9. CUSTOMER DEPOSITS AND DEFERRED REVENUE, SHORT-TERM (Tables)

9 Months Ended

Feb. 28, 2021

Customer Deposits And Deferred Revenue Short-term

Customer deposits and deferred revenue

    Customer deposits and deferred revenue, short-term (in thousands):

	February 28,		May 31,
	2021		2020
Customer deposits	$	471	$	—
Deferred revenue		116		170
	$	587	$	170