Summary of Significant Accounting Policies (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Total revenues	$ 46,691	$ 40,220
Change	$ 6,471
Percent of change	16.10%
Product Sales
Total revenues	$ 32,228	29,159
Change	$ 3,069
Percent of change	10.50%
Product Sales | Soundwall Sales
Total revenues	$ 7,736	9,867
Change	$ (2,131)
Percent of change	(21.60%)
Product Sales | Architectural Sales
Total revenues	$ 1,104	876
Change	$ 228
Percent of change	26.00%
Product Sales | Slenderwall Sales
Total revenues	$ 5,063	5,572
Change	$ (509)
Percent of change	(9.10%)
Product Sales | Miscellaneous Wall Sales
Total revenues	$ 1,685	1,760
Change	$ (75)
Percent of change	(4.30%)
Product Sales | Barrier Sales
Total revenues	$ 8,582	7,264
Change	$ 1,318
Percent of change	18.10%
Product Sales | Easi-Set and Easi-Span Building Sales
Total revenues	$ 5,937	2,114
Change	$ 3,823
Percent of change	180.80%
Product Sales | Utility Sales
Total revenues	$ 1,608	1,232
Change	$ 376
Percent of change	30.50%
Product Sales | Miscellaneous Sales
Total revenues	$ 513	474
Change	$ 39
Percent of change	8.20%
Service Revenue
Total revenues	$ 14,463	11,061
Change	$ 3,402
Percent of change	30.80%
Service Revenue | Barrier Rentals
Total revenues	$ 2,488	1,729
Change	$ 759
Percent of change	43.90%
Service Revenue | Royalties
Total revenues	$ 1,672	1,675
Change	$ (3)
Percent of change	(0.20%)
Service Revenue | Shipping and Installation
Total revenues	$ 10,303	$ 7,657
Change	$ 2,646
Percent of change	34.60%