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

6 Months Ended

Nov. 30, 2020

Customer Deposits And Deferred Revenue Short-term

Customer deposits and deferred revenue

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

	November 30,		May 31,
	2020		2020
Customer deposits	$	—	$	—
Deferred revenue		66		170
	$	66	$	170