XML 109 R99.htm IDEA: XBRL DOCUMENT v3.23.1

Fair Value of Assets and Liabilities - Off-Balance Sheet Credit-Related Commitments (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Financial Assets
Investment securities held-to-maturity	$ 267,874	$ 270,912
Carrying Amount
Financial Assets
Cash and cash equivalents	145,181	58,242
Investment securities held-to-maturity	313,871	321,902
Loans, net	2,451,523	2,412,848
Accrued interest receivable	12,983	12,869
Bank-owned life insurance	32,583	33,991
Financial Liabilities
Noninterest-bearing deposits	792,977	860,987
Interest-bearing deposits	1,993,583	1,842,138
Time deposits	245,418	212,359
Short-term borrowings	372,145	378,080
Long-term debt	58,872	58,843
Accrued interest payable	1,410	2,426
Estimated Fair Value
Financial Assets
Cash and cash equivalents	145,181	58,242
Investment securities held-to-maturity	267,874	270,912
Loans, net	2,366,306	2,311,956
Accrued interest receivable	12,983	12,869
Bank-owned life insurance	32,583	33,991
Financial Liabilities
Noninterest-bearing deposits	792,977	860,987
Interest-bearing deposits	1,993,583	1,842,138
Time deposits	242,109	208,550
Short-term borrowings	372,145	378,080
Long-term debt	56,200	56,116
Accrued interest payable	1,410	2,426
Level 1 | Estimated Fair Value
Financial Assets
Cash and cash equivalents	145,181	58,242
Accrued interest receivable	12,983	12,869
Financial Liabilities
Short-term borrowings	372,145	378,080
Accrued interest payable	1,410	2,426
Level 2 | Estimated Fair Value
Financial Assets
Investment securities held-to-maturity	267,874	270,912
Bank-owned life insurance	32,583	33,991
Financial Liabilities
Noninterest-bearing deposits	792,977	860,987
Interest-bearing deposits	1,993,583	1,842,138
Long-term debt	56,200	56,116
Level 3 | Estimated Fair Value
Financial Assets
Loans, net	2,366,306	2,311,956
Financial Liabilities
Time deposits	$ 242,109	$ 208,550

X

- Definition

Fair value portion of bank owned life insurance.

+ References

No definition available.

+ Details

Name:	alrs_BankOwnedLifeInsuranceFairValueDisclosure
Namespace Prefix:	alrs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Fair value portion of interest bearing deposits.

+ References

No definition available.

+ Details

Name:	alrs_InterestBearingDepositsFairValueDisclosure
Namespace Prefix:	alrs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Fair value portion of interest receivable.

+ References

No definition available.

+ Details

Name:	alrs_InterestPayableFairValueDisclosure
Namespace Prefix:	alrs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Fair value portion of interest receivable.

+ References

No definition available.

+ Details

Name:	alrs_InterestReceivableFairValueDisclosure
Namespace Prefix:	alrs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Fair value portion of non interest bearing deposits.

+ References

No definition available.

+ Details

Name:	alrs_NonInterestBearingDepositsFairValueDisclosure
Namespace Prefix:	alrs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Fair value portion of time deposits.

+ References

No definition available.

+ Details

Name:	alrs_TimeDepositsFairValueDisclosure
Namespace Prefix:	alrs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

No definition available.

+ Details

Name:	us-gaap_CashAndCashEquivalentsFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Fair value of investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (aa)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27232-111563

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(6))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5A
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=SL120269820-111563

+ Details

Name:	us-gaap_HeldToMaturitySecuritiesFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-URI https://asc.fasb.org/subtopic&trid=2196772

+ Details

Name:	us-gaap_LoansReceivableFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

Name:	us-gaap_LongTermDebtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_ShorttermDebtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_FairValueByMeasurementBasisAxis=us-gaap_CarryingReportedAmountFairValueDisclosureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByMeasurementBasisAxis=us-gaap_EstimateOfFairValueFairValueDisclosureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: