Reporting Information [Line Items]
Revenues	35,005	31,866
Cost of revenues	17,559	15,468
Gross profit	17,446	16,398
Salaries and related	(15,092)	(13,894)
Office and general	(2,129)	(1,638)
Marketing and promotion	(897)	(930)
Operating expenses depreciation and amortization	(192)	(280)
Operating loss	(864)	(344)
EBITDA (loss)	(1,015)	(496)
Total depreciation and amortization	(192)	(280)
Interest income (expense), net	(158)	(121)
(Benefit from) provision for income taxes	766	(76)
Net loss	(599)	(973)
Accounts receivable, net	22,606	22,398
Long-lived assets, net of accumulated depreciation and amortization	7,774	7,934
Total assets	43,021	43,418
Operating Segments | Energy Services
Segment Reporting Information [Line Items]
Revenues	3,458
Cost of revenues	1,915
Gross profit	1,543
Salaries and related	(683)
Office and general	(378)
Marketing and promotion	(13)
Operating expenses depreciation and amortization	(19)
Operating loss	450
EBITDA (loss)	848
Total depreciation and amortization	(401)
Interest income (expense), net	(43)
(Benefit from) provision for income taxes	0
Net loss	404
Accounts receivable, net	4,004	4,045
Long-lived assets, net of accumulated depreciation and amortization	4,678	7,235
Total assets	12,401	12,526
Operating Segments | Investments
Segment Reporting Information [Line Items]
Revenues	159
Cost of revenues	75
Gross profit	84
Salaries and related	0
Office and general	(92)
Marketing and promotion	0
Operating expenses depreciation and amortization	0
Operating loss	(8)
EBITDA (loss)	47
Total depreciation and amortization	(75)
Interest income (expense), net	173
(Benefit from) provision for income taxes	0
Net loss	145
Accounts receivable, net	0	0
Long-lived assets, net of accumulated depreciation and amortization	6,511	6,586
Total assets	20,894	21,689
Inter-Segment Elimination
Segment Reporting Information [Line Items]
Revenues	(159)	0
Cost of revenues	0	0
Gross profit	(159)	0
Salaries and related	(1,373)	(451)
Office and general	(831)	(926)
Marketing and promotion	0	0
Operating expenses depreciation and amortization	(10)	(3)
Operating loss	(2,373)	(1,380)
EBITDA (loss)	(1,630)	(1,016)
Total depreciation and amortization	(10)	(3)
Interest income (expense), net	141	192
(Benefit from) provision for income taxes	(500)	44
Net loss	(1,999)	(783)
Accounts receivable, net	(226)	106
Long-lived assets, net of accumulated depreciation and amortization	157	167
Total assets	$ 1,407	$ 1,493