XML 24 R14.htm IDEA: XBRL DOCUMENT
v3.23.1

Leases | 3 Months Ended
--- | ---
Mar. 31, 2023
Leases |
Leases | NOTE 7 Leases Substantially all of the leases in which the Company is the lessee are comprised of real property for offices and office equipment rentals with terms extending through 2032. Portions of certain properties are subleased for terms extending through 2024. Substantially all of the Company’s leases are classified as operating leases. The Company has no existing finance leases. The Company elected not to include short-term leases (i.e., leases with initial terms of twelve months or less), or equipment leases (deemed immaterial) on the consolidated financial statements. The following table presents the classification of the Company’s right-of-use, or ROU, assets and lease liabilities on the consolidated financial statements as of March 31, 2023 and December 31, 2022: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  |  |  | March 31, |  | December 31,
(dollars in thousands) |  | ​ |  | 2023 |  | 2022
Lease Right-of-Use Assets | ​ | Classification | ​ | ​ | ​ | ​ | ​ | ​
Operating lease right-of-use assets |  | Operating lease right-of-use assets | ​ | $ | 5,122 | ​ | $ | 5,419
Total lease right-of-use assets | ​ | ​ | ​ | $ | 5,122 | ​ | $ | 5,419
Lease Liabilities |  |  | ​ |  | ​ | ​ |  |
Operating lease liabilities |  | Operating lease liabilities | ​ | $ | 5,545 | ​ | $ | 5,902
Total lease liabilities | ​ | ​ | ​ | $ | 5,545 | ​ | $ | 5,902
​ The calculated amount of the ROU assets and lease liabilities in the table above are impacted by the length of the lease term and the discount rate used to present value the minimum lease payments. The Company’s lease agreements often include one or more options to renew at the Company’s discretion. If at lease inception, the Company considers the exercising of a renewal option to be reasonably certain, the Company will include the extended term in the calculation of the ROU asset and lease liability. Regarding the discount rate, Topic 842 requires the use of the rate implicit in the lease whenever this rate is readily determinable. As this rate is rarely determinable, the Company utilizes its incremental borrowing rate at lease inception, on a collateralized basis, over a similar term. For the Company’s only finance lease, the Company utilized its incremental borrowing rate at lease inception. ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | December 31, |
​ |  | 2023 |  | 2022 | ​
Weighted-average remaining lease term, years | ​ | ​ | ​ | ​ | ​
Operating leases |  | 5.6 | ​ | 5.0 | ​
Weighted-average discount rate |  | ​ | ​ |  | ​
Operating leases |  | 3.3 | % | 3.1 | %
​ As the Company elected, for all classes of underlying assets, not to separate lease and non-lease components and instead to account for them as a single lease component, the variable lease cost primarily represents variable payments such as common area maintenance and utilities. Variable lease cost also includes payments for usage or maintenance of those capitalized equipment operating leases. The following table presents lease costs and other lease information for the three months ended March 31, 2023 and 2022: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three months ended
​ | ​ | March 31,
(dollars in thousands) |  | 2023 | ​ | 2022
Lease costs |  | ​ | ​ | ​ | ​ |
Operating lease cost | ​ | $ | 581 | ​ | $ | 411
Variable lease cost | ​ |  | 225 | ​ |  | 213
Short-term lease cost | ​ |  | 43 | ​ |  | 45
Finance lease cost | ​ |  |  | ​ |  |
Interest on lease liabilities | ​ |  | — | ​ |  | 4
Amortization of right-of-use assets | ​ |  | — | ​ |  | 29
Sublease income | ​ |  | (60) | ​ |  | (57)
Net lease cost | ​ | $ | 789 | ​ | $ | 645
Other information | ​ | ​ | ​ | ​ |  |
Cash paid for amounts included in the measurement of lease liabilities operating cash flows from operating leases | ​ | $ | 479 | ​ | $ | 392
Right-of-use assets obtained in exchange for new operating lease liabilities | ​ | ​ | 257 | ​ | ​ | —
​ ​ Future minimum payments for finance and operating leases with initial or remaining terms of one year or more as of March 31, 2023 were as follows: ​
​ | ​ | ​ | ​
​ | ​ | Operating
(dollars in thousands) |  | Leases
Twelve months ended | ​ | ​ | ​
March 31, 2024 | ​ | $ | 1,881
March 31, 2025 | ​ |  | 1,190
March 31, 2026 | ​ |  | 1,089
March 31, 2027 | ​ |  | 799
March 31, 2028 | ​ |  | 330
Thereafter | ​ |  | 810
Total future minimum lease payments | ​ | $ | 6,099
Amounts representing interest | ​ |  | (554)
Total operating lease liabilities | ​ | $ | 5,545
​

X
- Definition The entire disclosure of information about leases. + References No definition available. + Details
Name: | alrs_LeaseDisclosureTextBlock
Namespace Prefix: | alrs_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration