ServisFirst Bancshares, Inc. Annual report [Section 13 and 15(d), not S-K Item 405]

Note 3 - Loans - Loans Modified During Period (Details)

Note 3 - Loans - Loans Modified During Period (Details) - USD ($) $ in Thousands	12 Months Ended		24 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024
Modified Amortized Cost, percent	0.17%	0.37%
Commercial Real Estate Portfolio Segment [Member]
Total payment deferral	$ 1,403	$ 0
Modified Amortized Cost, percent	0.10%	0.24%
Commercial Real Estate Portfolio Segment [Member] \| Minimum [Member]
Financing Receivable, Modified, Term Extension (Year)	4 years		1 year
Commercial Real Estate Portfolio Segment [Member] \| Maximum [Member]
Financing Receivable, Modified, Term Extension (Year)	95 years		65 years
Real Estate Portfolio Segment[Member] \| Construction Loans [Member]
Total payment deferral	$ 0	$ 0
Real Estate Portfolio Segment[Member] \| Owner Occupied Commercial [Member]
Total payment deferral	$ 16	$ 49
Modified Amortized Cost, percent	0.07%	0.03%
Real Estate Portfolio Segment[Member] \| One to Four Family [Member]
Total payment deferral	$ 9	$ 0
Real Estate Portfolio Segment[Member] \| Non-owner Occupied Commercial [Member]
Total payment deferral	$ 0	$ 59
Modified Amortized Cost, percent		0.10%
Real Estate Portfolio Segment[Member] \| Other Mortgages [Member]
Modified Amortized Cost, percent	0.00%
Real Estate Portfolio Segment[Member] \| Minimum [Member] \| Owner Occupied Commercial [Member]
Financing Receivable, Modified, Term Extension (Year)	5 years		3 years
Real Estate Portfolio Segment[Member] \| Minimum [Member] \| One to Four Family [Member]
Financing Receivable, Modified, Term Extension (Year)	3 years
Real Estate Portfolio Segment[Member] \| Minimum [Member] \| Non-owner Occupied Commercial [Member]
Financing Receivable, Modified, Term Extension (Year)			2 years
Real Estate Portfolio Segment[Member] \| Maximum [Member] \| Owner Occupied Commercial [Member]
Financing Receivable, Modified, Term Extension (Year)	60 years		60 years
Real Estate Portfolio Segment[Member] \| Maximum [Member] \| One to Four Family [Member]
Financing Receivable, Modified, Term Extension (Year)	121 years
Real Estate Portfolio Segment[Member] \| Maximum [Member] \| Non-owner Occupied Commercial [Member]
Financing Receivable, Modified, Term Extension (Year)			36 years
Extended Maturity [Member]
Modified Amortized Cost	$ 3,985	$ 42,315
Extended Maturity [Member] \| Commercial Real Estate Portfolio Segment [Member]
Modified Amortized Cost	248	28,363
Extended Maturity [Member] \| Real Estate Portfolio Segment[Member] \| Owner Occupied Commercial [Member]
Modified Amortized Cost	3,562	3,021
Extended Maturity [Member] \| Real Estate Portfolio Segment[Member] \| Non-owner Occupied Commercial [Member]
Modified Amortized Cost		10,932
Extended Maturity [Member] \| Real Estate Portfolio Segment[Member] \| Other Mortgages [Member]
Modified Amortized Cost	175
Payment Deferral [Member]
Modified Amortized Cost	18,355	303
Payment Deferral [Member] \| Commercial Real Estate Portfolio Segment [Member]
Modified Amortized Cost	12,354	0
Payment Deferral [Member] \| Real Estate Portfolio Segment[Member] \| Owner Occupied Commercial [Member]
Modified Amortized Cost	5,827	0
Payment Deferral [Member] \| Real Estate Portfolio Segment[Member] \| Non-owner Occupied Commercial [Member]
Modified Amortized Cost		303
Payment Deferral [Member] \| Real Estate Portfolio Segment[Member] \| Other Mortgages [Member]
Modified Amortized Cost	174
New Origination [Member]
Modified Amortized Cost	96	0
New Origination [Member] \| Commercial Real Estate Portfolio Segment [Member]
Modified Amortized Cost	0	0
New Origination [Member] \| Real Estate Portfolio Segment[Member] \| Owner Occupied Commercial [Member]
Modified Amortized Cost	0	0
New Origination [Member] \| Real Estate Portfolio Segment[Member] \| Non-owner Occupied Commercial [Member]
Modified Amortized Cost		0
New Origination [Member] \| Real Estate Portfolio Segment[Member] \| Other Mortgages [Member]
Modified Amortized Cost	96
Extended Maturity and Payment Deferral [Member]
Modified Amortized Cost	22,436	42,618
Extended Maturity and Payment Deferral [Member] \| Commercial Real Estate Portfolio Segment [Member]
Modified Amortized Cost	12,602	28,363
Extended Maturity and Payment Deferral [Member] \| Real Estate Portfolio Segment[Member] \| Owner Occupied Commercial [Member]
Modified Amortized Cost	9,389	3,021
Extended Maturity and Payment Deferral [Member] \| Real Estate Portfolio Segment[Member] \| Non-owner Occupied Commercial [Member]
Modified Amortized Cost		$ 11,234
Extended Maturity and Payment Deferral [Member] \| Real Estate Portfolio Segment[Member] \| Other Mortgages [Member]
Modified Amortized Cost	$ 445