Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Summary of Significant Accounting Policies

Property and equipment estimated useful lives

	Years
Buildings and improvements		10-40
Trucks and automotive equipment		3-10
Shop machinery and equipment		3-10
Land improvements		10-15
Rental equipment		5-10
Office equipment		3-10

Disaggregation of revenue

Revenue by Type (Disaggregated Revenue)	2021		2020		Change			% Change
Product Sales:
Soundwall Sales	$	8,025	$	7,499	$	526			7	%
Architectural Sales		4,932		3,668		1,264			34	%
SlenderWall Sales		1,795		948		847			89	%
Miscellaneous Wall Sales		2,352		3,371		(1,019	)		(30	)%
Barrier Sales		4,686		5,507		(821	)		(15	)%
Easi-Set and Easi-Span Building Sales		3,036		2,935		101			3	%
Utility Sales		2,468		1,310		1,158			88	%
Miscellaneous Sales		1,206		1,538		(332	)		(22	)%
Total Product Sales		28,500		26,776		1,724			6	%
Barrier Rentals		9,925		6,879		3,046			44	%
Royalty Income		2,216		1,688		528			31	%
Shipping and Installation Revenue		10,001		8,519		1,482			17	%
Total Service Revenue		22,142		17,086		5,056			30	%
Total Revenue	$	50,642	$	43,862	$	6,780			15	%