15. SEGMENT INFORMATION

9 Months Ended

Feb. 28, 2021

Segment Reporting [Abstract]

15. SEGMENT INFORMATION

15. SEGMENT INFORMATION

    The Company has only one reportable segment. The information for revenue category by type, product line, geography and timing of revenue recognition, is summarized in Note “3. REVENUE.”

    Property and equipment information is based on the physical location of the assets. The following table presents property and equipment information for geographic areas (in thousands):

	February 28,		May 31,
	2021		2020
United States	$	612	$	662
Asia		5		1
Europe		—		—
	$	617	$	663

    As of February 28, 2021, the operating lease right-of-use assets of $1,763,000 were allocated in the United States.

    There were no revenues through distributors for the three and nine months ended February 28, 2021 and February 29, 2020.

    Sales to the Company’s five largest customers accounted for approximately 95% and 82% of its net sales in the three and nine months ended February 28, 2021, respectively. Four customers accounted for approximately 55%,15%, 11% and 11% of the Company’s net sales in the three months ended February 28, 2021. Four customers accounted for approximately 33%,15%, 14% and 11% of the Company’s net sales in the nine months ended February 28, 2021. Sales to the Company’s five largest customers accounted for approximately 94% and 89% of its net sales in the three and nine months ended February 29, 2020, respectively. One customer accounted for approximately 71% of the Company’s net sales in the three months ended February 29, 2020. Two customers accounted for approximately 51% and 18% of the Company’s net sales in the nine months ended February 29, 2020. No other customers represented more than 10% of the Company’s net sales in the three and nine months ended February 28, 2021 and February 29, 2020.