ServisFirst Bancshares, Inc. Quarterly report [Sections 13 or 15(d)]

Note 5 - Loans - Loans Modified During Period (Details)

Note 5 - Loans - Loans Modified During Period (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Financing Receivable, Modified in Period, Amount	$ 11,114	$ 18,379
Total payment deferral	$ 11,114	$ 18,379
Term extensions	0.09%	0.15%
Extended Maturity [Member]
Financing Receivable, Modified in Period, Amount	$ 0	$ 18,379
Total payment deferral	0	18,379
Payment Deferral [Member]
Financing Receivable, Modified in Period, Amount	11,114	0
Total payment deferral	11,114	0
Commercial Real Estate Portfolio Segment [Member] \| Commercial, Financial, and Agricultural Loans [Member]
Financing Receivable, Modified in Period, Amount	0	5,568
Total payment deferral	0	5,568
Total Payment Deferral	$ 0	$ 0
Term extensions	0.00%	0.05%
Commercial Real Estate Portfolio Segment [Member] \| Commercial, Financial, and Agricultural Loans [Member] \| Minimum [Member]
Financing Receivable, Modified, Term Extension (Month)		1 month
Term Extensions (Month)		1 month
Commercial Real Estate Portfolio Segment [Member] \| Commercial, Financial, and Agricultural Loans [Member] \| Maximum [Member]
Financing Receivable, Modified, Term Extension (Month)		6 months
Term Extensions (Month)		6 months
Commercial Real Estate Portfolio Segment [Member] \| Commercial, Financial, and Agricultural Loans [Member] \| Extended Maturity [Member]
Financing Receivable, Modified in Period, Amount	$ 0	$ 5,568
Total payment deferral	0	5,568
Commercial Real Estate Portfolio Segment [Member] \| Commercial, Financial, and Agricultural Loans [Member] \| Payment Deferral [Member]
Financing Receivable, Modified in Period, Amount	0	0
Total payment deferral	0	0
Real Estate Portfolio Segment[Member] \| Construction Loans [Member]
Financing Receivable, Modified in Period, Amount		973
Total payment deferral		973
Total Payment Deferral	0	$ 0
Term extensions		0.01%
Real Estate Portfolio Segment[Member] \| Construction Loans [Member] \| Extended Maturity [Member]
Financing Receivable, Modified in Period, Amount	0	$ 973
Total payment deferral	0	973
Real Estate Portfolio Segment[Member] \| Construction Loans [Member] \| Payment Deferral [Member]
Financing Receivable, Modified in Period, Amount	0	0
Total payment deferral	0	0
Real Estate Portfolio Segment[Member] \| Owner Occupied Commercial [Member]
Financing Receivable, Modified in Period, Amount		1,501
Total payment deferral		1,501
Total Payment Deferral	$ 132	$ 0
Term extensions	0.09%	0.01%
Real Estate Portfolio Segment[Member] \| Owner Occupied Commercial [Member] \| Maximum [Member]
Financing Receivable, Modified in Period, Amount	$ 11,114
Total payment deferral	11,114
Real Estate Portfolio Segment[Member] \| Owner Occupied Commercial [Member] \| Extended Maturity [Member]
Financing Receivable, Modified in Period, Amount	0	$ 1,501
Total payment deferral	0	1,501
Real Estate Portfolio Segment[Member] \| Owner Occupied Commercial [Member] \| Payment Deferral [Member]
Financing Receivable, Modified in Period, Amount	11,114	0
Total payment deferral	11,114	0
Real Estate Portfolio Segment[Member] \| One to Four Family [Member]
Financing Receivable, Modified in Period, Amount	0	424
Total payment deferral	0	424
Total Payment Deferral	$ 0	$ 0
Term extensions	0.00%	0.00%
Financing Receivable, Modified, Term Extension (Month)		12 months
Term Extensions (Month)		12 months
Real Estate Portfolio Segment[Member] \| One to Four Family [Member] \| Extended Maturity [Member]
Financing Receivable, Modified in Period, Amount	$ 0	$ 424
Total payment deferral	0	424
Real Estate Portfolio Segment[Member] \| One to Four Family [Member] \| Payment Deferral [Member]
Financing Receivable, Modified in Period, Amount	0	0
Total payment deferral	0	0
Real Estate Portfolio Segment[Member] \| Non-owner Occupied Commercial [Member]
Financing Receivable, Modified in Period, Amount	0	9,913
Total payment deferral	0	9,913
Total Payment Deferral	$ 0	$ 0
Term extensions	0.00%	0.08%
Real Estate Portfolio Segment[Member] \| Non-owner Occupied Commercial [Member] \| Extended Maturity [Member]
Financing Receivable, Modified in Period, Amount	$ 0	$ 9,913
Total payment deferral	0	9,913
Real Estate Portfolio Segment[Member] \| Non-owner Occupied Commercial [Member] \| Payment Deferral [Member]
Financing Receivable, Modified in Period, Amount	0	0
Total payment deferral	$ 0	$ 0