Note 5 - Revenue From Contracts With Customers

12 Months Ended

Dec. 31, 2020

Notes to Financial Statements

Revenue from Contract with Customer [Text Block]

( 5 ) REVENUE FROM CONTRACTS WITH CUSTOMERS

The following tables provide additional information about our revenue from contracts with customers, including revenue by customer and product type and revenue by market. See also Note

16

for information about revenue by operating segment and geographic region.

	Years Ended December 31,
	2020		2019
Net revenues by customer type:
End user	$	48,041	$	55,074
OEM/Integrator		5,782		5,586
	$	53,823	$	60,660
Net revenues by product type:
Thermal test	$	15,768	$	17,631
Thermal process		18,966		20,079
Semiconductor test		13,112		16,273
Service/other		5,977		6,677
	$	53,823	$	60,660
Net revenues by market:
Semi Market	$	26,870	$	30,953
Industrial		17,341		21,231
Defense/aerospace		6,314		4,842
Telecommunications		1,715		1,845
Other Multi Markets		1,583		1,789
	$	53,823	$	60,660

Changes in the amount of the allowance for doubtful accounts for the years ended

December 31, 2020

and

2019

are as follows:

Balance - January 1, 2019	$	233
Bad debt expense		3
Write-offs		(25	)
Balance - December 31, 2019		211
Bad debt expense		-
Write-offs		-
Foreign currency translation adjustments		1
Balance - December 31, 2020	$	212