OPERATING SEGMENTS - Schedule of Financial Information of Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Segment Reporting Information [Line Items]
Segment net sales	$ 6,915	$ 11,348	$ 14,284	$ 19,072
Depreciation and amortization expense	111	182	301	362
Interest expense, net	254	238	517	475
Operating Segments
Segment Reporting Information [Line Items]
Segment net sales	6,915	11,348	14,284	19,072
Depreciation and amortization expense	111	182	301	362
Interest expense, net	191	214	392	438
Segment net income	241	499	(273)	(256)
Total segment assets	8,666	14,449	8,666	14,449	$ 11,051
Expenditures for segment assets	117	101	176	118
Operating Segments | Modular Home Manufacturing
Segment Reporting Information [Line Items]
Segment net sales	2,894	4,942	5,272	9,791
Depreciation and amortization expense	51	132	186	264
Interest expense, net	66	84	142	174
Segment net income	159	65	(639)	(219)
Total segment assets	4,813	7,586	4,813	7,586
Expenditures for segment assets	0	0	0	12
Operating Segments | Structural Wall Panel Manufacturing
Segment Reporting Information [Line Items]
Segment net sales	3,971	5,533	8,929	8,368
Depreciation and amortization expense	60	50	115	98
Interest expense, net	125	130	250	264
Segment net income	159	104	546	(177)
Total segment assets	3,812	5,876	3,812	5,876
Expenditures for segment assets	117	101	176	106
Operating Segments | Investment Fund Management [Member]
Segment Reporting Information [Line Items]
Segment net sales	50	873	83	913
Depreciation and amortization expense	0	0	0	0
Interest expense, net	0	0	0	0
Segment net income	(77)	330	(180)	140
Total segment assets	41	987	41	987
Expenditures for segment assets	$ 0	$ 0	$ 0	$ 0