Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Schedule of changes in the allowance for doubtful accounts

Changes in the allowance for doubtful accounts for continuing operations are as follows (in thousands):

	Years ended December 31,
	2020		2019
Balance, beginning of year	$	1,527	$	1,190
Charges to provision for doubtful accounts, net of recoveries	652		512
Write-offs	(863)		(175)
Balance, end of year	$	1,316	$	1,527

Schedule of depreciation or amortization of property and equipment

Depreciation or amortization of property and equipment, including right-of-use assets (“ROU”), is calculated using the straight-line method over the asset’s estimated useful life as follows:

Buildings and leasehold improvements	2-30 years
Machinery and equipment	7-10 years
Furniture and fixtures	3 years
Land improvements	20 years
Transportation equipment	2-5 years
Computer equipment and software	3-7 years

Property and equipment are as follows (in thousands):

	December 31,
	2020		2019
Land	$	2,415	$	2,415
Land improvements	867		2,025
Buildings and leasehold improvements	6,364		38,741
Machinery and equipment	7,760		27,694
Furniture and fixtures	649		1,671
Transportation equipment	1,190		1,440
Computer equipment and software	1,296		3,348
Property and equipment	20,541		77,334
Less accumulated depreciation	(11,454)		(37,505)
Property and equipment, net	$	9,087	$	39,829