ServisFirst Bancshares, Inc. Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Loans (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
Note 5 - Loans (Details Textual) - USD ($)	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss	$ 158,092,000	$ 152,272,000	$ 158,092,000	$ 152,272,000	$ 155,892,000	$ 153,317,000	$ 148,965,000	$ 146,297,000
Financing Receivable, Credit Loss, Expense (Reversal)	5,353,000	6,654,000	9,721,000	10,851,000
Unfunded Loan Commitment [Member]
Financing Receivable, Allowance for Credit Loss	1,100,000		1,100,000			$ 575,000
Financing Receivable, Credit Loss, Expense (Reversal)	$ 336,000	$ 0	$ 503,000	$ 0

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.