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Leases | 12 Months Ended
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Apr. 30, 2025
Leases [Abstract] |
Leases | Leases The Company accounts for its leases under ASC 842. Under this guidance, arrangements meeting the definition of a lease are classified as operating or financing leases, and are recorded on the consolidated balance sheet as both an operating lease ROU asset and operating lease liability, calculated by discounting fixed lease payments over the lease term at the rate implicit in the lease or the Company’s incremental borrowing rate. Lease liabilities are increased by interest and reduced by payments each period, and the right of use asset is amortized over the lease term. For operating leases, interest on the lease liability and the amortization of the right of use asset result in straight-line rent expense over the lease term. Variable lease expenses, if any, are recorded when incurred. The Company has elected to apply the short-term lease exemption practical expedient for each class of underlying assets and excludes short-term leases having initial terms of 12 months or less. The Company recognizes rent expense on a straight-line basis over the lease term for these short-term leases. The Company has determined that no material embedded leases exist. Under ASC 842, the Company determines if an arrangement is a lease at inception. ROU assets and liabilities are recognized at commencement date based on the present value of remaining lease payments over the lease term. For this purpose, the Company considers only payments that are fixed and determinable at the time of commencement. As the Company's leases do not provide an implicit rate, the Company uses an incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. Operating Leases The Company currently leases certain office equipment and its office and laboratory facilities under non-cancelable operating leases. Rent expense for operating leases is recognized on a straight-line basis over the lease term from the lease commencement date through the scheduled expiration date. Rent expenses totaled $1.8 million for the years ended April 30, 2025 and 2024. The Company leases the following facilities: •One University Plaza, Suite 307, Hackensack, New Jersey 07601, which, since November 2011, serves as the Company’s corporate headquarters. The lease expires in November 2026. The Company recognized $75,000 and $77,000 of rent expense relative to this lease for fiscal 2025 and 2024, respectively. •1330 Piccard Drive Suite 025, Rockville, MD 20850, which consists of laboratory and office space where the Company conducts operations related to its primary service offerings. The Company executed the original lease in January 2017. The lease was amended to expand the premises and extend the expiration date in March 2020 and again in December 2020. The operating commencement date was August 11, 2017. This lease expires in February 2029. The Company recognized $1.7 million of rent expense for both fiscal 2025 and 2024. •VIA LEONE XIII, 14, Milan, Italy, which consists of laboratory and office space where the Company conducts operations related to its flow cytometry service offerings. During fiscal 2023, the Company executed its current lease for this office and laboratory space. The lease expires October 31, 2028. The Company recognized $50,000 of rent expense associated with this lease in Italy for both fiscal 2025 and 2024. ROU assets and lease liabilities related to the Company's current operating leases are as follows (in thousands):
| April 30, 2025 | April 30, 2024
Operating lease right-of-use assets, net | 5,080 |  | 6,252 |
Current portion of operating lease liabilities | 1,471 |  | 1,337 |
Non-current portion of operating lease liabilities | 4,634 |  | 6,093 |
As of April 30, 2025, the weighted average remaining operating lease term and the weighted average discount rate were 3.75 years and 5.89%, respectively. As of April 30, 2024, the weighted average remaining operating lease term and the weighted average discount rate were 4.7 years and 5.88%, respectively. Future minimum lease payments for operating leases due each fiscal year as follows (in thousands):
2026 | $ | 2,956 |
2027 | 2,922 |
2028 | 2,871 |
2029 | 2,392 |
Thereafter | — |
Total undiscounted liabilities | 11,141 |
Less: Imputed interest | (5,036) |
Present value of minimum lease payments | $ | 6,105 |
The composition of total lease cost for the years ended April 30, 2025 and 2024 were as follows (in thousands):
| Year Ended April 30, |
| 2025 |  | 2024 |
Operating lease costs | $ | 1,730 |  |  | $ | 1,680 |  |
Financing lease costs: |  |  |  |
Amortization of leased assets | 150 |  |  | 146 |  |
Interest on lease liabilities | 10 |  |  | 15 |  |
Total lease costs | $ | 1,890 |  |  | $ | 1,841 |  |
Refer to Note 4, Property and Equipment, for more information on financing leases.
Leases | Leases The Company accounts for its leases under ASC 842. Under this guidance, arrangements meeting the definition of a lease are classified as operating or financing leases, and are recorded on the consolidated balance sheet as both an operating lease ROU asset and operating lease liability, calculated by discounting fixed lease payments over the lease term at the rate implicit in the lease or the Company’s incremental borrowing rate. Lease liabilities are increased by interest and reduced by payments each period, and the right of use asset is amortized over the lease term. For operating leases, interest on the lease liability and the amortization of the right of use asset result in straight-line rent expense over the lease term. Variable lease expenses, if any, are recorded when incurred. The Company has elected to apply the short-term lease exemption practical expedient for each class of underlying assets and excludes short-term leases having initial terms of 12 months or less. The Company recognizes rent expense on a straight-line basis over the lease term for these short-term leases. The Company has determined that no material embedded leases exist. Under ASC 842, the Company determines if an arrangement is a lease at inception. ROU assets and liabilities are recognized at commencement date based on the present value of remaining lease payments over the lease term. For this purpose, the Company considers only payments that are fixed and determinable at the time of commencement. As the Company's leases do not provide an implicit rate, the Company uses an incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. Operating Leases The Company currently leases certain office equipment and its office and laboratory facilities under non-cancelable operating leases. Rent expense for operating leases is recognized on a straight-line basis over the lease term from the lease commencement date through the scheduled expiration date. Rent expenses totaled $1.8 million for the years ended April 30, 2025 and 2024. The Company leases the following facilities: •One University Plaza, Suite 307, Hackensack, New Jersey 07601, which, since November 2011, serves as the Company’s corporate headquarters. The lease expires in November 2026. The Company recognized $75,000 and $77,000 of rent expense relative to this lease for fiscal 2025 and 2024, respectively. •1330 Piccard Drive Suite 025, Rockville, MD 20850, which consists of laboratory and office space where the Company conducts operations related to its primary service offerings. The Company executed the original lease in January 2017. The lease was amended to expand the premises and extend the expiration date in March 2020 and again in December 2020. The operating commencement date was August 11, 2017. This lease expires in February 2029. The Company recognized $1.7 million of rent expense for both fiscal 2025 and 2024. •VIA LEONE XIII, 14, Milan, Italy, which consists of laboratory and office space where the Company conducts operations related to its flow cytometry service offerings. During fiscal 2023, the Company executed its current lease for this office and laboratory space. The lease expires October 31, 2028. The Company recognized $50,000 of rent expense associated with this lease in Italy for both fiscal 2025 and 2024. ROU assets and lease liabilities related to the Company's current operating leases are as follows (in thousands):
| April 30, 2025 | April 30, 2024
Operating lease right-of-use assets, net | 5,080 |  | 6,252 |
Current portion of operating lease liabilities | 1,471 |  | 1,337 |
Non-current portion of operating lease liabilities | 4,634 |  | 6,093 |
As of April 30, 2025, the weighted average remaining operating lease term and the weighted average discount rate were 3.75 years and 5.89%, respectively. As of April 30, 2024, the weighted average remaining operating lease term and the weighted average discount rate were 4.7 years and 5.88%, respectively. Future minimum lease payments for operating leases due each fiscal year as follows (in thousands):
2026 | $ | 2,956 |
2027 | 2,922 |
2028 | 2,871 |
2029 | 2,392 |
Thereafter | — |
Total undiscounted liabilities | 11,141 |
Less: Imputed interest | (5,036) |
Present value of minimum lease payments | $ | 6,105 |
The composition of total lease cost for the years ended April 30, 2025 and 2024 were as follows (in thousands):
| Year Ended April 30, |
| 2025 |  | 2024 |
Operating lease costs | $ | 1,730 |  |  | $ | 1,680 |  |
Financing lease costs: |  |  |  |
Amortization of leased assets | 150 |  |  | 146 |  |
Interest on lease liabilities | 10 |  |  | 15 |  |
Total lease costs | $ | 1,890 |  |  | $ | 1,841 |  |
Refer to Note 4, Property and Equipment, for more information on financing leases.

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- Definition The entire disclosure for finance leases of lessee. Includes, but is not limited to, description of lessee's finance lease and maturity analysis of finance lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/842-20/tableOfContent + Details
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- Definition The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/842-20/tableOfContent + Details
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