SEGMENT AND GEOGRAPHIC DATA - Segment Information (Details) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2025 USD ($)	Jun. 30, 2025 USD ($)	Mar. 31, 2025 USD ($)	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Sep. 30, 2025 USD ($) Segment	Sep. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)
Segment Reporting Information [Line Items]
Revenues	$ 47,959			$ 36,853			$ 115,366	$ 106,456
Cost of revenues	27,332			18,250			59,706	53,908
Gross profit	20,627			18,603			55,660	52,548
Salaries and related	(16,135)			(14,908)			(45,317)	(44,399)
Office and general	(4,819)			(2,823)			(10,176)	(8,164)
Marketing and promotion	(913)			(971)			(2,814)	(2,627)
Operating expenses depreciation and amortization	(404)			(358)			(932)	(1,042)
Operating loss	(1,644)			(457)			(3,579)	(3,684)
EBITDA (loss)	(930)			(283)			(2,594)	(2,960)
Total depreciation and amortization	(666)			(358)			(1,194)	(1,042)
Interest income (expense), net	81			93			206	280
Provision for income taxes	(249)			(298)			(626)	(463)
Net loss	(1,764)	$ (688)	$ (1,756)	(846)	$ (441)	$ (2,898)	(4,208)	(4,185)
Accounts receivable, net	36,239			20,093			36,239	20,093	$ 20,093
Long-lived assets, net of accumulated depreciation and amortization	26,214			8,436			26,214	8,436	8,436
Total assets	117,140			52,583			$ 117,140	52,583	$ 52,583
Number of reportable segments | Segment							4
Building Solutions
Segment Reporting Information [Line Items]
Revenues	9,603						$ 9,603
Business Services
Segment Reporting Information [Line Items]
Revenues	37,038			36,853			104,445	106,456
Energy Services
Segment Reporting Information [Line Items]
Revenues	1,318						1,318
Operating Segments | Building Solutions
Segment Reporting Information [Line Items]
Revenues	9,603						9,603
Cost of revenues	7,919						7,919
Gross profit	1,684						1,684
Salaries and related	(761)						(761)
Office and general	(488)						(488)
Marketing and promotion	(9)						(9)
Operating expenses depreciation and amortization	(40)						(40)
Operating loss	386						386
EBITDA (loss)	495						495
Total depreciation and amortization	(109)						(109)
Interest income (expense), net	(51)						(51)
Provision for income taxes	0						0
Net loss	335						335
Accounts receivable, net	7,416						7,416
Long-lived assets, net of accumulated depreciation and amortization	4,309						4,309
Total assets	34,532						34,532
Operating Segments | Business Services
Segment Reporting Information [Line Items]
Revenues	37,038			36,853			104,445	106,456
Cost of revenues	18,408			18,250			50,782	53,908
Gross profit	18,630			18,603			53,663	52,548
Salaries and related	(14,570)			(14,609)			(42,925)	(43,335)
Office and general	(2,154)			(1,862)			(5,437)	(5,213)
Marketing and promotion	(901)			(970)			(2,803)	(2,624)
Operating expenses depreciation and amortization	(350)			(355)			(872)	(1,034)
Operating loss	655			807			1,626	342
EBITDA (loss)	797			704			1,255	279
Total depreciation and amortization	(350)			(355)			(872)	(1,034)
Interest income (expense), net	(128)			(132)			(406)	(390)
Provision for income taxes	(3)			(248)			(451)	(367)
Net loss	316			(31)			(474)	(1,512)
Accounts receivable, net	24,777			20,093			24,777	20,093
Long-lived assets, net of accumulated depreciation and amortization	8,073			8,410			8,073	8,410
Total assets	45,910			45,273			45,910	45,273
Operating Segments | Energy Services
Segment Reporting Information [Line Items]
Revenues	1,318						1,318
Cost of revenues	972						972
Gross profit	346						346
Salaries and related	(231)						(231)
Office and general	(158)						(158)
Marketing and promotion	(3)						(2)
Operating expenses depreciation and amortization	(8)						(8)
Operating loss	(54)						(53)
EBITDA (loss)	140						140
Total depreciation and amortization	(169)						(169)
Interest income (expense), net	(39)						(39)
Provision for income taxes	0						0
Net loss	(68)						(68)
Accounts receivable, net	3,967						3,967
Long-lived assets, net of accumulated depreciation and amortization	6,995						6,995
Total assets	12,628						12,628
Operating Segments | Investments
Segment Reporting Information [Line Items]
Revenues	53						53
Cost of revenues	33						33
Gross profit	20						20
Salaries and related	0						0
Office and general	(26)						(26)
Marketing and promotion	0						0
Operating expenses depreciation and amortization	0						0
Operating loss	(6)						(6)
EBITDA (loss)	(6)						(6)
Total depreciation and amortization	(33)						(33)
Interest income (expense), net	89						89
Provision for income taxes	0						0
Net loss	50						50
Accounts receivable, net	0						0
Long-lived assets, net of accumulated depreciation and amortization	6,660						6,660
Total assets	19,524						19,524
Inter-Segment Elimination
Segment Reporting Information [Line Items]
Revenues	(53)			0			(53)	0
Cost of revenues	0			0			0	0
Gross profit	(53)			0			(53)	0
Salaries and related	(573)			(299)			(1,400)	(1,064)
Office and general	(1,993)			(961)			(4,067)	(2,951)
Marketing and promotion	0			(1)			0	(3)
Operating expenses depreciation and amortization	(6)			(3)			(12)	(8)
Operating loss	(2,625)			(1,264)			(5,532)	(4,026)
EBITDA (loss)	(2,356)			(987)			(4,478)	(3,239)
Total depreciation and amortization	(5)			(3)			(11)	(8)
Interest income (expense), net	210			225			613	670
Provision for income taxes	(246)			(50)			(175)	(96)
Net loss	(2,397)			(815)			(4,051)	(2,673)
Accounts receivable, net	79			0			79	0
Long-lived assets, net of accumulated depreciation and amortization	177			26			177	26
Total assets	$ 4,546			$ 7,310			$ 4,546	$ 7,310