INTERIM FINANCIAL REPORTING (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues	$ 11,956,000	$ 13,100,000	$ 35,644,000	$ 40,625,000
Percent Of Change	(9.00%)		12.00%
Changes	$ (1,144,000)		$ 4,981,000
Total Revenues	$ 11,956,000	13,100,000	$ 35,644,000	40,625,000
Product Sales
Percent Of Change	2.00%		(10.00%)
Total Revenues	$ 7,076,000	7,205,000	$ 19,714,000	21,868,000
Change	$ (129,000)	(455,000)	$ (2,154,000)
Product Sales | Soundwall Sales
Percent Of Change	(65.00%)		(60.00%)
Changes	$ (1,574,000)		$ (3,870,000)
Total Revenues	$ 833,000	2,407,000	$ 2,626,000	6,496,000
Product Sales | Architectural Panel Sales
Percent Of Change	201.00%		(10.00%)
Total Revenues	$ 1,223,000	406,000	$ 3,476,000	3,843,000
Change	$ 817,000		$ (367,000)
Product Sales | SlenderWall Sales
Percent Of Change	99.00%		(18.00%)
Total Revenues	$ 11,000	1,027,000	$ 1,018,000	1,247,000
Change	$ (1,016,000)		$ (229,000)
Product Sales | Miscellaneous Wall Sales
Percent Of Change	168.00%		32.00%
Change	$ 876,000		$ 580,000
Total Revenues	$ 1,396,000	520,000	$ 2,384,000	1,804,000
Product Sales | Barrier Sales
Percent Of Change	(17.00%)		15.00%
Total Revenues	$ 847,000	1,022,000	$ 4,099,000	3,578,000
Change	$ (175,000)		$ 521,000
Product Sales | Easi-Set and Easi-Span Building Sales
Percent Of Change	125.00%		35.00%
Total Revenues	$ 1,523,000	676,000	$ 3,086,000	2,278,000
Change	$ 847,000		$ 808,000
Product Sales | Utility Sales
Percent Of Change	(41.00%)		2.00%
Total Revenues	$ 523,000	891,000	$ 1,655,000	1,628,000
Change	$ (368,000)	197,000	$ 27,000
Product Sales | Miscellaneous Sales
Percent Of Change	181.00%		38.00%
Total Revenues	$ 720,000	256,000	$ 1,370,000	994,000
Change	$ 464,000	152,000	$ 376,000
Service Revenue
Percent Of Change	17.00%		(15.00%)
Total Revenues	$ 4,880,000	5,895,000	$ 15,930,000	18,757,000
Change	$ (1,015,000)		$ (2,827,000)
Service Revenue | Royalty Income [Member]
Percent Of Change	23.00%		14.00%
Total Revenues	$ 833,000	676,000	$ 2,031,000	1,788,000
Change	$ 157,000	79,000	$ 243,000
Service Revenue | Shipping and Installation Revenue [Member]
Percent Of Change	24.00%		9.00%
Total Revenues	$ 2,678,000	3,511,000	$ 9,083,000	8,302,000
Change	$ (833,000)	542,000	$ 781,000
Service Revenue | Barrier Rental
Percent Of Change	20.00%		(44.00%)
Total Revenues	$ 1,369,000	$ 1,708,000	$ 4,816,000	$ 8,667,000
Change	$ (339,000)		$ (3,851,000)