REVENUE (Tables)

3 Months Ended

Aug. 31, 2021

REVENUE

Disaggregation of revenue

The Company’s revenues by product category are as follows (in thousands):

	Three Months Ended August 31,
	2021		2020
Type of good / service:
Systems	$	3,879	$	801
Contactors		952		627
Services		815		584
	$	5,646	$	2,012
Product lines:
Wafer-level	$	5,143	$	1,559
Test During Burn-In		503		453
	$	5,646	$	2,012

The following presents information about the Company’s operations in different geographic areas. Net sales are based upon ship-to location (in thousands):

	Three Months Ended August 31,
	2021		2020
Geographic region:
United States	$	506	$	1,041
Asia		5,137		969
Europe		3		2
	$	5,646	$	2,012

With the exception of the amount of service contracts and extended warranties, the Company’s product category revenues are recognized at a point in time when control transfers to the customers. The following presents revenue based on timing of recognition (in thousands):

	Three Months Ended August 31,
	2021		2020
Timing of revenue recognition:
Products and services transferred at a point in time	$	5,290	$	1,570
Services transferred over time		356		442
	$	5,646	$	2,012