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Note 9 - Deposits - Schedule of Deposit Liabilities (Details) - USD ($)
$ in Thousands

Mar. 31, 2024

Dec. 31, 2023

Noninterest-bearing checking

$ 618,526

$ 654,048

Interest-bearing checking

^[1]

188,050

244,028

Savings

153,025

151,630

Money market

^[2]

364,944

359,063

Certificates of deposit less than $100,000

^[3]

579,153

587,858

Certificates of deposit of $100,000 through $250,000

424,463

429,373

Certificates of deposit greater than $250,000

^[4]

108,763

79,540

Escrow accounts related to mortgages serviced

^[5]

28,373

16,783

Total deposits

$ 2,465,297

$ 2,522,323

[1]	Includes $0.0 and $70.2 million of brokered deposits at March 31, 2024 and December 31, 2023, respectively.
[2]	Includes $8.0 million and $1,000 of brokered deposits at March 31, 2024 and December 31, 2023, respectively.
[3]	Includes $331.3 million and $361.3 million of brokered CDs at March 31, 2024 and December 31, 2023, respectively.
[4]	CDs that meet or exceed the FDIC insurance limit.
[5]	Noninterest-bearing checking.

X

- Definition

Amount of the escrow accounts related to mortgages serviced noninterest-bearing deposit liabilities.

+ References

No definition available.

+ Details

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Namespace Prefix:	fsbw_
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Balance Type:	credit
Period Type:	instant

X

- Definition

The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(12))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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X

- Definition

Amount of deposits in accounts that offer many of the same services as checking accounts although transactions may be somewhat more limited, share some of the characteristics of a money market fund and are insured by the Federal government, also known as money market accounts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(12))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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X

- Definition

Amount of interest bearing deposits with no stated maturity, which may include passbook and statement savings accounts and money-market deposit accounts (MMDAs).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(12))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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X

- Definition

Amount of interest-bearing domestic checking deposit liabilities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(12))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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X

- Definition

Amount of noninterest-bearing domestic checking deposit liabilities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(12))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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X

- Definition

Amount of time deposit liabilities, including certificates of deposit, in denominations of $100,000 or more.

+ References

No definition available.

+ Details

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X

- Definition

Amount of time deposit liabilities, including certificates of deposit, in denominations that meet or exceed the Federal Deposit Insurance Corporation (FDIC) insurance limit.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-SubTopic 405
-Topic 942
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478353/942-405-50-1

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X

- Definition

Amount of time deposit liabilities, including certificates of deposit, in denominations of less than $100,000.

+ References

No definition available.

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