4. Leases

9 Months Ended

Jan. 31, 2021

Lessee Disclosure [Abstract]

Leases

Note 4 – Leases

We currently lease office, manufacturing, laboratory and warehouse space in four buildings under three separate non-cancellable operating lease agreements. All of our leased facilities are located in close proximity in Tustin, California, have original lease terms ranging from 7 to 12 years, contain two multi-year renewal options, and scheduled rent increases of 3% on either an annual or biennial basis. A multi-year renewal option was included in determining the right-of-use asset and lease liability for two of our leases as we considered it reasonably certain that we would exercise such renewal options. In addition, two of our leases provide for periods of free rent, lessor improvements and tenant improvement allowances, of which certain of these improvements have been classified as leasehold improvements and are being amortized over the shorter of the estimated useful life of the improvements or the remaining life of the lease. The operating lease right-of-use assets and liabilities included in our accompanying condensed consolidated balance sheets primarily relate to these facility leases.

In September 2019, we terminated an operating lease for one of our non-manufacturing facilities that was primarily utilized for warehouse space. In connection with the termination of this lease, we removed the corresponding operating lease right-of-use asset and liability balances from our balance sheet and recognized a loss of $0.4 million, which amount is included in loss on lease termination in the accompanying unaudited condensed consolidated statements of operations and comprehensive income (loss) for the nine months ended January 31, 2020.

Certain of our facility leases require us to pay property taxes, insurance and common area maintenance. While these payments are not included as part of our lease liabilities, they are recognized as variable lease cost in the period they are incurred.

The components of lease cost included in our accompanying unaudited condensed consolidated statements of operations and comprehensive income (loss) were as follows (in thousands):

	Three Months Ended January 31,				Nine Months Ended January 31,
	2021		2020		2021		2020
Operating lease cost	$	788	$	798	$	2,364	$	2,570
Variable lease cost		112		155		433		488
Short-term lease cost		99		83		289		83
Total lease cost	$	999	$	1,036	$	3,086	$	3,141

Supplemental consolidated balance sheet and other information related to our operating leases as of January 31, 2021 and April 30, 2020 were as follows (in thousands, expect weighted average data):

	January 31, 2021		April 30, 2020
Assets
Operating lease right-of-use assets	$	19,053	$	20,100
Liabilities
Current portion of operating lease liabilities	$	1,334	$	1,228
Operating lease liabilities, less current portion		20,233		21,244
Total operating lease liabilities	$	21,567	$	22,472
Weighted average remaining lease term		9.8 years		10.5 years
Weighted average discount rate		7.4%		8.0%

Cash paid for amounts included in the measurement of lease liabilities for the nine months ended January 31, 2021 and 2020 was $2.2 million and $2.3 million, respectively, and is included in net cash provided by operating activities in our accompanying unaudited condensed consolidated statements of cash flows.

As of January 31, 2021, the maturities of our operating lease liabilities, which includes those derived from lease renewal options that we considered reasonably certain that we would exercise, were as follows (in thousands):

Fiscal Year Ending April 30,	Total
2021 (remaining period)	$	749
2022		2,995
2023		3,010
2024		3,086
2025		3,171
Thereafter		18,767
Total lease payments	$	31,778
Less: imputed interest		(10,211	)
Total operating lease liabilities	$	21,567