Leases (Tables)
 6 Months Ended
Nov. 30, 2021
Leases [Abstract]  
Supplemental balance sheet information The following table presents supplemental balance sheet information related to leases:
(in thousands)Balance Sheet LocationNov 30, 2021May 31, 2021
Assets
Operating lease ROU assetOther assets$8,159 $9,382 
Liabilities
Current operating lease liabilitiesOther current liabilities2,473 2,415 
Non-current operating lease liabilitiesOther long-term liabilities6,011 7,319 
Total lease liabilities$8,484 $9,734 
The following table presents the weighted average remaining lease term and discount rate:
Nov 30, 2021
Weighted average remaining term (in years)3.68
Weighted average discount rate3.8 %
Lease liability schedule The maturities of the lease liabilities for each of the following fiscal years is:
(in thousands)Nov 30, 2021
Remainder of 2022$1,361 
20232,773 
20242,195 
20251,440 
20261,139 
2027 and thereafter171 
Total lease payments$9,079 
Less: Imputed Interest595 
Total lease obligations$8,484 
Less: Current portion of lease obligations2,473 
Long-term lease obligations$6,011 
Supplemental cash flow information The expenses on the Consolidated Statement of Operations were classified as follows:
Three Months EndedSix Months Ended
(in thousands)
Nov 30, 2021
Nov 30, 2020
Nov 30, 2021
Nov 30, 2020
Cost of sales$218 $192 $437 $393 
Research and development52 197 150 485 
Sales and marketing39 92 79 193 
General and administrative434 256 764 551 
$743 $737 $1,430 $1,622 
The following table presents supplemental cash flow and other information related to leases for the six months ended:
(in thousands)Nov 30, 2021Nov 30, 2020
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases$1,359 $1,360 
ROU assets obtained in exchange for lease liabilities
Operating leases$— $487