ServisFirst Bancshares (SFBS) 10-K 25 Feb 22 2021 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2021	Feb. 22, 2022	Jun. 30, 2021
Document Information [Line Items]
Entity Central Index Key	0001430723
Entity Registrant Name	ServisFirst Bancshares, Inc.
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2021
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Document Transition Report	false
Entity File Number	001-36452
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	26-0734029
Entity Address, Address Line One	2500 Woodcrest Place
Entity Address, City or Town	Birmingham
Entity Address, State or Province	AL
Entity Address, Postal Zip Code	35209
City Area Code	205
Local Phone Number	949-0302
Title of 12(b) Security	Common stock, par value $.001 per share
Trading Symbol	SFBS
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 3,377,202,000
Entity Common Stock, Shares Outstanding		54,273,091
Auditor Name	Dixon Hughes Goodman LLP
Auditor Location	Atlanta, Georgia
Auditor Firm ID	57
ICFR Auditor Attestation Flag	true

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
ASSETS
Cash and due from banks	$ 56,934	$ 93,655
Interest-bearing balances due from depository institutions	4,106,790	2,115,985
Federal funds sold	58,372	1,771
Cash and cash equivalents	4,222,096	2,211,411
Available for sale debt securities, at fair value	842,570	886,688
Held to maturity debt securities (fair value of $466,286 at December 31, 2021 and $250 at December 31, 2020)	462,957	250
Restricted equity securities	7,311	0
Mortgage loans held for sale	1,114	14,425
Loans	9,532,934	8,465,688
Less: Allowance for credit losses	(116,660)	(87,942)
Loans, net	9,416,274	8,377,746
Premises and equipment, net	60,300	54,969
Accrued interest and dividends receivable	34,831	36,841
Deferred tax asset, net	37,772	31,072
Other real estate owned and repossessed assets	1,208	6,497
Bank owned life insurance contracts	283,074	276,387
Goodwill and other identifiable intangible assets	13,638	13,908
Other assets	65,661	22,460
Total assets	15,448,806	11,932,654
Liabilities:
Noninterest-bearing demand	4,799,767	2,788,772
Interest-bearing	7,653,069	7,186,952
Deposits, Total	12,452,836	9,975,724
Federal funds purchased	1,711,777	851,545
Other borrowings	64,706	64,748
Accrued interest and dividends payable	13,619	12,321
Other liabilities	53,853	35,464
Total liabilities	14,296,791	10,939,802
Stockholders' equity:
Preferred stock, par value $0.001 per share; 1,000,000 authorized and undesignated at December 31, 2021 and December 31, 2020	0	0
Common stock, par value $0.001 per share; 100,000,000 shares authorized; 54,227,060 shares issued and outstanding at December 31, 2021, and 53,943,751 shares issued and outstanding at December 31, 2020	54	54
Additional paid-in capital	226,397	223,856
Retained earnings	911,008	748,224
Accumulated other comprehensive income	14,056	20,218
Total stockholders' equity attributable to ServisFirst Bancshares, Inc.	1,151,515	992,352
Noncontrolling interest	500	500
Total stockholders' equity	1,152,015	992,852
Total liabilities and stockholders' equity	$ 15,448,806	$ 11,932,654

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Held to maturity debt securities, fair value	$ 466,286	$ 250
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, undesignated (in shares)	1,000,000	1,000,000
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	54,227,060	53,943,751
Common stock, shares outstanding (in shares)	54,227,060	53,943,751

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Interest income:
Interest and fees on loans	$ 385,721	$ 362,664	$ 354,308
Taxable securities	25,413	22,122	17,008
Nontaxable securities	302	739	1,429
Federal funds sold	29	332	6,038
Other interest and dividends	4,840	3,165	12,020
Total interest income	416,305	389,022	390,803
Interest expense:
Deposits	26,569	45,230	90,958
Borrowed funds	5,233	5,755	12,200
Total interest expense	31,802	50,985	103,158
Net interest income	384,503	338,037	287,645
Provision for credit losses	31,517	42,434	22,638
Net interest income after provision for credit losses	352,986	295,603	265,007
Noninterest income:
Securities gains	620	0	27
Increase in cash surrender value life insurance	6,642	6,310	3,746
Other operating income	4,664	1,615	1,743
Total noninterest income	33,452	30,116	23,982
Noninterest expenses:
Salaries and employee benefits	67,728	61,414	57,783
Equipment and occupancy expense	11,404	10,070	9,272
Third party processing and other services	16,362	13,778	11,234
Professional services	3,891	4,242	4,235
FDIC and other regulatory assessments	5,679	4,354	2,975
Other real estate owned expense	868	2,163	415
Other operating expenses	27,157	15,490	16,214
Total noninterest expenses	133,089	111,511	102,128
Income before income taxes	253,349	214,208	186,861
Provision for income taxes	45,615	44,639	37,618
Net income	207,734	169,569	149,243
Dividends on preferred stock	62	63	63
Net income available to common stockholders	$ 207,672	$ 169,506	$ 149,180
Basic earnings per common share (in dollars per share)	$ 3.83	$ 3.15	$ 2.79
Diluted earnings per common share (in dollars per share)	$ 3.82	$ 3.13	$ 2.76
Deposit Account [Member]
Noninterest income:
Noninterest income	$ 6,839	$ 7,528	$ 7,029
Mortgage Banking [Member]
Noninterest income:
Noninterest income	7,340	8,747	4,361
Credit Card [Member]
Noninterest income:
Noninterest income	$ 7,347	$ 5,916	$ 7,076

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net income	$ 207,734	$ 169,569	$ 149,243
Other comprehensive (loss) income, net of tax:
Unrealized net holding (losses) gains arising during period from securities available for sale, net of tax of $(2,966), $3,845 and $2,788 for 2021, 2020, and 2019, respectively	(11,161)	14,469	10,511
Amortization of net unrealized gains on securities transferred from available-for-sale to held-to-maturity, net of tax of $319 for 2021	(1,196)	0	0
Reclassification adjustment for securities transferred from available-for-sale to held-to-maturity net of tax of $1,480 for 2021	5,705	0	0
Reclassification adjustment for net gains (losses) on call and sale of securities, net of tax of $130 and $(6), 2021 and 2019, respectively	490	0	(21)
Other comprehensive (loss) income, net of tax	(6,162)	14,469	10,490
Comprehensive income	$ 201,572	$ 184,038	$ 159,733

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Unrealized holding gain (loss) from available for sale securities, tax	$ (2,966)	$ 3,845	$ 2,788
Amortization of net unrealized gains (losses) on securities transferred from available-for-sale to held-to-maturity, tax	319
Reclassification adjustment of net unrealized gains (losses) on securities transferred from available-for-sale to held-to-maturity, tax	1,480
Reclassification adjustment for net (gains) losses on sale of securities available-for-sale, tax	$ 130		$ (6)

Consolidated Statement of Stock

Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Cumulative Effect, Period of Adoption, Adjustment [Member]Common Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]Preferred Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]Additional Paid-in Capital [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]AOCI Attributable to Parent [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]Noncontrolling Interest [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member]	Preferred Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2018								53,375,195
Balance at Dec. 31, 2018								$ 53	$ 0	$ 218,521	$ 500,868	$ (4,741)	$ 502	$ 715,203
Common dividends paid								0	0	0	(24,053)	0	0	(24,053)
Common dividends declared								0	0	0	(9,384)	0	0	(9,384)
Preferred dividends paid								$ 0	0	0	(63)	0	0	(63)
Issue restricted shares pursuant to stock incentives, net of forfeitures (in shares)								20,164
Issue restricted shares pursuant to stock incentives, net of forfeitures								$ 0	0	0	0	0	0	0
Issue shares of common stock upon exercise of stock options (in shares)								228,381
Issue shares of common stock upon exercise of stock options								$ 1	0	2,122	0	0	0	2,123
Shares of common stock withheld in net settlement upon exercise of stock options								0	0	(1,977)	0	0	0	(1,977)
Stock-based compensation expense								0	0	1,100	0	0	0	1,100
Other comprehensive income (loss), net of tax								0	0	0	0	10,490	0	10,490
Net income								$ 0	0	0	149,243	0		149,243
Net income attributable to noncontrolling interest													0
Profit loss														149,243
Other comprehensive income, net of tax														10,490
Balance (in shares) at Dec. 31, 2019								53,623,740
Balance (Accounting Standards Update 2016-13 [Member]) at Dec. 31, 2019	$ 0	$ 0	$ 0	$ 1,124	$ 0	$ 0	$ 1,124
Balance at Dec. 31, 2019								$ 54	0	219,766	616,611	5,749	502	842,682
Common dividends paid								0	0	0	(28,230)	0	0	(28,230)
Common dividends declared								0	0	0	(10,787)	0	0	(10,787)
Preferred dividends paid								$ 0	0	0	(63)	0	0	(63)
Issue restricted shares pursuant to stock incentives, net of forfeitures (in shares)								33,195
Issue restricted shares pursuant to stock incentives, net of forfeitures								$ 0	0	0	0	0	0	0
Issue shares of common stock upon exercise of stock options (in shares)								286,816
Issue shares of common stock upon exercise of stock options								$ 0	0	3,487	0	0	0	3,487
Shares of common stock withheld in net settlement upon exercise of stock options								0	0	(729)	0	0	0	(729)
Stock-based compensation expense								0	0	1,332	0	0	0	1,332
Net income								0	0	0	169,569	0		169,569
Net income attributable to noncontrolling interest													0
Profit loss														169,569
Exit tax credit partnership								0	0	0	0	0	(2)	(2)
Other comprehensive income, net of tax								$ 0	0	0	0	14,469	0	14,469
Balance (in shares) at Dec. 31, 2020								53,943,751
Balance at Dec. 31, 2020								$ 54	0	223,856	748,224	20,218	500	992,852
Common dividends paid								0	0	0	(32,520)	0	0	(32,520)
Common dividends declared								0	0	0	(12,472)	0	0	(12,472)
Preferred dividends paid								$ 0	0	0	(62)	0	0	(62)
Issue restricted shares pursuant to stock incentives, net of forfeitures (in shares)								57,570
Issue restricted shares pursuant to stock incentives, net of forfeitures								$ 0	0	0	0	0	0	0
Issue shares of common stock upon exercise of stock options (in shares)								225,739
Issue shares of common stock upon exercise of stock options								$ 0	0	3,534	0	0	0	3,534
Shares of common stock withheld in net settlement upon exercise of stock options								0	0	(2,848)	0	0	0	(2,848)
Stock-based compensation expense								0	0	1,855	0	0	0	1,855
Net income								0	0	0	207,734	0		207,734
Net income attributable to noncontrolling interest													0
Profit loss														207,734
Other comprehensive income, net of tax								0	0	0	0	(6,162)	0	(6,162)
Dividends on nonvested restricted stock recognized as compensation expense								$ 0	0	0	104	0	0	104
Balance (in shares) at Dec. 31, 2021								54,227,060
Balance at Dec. 31, 2021								$ 54	$ 0	$ 226,397	$ 911,008	$ 14,056	$ 500	$ 1,152,015

Consolidated Statement of Sto_2

Consolidated Statement of Stockholders' Equity (Parentheticals) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Common dividends, per share (in dollars per share)	$ 0.60	$ 0.525	$ 0.45
Common dividends, per share declared (in dollars per share)	$ 0.23	$ 0.20	$ 0.175
Shares withheld in net settlement upon exercise of stock options (in shares)	52,261	19,484	60,419

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
OPERATING ACTIVITIES
Net income	$ 207,734	$ 169,569	$ 149,243
Adjustments to reconcile net income to net cash provided by
Deferred tax	(5,061)	(9,727)	(1,077)
Provision for credit losses	31,517	42,434	22,638
Depreciation	4,118	3,832	3,682
Accretion on acquired loans	0	(100)	(90)
Amortization of core deposit intangible	270	271	270
Net amortization of debt securities available for sale	14,665	5,605	3,095
Decrease (increase) in accrued interest and dividends receivable	2,010	(10,579)	(2,192)
Stock-based compensation expense	1,855	1,332	1,100
Increase in accrued interest payable	1,298	387	1,553
Proceeds from sale of mortgage loans held for sale	234,086	284,881	135,359
Originations of mortgage loans held for sale	(213,435)	(284,247)	(137,190)
Gain on call of securities available for sale	(620)	0	(27)
Gain on sale of mortgage loans held for sale	(7,340)	(8,747)	(4,361)
Net loss (gain) on sale of other real estate owned and repossessed assets	288	(8)	(122)
Write down of other real estate owned and repossessed assets	845	1,861	287
Operating losses of tax credit partnerships	4	4	8
Increase in cash surrender value of life insurance contracts	(6,642)	(6,310)	(3,746)
Net change in other assets, liabilities, and other operating activities	739	832	(4,155)
Net cash provided by operating activities	266,331	191,290	164,275
INVESTMENT ACTIVITIES
Purchase of debt securities available for sale	(416,903)	(334,596)	(293,832)
Proceeds from maturities, calls and paydowns of debt securities available for sale	177,166	220,993	117,265
Proceeds from sale of debt securities available for sale	5,000	0	18,920
Purchases of debt securities held to maturity	(290,769)	0	(250)
Proceeds from maturities, calls and paydowns of debt securities held to maturity	94,797	0	0
Purchases of restricted equity securities	(7,311)	0	0
Investment in tax credit partnership and SBIC	(43,912)	(636)	0
Increase in loans	(1,072,363)	(1,236,698)	(754,533)
Purchase of premises and equipment	(9,449)	(2,305)	(2,356)
Purchase of bank owned life insurance contracts	(45)	(60,682)	(75,000)
Proceeds from sale of other real estate owned and repossessed assets	2,695	2,853	1,437
Net cash used in investing activities	(1,561,094)	(1,411,071)	(988,349)
FINANCING ACTIVITIES
Net increase in non-interest-bearing deposits	2,010,995	1,038,893	192,538
Net increase in interest-bearing deposits	466,117	1,406,398	422,187
Net increase in federal funds purchased	860,232	380,796	182,024
Proceeds from issuance of 4% Subordinated Notes due October 21, 2030, net of issuance cost	0	34,750	0
Repayment of 5% Subordinated Notes due July 15, 2025	0	(34,710)	0
Proceeds from exercise of stock options	3,534	3,487	2,123
Taxes paid in net settlement of tax obligation upon exercise of stock options	(2,848)	(729)	(1,977)
Dividends paid on common stock	(32,520)	(28,230)	(24,053)
Dividends paid on preferred stock	(62)	(63)	(63)
Net cash provided by financing activities	3,305,448	2,800,592	772,779
Net increase in cash and cash equivalents	2,010,685	1,580,811	(51,295)
Cash and cash equivalents at beginning of period	2,211,411	630,600	681,895
Cash and cash equivalents at end of period	4,222,096	2,211,411	630,600
Cash paid/(received) for:
Interest	30,504	50,598	101,605
Income taxes	56,651	50,867	42,232
Income tax refund	(3)	(47)	(86)
NONCASH TRANSACTIONS
Other real estate acquired in settlement of loans	2,318	2,945	4,611
Internally financed sale of other real estate owned	3,779	40	0
Available-for-sale securities transferred to held-to-maturity portfolio	261,026	0	0
Dividends declared	$ 12,472	$ 10,787	$ 9,384

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows (Parentheticals)	Dec. 31, 2021
Subordinates Note Due October 21, 2030 [Member]
Debt instrument, interest rate	4.00%
Subordinated Notes Due July 15, 2025 [Member]
Debt instrument, interest rate	5.00%

Note 1 - Summary of Significant

Note 1 - Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Significant Accounting Policies [Text Block]	NOTE 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Nature of Operations ServisFirst Bancshares, Inc. (the “Company”) was formed on August 16, 2007 May 2005. 1, 1, 11. Reclassification Certain amounts reported in prior years have been reclassified to conform to the current year’s presentation. These reclassifications had no Basis of Presentation and Accounting Estimates To prepare consolidated financial statements in conformity with U.S. generally accepted accounting principles, management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and the disclosures provided, and future results could differ. The allowance for credit losses, valuation of deferred tax assets and the fair value of financial instruments are particularly subject to change. All numbers are in thousands except share and per share data. Basis of Consolidation The consolidated financial statements include the accounts of the Company and other entities in which it has a controlling financial interest. All significant intercompany balances and transactions have been eliminated in consolidation. Cash, Due from Banks, Interest-Bearing Balances due from Financial Institutions Cash and due from banks include cash on hand, cash items in process of collection, amounts due from banks and interest bearing balances due from financial institutions. For purposes of cash flows, cash and cash equivalents include cash and due from banks and federal funds sold. Generally, federal funds are purchased and sold for one The Bank is generally required to maintain reserve balances in cash or on deposit with the Federal Reserve Bank based on a percentage of deposits. However, in March 2020 zero March 26, 2020. Debt Securities Debt securities are classified based on the Company’s intention on the date of purchase. All debt securities classified as available-for-sale are recorded at fair value with any unrealized gains and losses reported in accumulated other comprehensive income (loss), net of the deferred income tax effects. Debt securities that the Company has the positive intent and ability to hold to maturity are classified as held-to-maturity and are carried at historical cost and adjusted for amortization of premiums and accretion of discounts. Transfers of debt securities into the held-to-maturity category from available-for-sale category are made at fair value at the date of transfer. The unrealized holding gain or loss at the date of transfer is retained in other comprehensive income and in the carrying value of the held-to-maturity securities. Such amounts are amortized over the remaining life of the security. Interest and dividends on securities, including amortization of premiums and accretion of discounts calculated under the effective interest method, are included in interest income. For certain securities, amortization of premiums and accretion of discounts is computed based on the anticipated life of the security which may Restricted Equity Securities Investments in restricted equity securities without a readily determinable market value are carried at cost. Mortgage Loans Held for Sale The Company classifies certain residential mortgage loans as held for sale. Typically, mortgage loans held for sale are sold to a third not In the course of originating mortgage loans and selling those loans in the secondary market, the Company makes various representations and warranties to the purchaser of the mortgage loans. Each loan is underwritten using government agency guidelines. Any exceptions noted during this process are remedied prior to sale. These representations and warranties also apply to underwriting the real estate appraisal opinion of value for the collateral securing these loans. Under the representations and warranties, failure by the Company to comply with the underwriting and/or appraisal standards could result in the Company being required to repurchase the mortgage loan or to reimburse the investor for losses incurred (make whole requests) if such failure cannot be cured by the Company within the specified period following discovery. The Company continues to experience an insignificant level of investor repurchase demands. There were no December 31, 2021 2020. Loans Loans are reported at unpaid principal balances, less unearned fees and the allowance for credit losses. Interest on all loans is recognized as income based upon the applicable rate applied to the daily outstanding principal balance of the loans. Interest income on nonaccrual loans is recognized on a cash basis or cost recovery basis until the loan is returned to accrual status. A loan may six not one The accrual of interest on loans is discontinued when there is a significant deterioration in the financial condition of the borrower and full repayment of principal and interest is not 90 not Troubled debt restructurings (“TDRs”) are concessions granted to borrowers in the normal course of business, which would not may six Allowance for Credit Losses ( ACL ) As described below under Recently Adopted Accounting Pronouncements, 2016 - 13 , Financial Instruments-Credit Losses (Topic 326 326 January 1, 2020. ACL Debt Securities Management uses a systematic methodology to determine its ACL for held-to-maturity debt securities. The ACL is a valuation account that is deducted from the amortized cost basis to present the net amount expected to be collected on the held-to-maturity portfolio. Management considers the effects of past events, current conditions, and reasonable and supportable forecasts on the collectability of the portfolio. The Company’s estimate of its ACL involves a high degree of judgment; therefore, Management’s process for determining expected credit losses may December 31, 2021, no For available-for-sale debt securities in an unrealized loss position, the Company will first not not The Company excludes the accrued interest receivable balance from the amortized cost basis in measuring expected credit losses on debt securities and does not ACL Loans The ACL is based on the Company’s evaluation of the loan portfolios, past loan loss experience, current asset quality trends, known and inherent risks in the portfolio, adverse situations that may may Loans with similar risk characteristics are evaluated in pools and, depending on the nature of each identified pool, the Company utilizes a discounted cash flow (“DCF”), probability of default / loss given default (“PD/LGD”) or remaining life method. The historical loss experience estimate by pool is then adjusted by forecast factors that are quantitatively related to the Company’s historical credit loss experience, such as national unemployment rates and gross domestic product. Losses are predicted over a period of time determined to be reasonable and supportable, and at the end of the reasonable and supportable period losses are reverted to long term historical averages. The reasonable and supportable period and reversion period are re-evaluated each quarter by the Company and are dependent on the current economic environment among other factors. The estimated credit losses for each loan pool are then adjusted for changes in qualitative factors not Credit losses for loans that no one The Company measures expected credit losses over the contractual term of a loan, adjusted for estimated prepayments. The contractual term excludes expected extensions, renewals and modifications unless there is a reasonable expectation that a troubled debt restructuring will be executed. Credit losses are estimated on the amortized cost basis of loans, which includes the principal balance outstanding, purchase discounts and premiums and deferred loan fees and costs. Accrued interest receivable on loans is excluded from the estimate of credit losses. ACL Unfunded Loan Commitments The ACL is a liability account, calculated in accordance with ASC 326, No Foreclosed Real Estate Foreclosed real estate includes both formally foreclosed property and in-substance foreclosed property. At the time of foreclosure, foreclosed real estate is recorded at fair value less cost to sell, which becomes the property’s new basis. Any write downs based on the asset’s fair value at date of acquisition are charged to the allowance for credit losses. After foreclosure, these assets are carried at the lower of their new cost basis or fair value less cost to sell. Costs incurred in maintaining foreclosed real estate and subsequent adjustments to the carrying amount of the property are included in other operating expenses. Premises and Equipment Land is carried at cost. Premises and equipment are carried at cost less accumulated depreciation. Expenditures for additions and major improvements that significantly extend the useful lives of the assets are capitalized. Expenditures for repairs and maintenance are charged to expense as incurred. Assets which are disposed of are removed from the accounts and the resulting gains or losses are recorded in operations. Depreciation is calculated on a straight-line basis over the estimated useful lives of the related assets (3 to 39.5 years). Leasehold improvements are amortized on a straight-line basis over the lesser of the lease terms or the estimated useful lives of the improvements. Leases The Company leases certain office space and equipment under operating leases. Leases are recognized as a liability to make lease payments and as an asset representing the right to use the asset during the lease term, or “lease liability” and “right-of-use asset”, respectively. The lease liability is measured as the present value of remaining lease payments, discounted at the Company’s incremental borrowing rate. The Company reports its right-of-use assets in other assets and its lease liabilities in other liabilities. Certain of the leases include one not not None The Company does not 12 not Bank Owned Life Insurance ( BOLI ) BOLI is comprised of long-term life insurance contracts on the lives of certain current and past employees where the insurance policy benefit and ownership are retained by the employer. Its cash surrender value is an asset that the Company uses to partially offset the future cost of employee benefits. The cash surrender value accumulation on BOLI is permanently tax deferred if the policy is held to the insured person’s death and certain other conditions are met. Goodwill and Other Identifiable Intangible Assets The Company has recorded $13.6 million of goodwill at December 31, 2021 2015. not one Other identifiable intangible assets include a core deposit intangible recorded in connection with the acquisition of Metro Bancshares, Inc. The core deposit intangible is being amortized over 7 years and the estimated useful life is periodically reviewed for reasonableness. Derivatives and Hedging Activities As part of its overall interest rate risk management, the Company uses derivative instruments, which can include interest rate swaps, caps, and floors. ASC 815 10, The Company designates the derivative on the date the derivative contract is entered into as a hedge of the ( 1 2 The Company formally documents all relationships between hedging instruments and hedged items, as well as its risk-management objective and strategy for undertaking various hedge transactions. This process includes linking all derivatives that are designated as fair-value or cash-flow hedges to specific assets and liabilities on the balance sheet or to specific firm commitments or forecasted transactions. The Company also formally assesses, both at the hedge’s inception and on an ongoing basis, as necessary, whether the derivatives that are used in hedging transactions are highly effective in offsetting changes in fair values or cash flows of hedged items. When it is determined that a derivative is not 1 no 2 3 4 no 5 no When hedge accounting is discontinued because it is determined that the derivative no no The Company uses derivatives to hedge interest rate exposures associated with mortgage loan originations. Interest rate lock commitments related to loans that are originated for later sale are classified as derivatives. In the normal course of business, the Company regularly extends these rate lock commitments to customers during the loan origination process. The fair values of the Company’s rate lock commitments to customers as of December 31, 2021 2020 not not Revenue Recognition The Company records revenue from contracts with customers in accordance with ASC Topic 606, Revenue from Contracts with Customers 606” ) The majority of revenue-generating transactions are excluded from the scope of ASC 606, 606, • Deposit account service charges – represent service fees for monthly activity and maintenance on customer accounts. Attributes can be transaction-based, item-based or time-based. Revenue is recognized when our performance obligation is completed which is generally monthly for maintenance services or when a transaction is processed. Payment for such performance obligations are generally received at the time the performance obligations are satisfied. • Credit card rewards program membership fees – represent memberships in our credit card rewards program and are paid annually by our cardholders at the time they open an account and on each anniversary. Revenue is recognized ratably over the membership period. Other non-interest income primarily includes income on bank owned life insurance contracts, letter of credit fees and gains on sale of loans held for sale, none 606. Income Taxes Income tax expense is the total of the current year income tax due or refundable and the change in deferred tax assets and liabilities. Deferred tax assets and liabilities are the expected future tax amounts for the temporary differences between carrying amounts and tax bases of assets and liabilities, computed using enacted tax rates. A valuation allowance, if needed, reduces deferred tax assets to the amount expected to be realized. The Company follows the provisions of ASC 740 10, Income Taxes. 740 10 740 10 740 10 740 10 two first not second not 50% Stock-Based Compensation At December 31, 2021, 718 10, Compensation Stock Compensation Earnings per Common Share Basic earnings per common share are computed by dividing net income available to common stockholders by the weighted average number of common shares outstanding during the period. Diluted earnings per common share include the dilutive effect of additional potential common shares issuable under stock options and performance shares. Loan Commitments and Related Financial Instruments Financial instruments, which include credit card arrangements, commitments to make loans and standby letters of credit, are issued to meet customer financing needs. The face amount for these items represents the exposure to loss before considering customer collateral or ability to repay. Such financial instruments are recorded when they are funded. Instruments such as stand-by letters of credit are considered financial guarantees in accordance with FASB ASC 460 10. not Fair Value of Financial Instruments Fair values of financial instruments are estimated using relevant market information and other assumptions, as more fully disclosed in Note 21. Comprehensive Income Comprehensive income consists of net income and other comprehensive income. Accumulated comprehensive income, which is recognized as a separate component of equity, includes unrealized gains and losses on available-for-sale debt securities and amortization of unrealized gains and losses on debt securities transferred from available-for-sale to held-to-maturity at the time of transfer. Amounts reported as accumulated comprehensive income are shown net of taxes. Advertising Advertising costs are expensed as incurred. Advertising expense for the years ended December 31, 2021, 2020 2019 Recently Adopted Accounting Pronouncements In June 2016 , 2016 13, Financial Instruments-Credit Losses (Topic 326 326 326 January 1, 2020 . January 1, 2020 326 , 2020 , not January 1, 2020, In March 2020 , 2020 04, Reference Rate Reform (Topic 848 March 12 , 2020 December 31, 2022 . In August 2021 , No. 2021 06 Presentation of Financial Statements (Topic 205 ), Financial Services Depository and Lending (Topic 942 ), and Financial Services Investment Companies (Topic 946 ): Amendments to SEC Paragraphs Pursuant to SEC Final Rule Releases No. 33 - 10786, Amendments to Financial Disclosures about Acquired and Disposed Businesses, and No. 33 - 10835, Update of Statistical Disclosures for Bank and Savings and Loan Registrants No . 33 - 10786 No. 33 - 10835 not Recent Accounting Pronouncements In July 2021, 2021 05, Leases (Topic 842 Lessors-Certain Leases with Variable Lease Payments no not December 15, 2021 , not 2021 - 05

Note 2 - Debt Securities

Note 2 - Debt Securities	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	NOTE 2. DEBT SECURITIES The amortized cost and fair values of available-for-sale and held-to-maturity debt securities at December 31, 2021 2020 Gross Gross Amortized Unrealized Unrealized Market Cost Gain Loss Value December 31, 2021 (In Thousands) Debt Securities Available for Sale U.S. Treasury Securities $ 9,003 $ 101 $ - $ 9,104 Government Agency Securities 6,022 19 - 6,041 Mortgage-backed securities 424,372 3,474 (2,685 ) 425,161 State and municipal securities 21,531 173 (70 ) 21,634 Corporate debt 369,618 11,659 (647 ) 380,630 Total $ 830,546 $ 15,426 $ (3,402 ) $ 842,570 Debt Securities Held to Maturity U.S. Treasury Securities $ 149,263 $ 25 $ (668 ) $ 148,620 Mortgage-backed securities 310,641 5,251 (1,271 ) 314,621 State and municipal securities 3,053 2 (10 ) 3,045 Total $ 462,957 $ 5,278 $ (1,949 ) $ 466,286 December 31, 2020 Debt Securities Available for Sale U.S Treasury Securities $ 13,993 $ 364 $ - $ 14,357 Government Agency Securities 15,228 230 - 15,458 Mortgage-backed securities 477,407 17,720 (18 ) 495,109 State and municipal securities 37,671 444 - 38,115 Corporate debt 316,857 7,296 (504 ) 323,649 Total $ 861,156 $ 26,054 $ (522 ) $ 886,688 Debt Securities Held to Maturity State and municipal securities 250 - - 250 Total $ 250 $ - $ - $ 250 During the third 2021, No All mortgage-backed debt securities are issued by government sponsored enterprises (GSEs) such as Federal National Mortgage Association, Government National Mortgage Association, Federal Home Loan Bank, and Federal Home Loan Mortgage Corporation. At year-end 2021 2020, no 10% The amortized cost and fair value of debt securities as of December 31, 2021 2020 may may December 31, 2021 December 31, 2020 Amortized Cost Market Value Amortized Cost Market Value (In Thousands) Debt securities available for sale Due within one year $ 32,913 $ 33,232 $ 30,797 $ 31,060 Due from one to five years 31,760 32,307 59,828 61,481 Due from five to ten years 338,407 348,594 288,002 293,886 Due after ten years 3,094 3,276 5,122 5,152 Mortgage-backed securities 424,372 425,161 477,407 495,109 $ 830,546 $ 842,570 $ 861,156 $ 886,688 Debt securities held to maturity Due within one year $ 250 $ 250 $ 250 $ 250 Due from one to five years 49,663 49,419 - - Due from five to ten years 102,403 101,996 - - Mortgage-backed securities 310,641 314,621 - - $ 462,957 $ 466,286 $ 250 $ 250 The following table shows the gross unrealized losses and fair value of debt securities, aggregated by category and length of time that securities have been in a continuous unrealized loss position at December 31, 2021 2020. Less Than Twelve Months Twelve Months or More Total Gross Gross Gross Unrealized Unrealized Unrealized Losses Fair Value Losses Fair Value Losses Fair Value (In Thousands) December 31, 2021 U.S. Treasury Securities $ (668 ) $ 123,698 $ - $ - $ (668 ) $ 123,698 Government Agency Securities - - - - - - Mortgage-backed securities (3,956 ) 437,489 - - (3,956 ) 437,489 State and municipal securities (71 ) 5,680 (9 ) 228 (80 ) 5,908 Corporate debt (647 ) 61,677 - - (647 ) 61,677 Total $ (5,342 ) $ 628,544 $ (9 ) $ 228 $ (5,351 ) $ 628,772 December 31, 2020 U.S. Treasury Securities $ - $ - $ - $ - $ - $ - Government Agency Securities - - - - - - Mortgage-backed securities (18 ) 3,667 - - (18 ) 3,667 State and municipal securities - - - - - - Corporate debt (504 ) 59,576 - - (504 ) 59,576 Total $ (522 ) $ 63,243 $ - $ - $ (522 ) $ 63,243 At December 31, 2021, not not not not may zero one December 31, 2021 not The following table summarizes information about sales and calls of debt securities. Years Ended December 31, 2021 2020 2019 (In Thousands) Sale and call proceeds $ 56,780 $ 27,857 $ 35,220 Gross realized gains $ 620 $ - $ 42 Gross realized losses - - 15 Net realized gain $ 620 $ - $ 27 The carrying value of debt securities pledged to secure public funds on deposits and for other purposes as required by law as of December 31, 2021 2020 Restricted equity securities is comprised entirely of a restricted investment in Federal Home Loan Bank of Atlanta stock for membership requirement.

Note 3 - Loans

Note 3 - Loans	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	NOTE 3. LOANS The loan portfolio is classified based on the underlying collateral utilized to secure each loan for financial reporting purposes. This classification is consistent with the Quarterly Report of Condition and Income filed by ServisFirst Bank with the Federal Deposit Insurance Corporation (FDIC). Commercial, financial and agricultural - Real estate construction Owner-occupied commercial real estate mortgage 1 4 Other real estate mortgage Consumer not In light of the U.S. and global economic crisis brought about by the COVID- 19 500 2021, March 21, 2021, May 28, 2021, April 2020. December 31, 2021 December 31, 2020, December 31, 2021 2020, December 31, 2021 2020, The composition of loans at December 31, 2021 2020 December 31, 2021 2020 (In Thousands) Commercial, financial and agricultural $ 2,984,053 $ 3,295,900 Real estate - construction 1,103,076 593,614 Real estate - mortgage: Owner-occupied commercial 1,874,103 1,693,428 1-4 family mortgage 826,765 711,692 Other mortgage 2,678,084 2,106,184 Total real estate - mortgage 5,378,952 4,511,304 Consumer 66,853 64,870 Total Loans 9,532,934 8,465,688 Less: Allowance for credit losses (116,660 ) (87,942 ) Net Loans $ 9,416,274 $ 8,377,746 Changes in the ACL during the years ended December 31, 2021, 2020 2019 Years Ended December 31, 2021 2020 2019 (In Thousands) Balance, beginning of year $ 87,942 $ 76,584 $ 68,600 Impact of adopting ASC 326 - (2,000 ) - Loans charged off (4,114 ) (29,568 ) (22,489 ) Recoveries 1,315 492 429 Allocation from LGP (1) - - 7,406 Provision for credit losses 31,517 42,434 22,638 Balance, end of year $ 116,660 $ 87,942 $ 76,584 ( 1 In 2019, As described in Note 1, Summary of Significant Accounting Policies 2016 13 January 1, 2020, not not The Company uses the discounted cash flow (“DCF”) method to estimate ACL for all loan pools except for commercial revolving lines of credit and credit cards. For all loan pools utilizing the DCF method, the Company utilizes and forecasts national unemployment rate as a loss driver. The Company also utilizes and forecasts GDP growth as a second December 31, 2021 2020, twelve six The Company uses a loss-rate method to estimate expected credit losses for its C&I lines of credit and credit card pools. The commercial revolving lines of credit pool incorporates a probability of default (“PD”) and loss given default (“LGD”) modeling approach. This approach involves estimating the pool average life and then using historical correlations of default and loss experience over time to calculate the lifetime PD and LGD. These two Each loan pool is adjusted for qualitative factors not Inherent risks in the loan portfolio will differ based on type of loan. Specific risk characteristics by loan portfolio segment are listed below: Commercial and industrial loans may may Real estate construction loans Real estate mortgage loans may Consumer loans Changes in the allowance for credit losses, segregated by loan type, during the years ended December 31, 2021 2020, Commercial, financial and Real estate - Real estate - agricultural construction mortgage Consumer Total (In Thousands) Year Ended December 31, 2021 Allowance for credit losses: Balance at December 31, 2020 $ 36,370 $ 16,057 $ 33,722 $ 1,793 $ 87,942 Charge-offs (3,453 ) (14 ) (279 ) (368 ) (4,114 ) Recoveries 1,135 52 86 42 1,315 Provision 7,817 10,899 12,300 501 31,517 Balance at December 31, 2021 $ 41,869 $ 26,994 $ 45,829 $ 1,968 $ 116,660 Year Ended December 31, 2020 Allowance for loan losses: Balance at December 31, 2019 $ 43,666 $ 2,768 $ 29,653 $ 497 $ 76,584 Impact of adopting ASC 326 (8,211 ) 6,212 (966 ) 965 (2,000 ) Charge-offs (23,936 ) (1,032 ) (4,397 ) (203 ) (29,568 ) Recoveries 252 32 140 68 492 Provision 24,599 8,077 9,292 466 42,434 Balance at December 31, 2020 $ 36,370 $ 16,057 $ 33,722 $ 1,793 $ 87,942 We maintain an ACL for credit losses on unfunded commercial lending commitments and letters of credit to provide for the risk of loss inherent in these arrangements. The allowance is computed using a methodology similar to that used to determine the ACL for loans, modified to take into account the probability of a drawdown on the commitment. The ACL on unfunded loan commitments is classified as a liability account on the balance sheet within other liabilities, while the corresponding provision for these credit losses is recorded as a component of other expense. The allowance for credit losses on unfunded commitments was $1.3 million and $2.2 million at December 31, 2021 2020, December 31, 2021 December 31, 2020. January 1, 2020, 2020 not The credit quality of the loan portfolio is summarized no ● Pass – loans which are well protected by the current net worth and paying capacity of the obligor (or obligors, if any) or by the fair value, less cost to acquire and sell, of any underlying collateral. ● Special Mention – loans with potential weakness that may, not not not ● Substandard – loans that exhibit well-defined weakness or weaknesses that presently jeopardize debt repayment. These loans are characterized by the distinct possibility that the institution will sustain some loss if the weaknesses are not ● Doubtful – loans that have all the weaknesses inherent in loans classified substandard, plus the added characteristic that the weaknesses make collection or liquidation in full on the basis of currently existing facts, conditions, and values highly questionable and improbable. The tables below presents loan balances classified by credit quality indicator, loan type and based on year of origination as of December 31, 2021 2020: December 31, 2021 2021 2020 2019 2018 2017 Prior Revolving Loans Total (In Thousands) Commercial, financial and agricultural Pass $ 800,822 $ 294,841 $ 209,086 $ 130,579 $ 114,870 $ 127,572 $ 1,216,153 $ 2,893,923 Special Mention 1,245 1,323 942 846 915 784 19,801 25,856 Substandard - 387 10,039 1,741 1,501 7,966 42,640 64,274 Doubtful - - - - - - - - Total Commercial, financial and agricultural $ 802,067 $ 296,551 $ 220,067 $ 133,166 $ 117,286 $ 136,322 $ 1,278,594 $ 2,984,053 Real estate - construction Pass $ 597,497 $ 260,723 $ 110,671 $ 16,452 $ 13,704 $ 17,356 $ 76,662 $ 1,093,065 Special Mention - - 6,594 2,500 - 917 - 10,011 Substandard - - - - - - - - Doubtful - - - - - - - - Total Real estate - construction $ 597,497 $ 260,723 $ 117,265 $ 18,952 $ 13,704 $ 18,273 $ 76,662 $ 1,103,076 Owner-occupied commercial Pass $ 406,473 $ 352,642 $ 231,197 $ 182,812 $ 162,648 $ 430,638 $ 96,860 $ 1,863,270 Special Mention 101 - 2,417 779 476 2,688 - 6,461 Substandard - - - - - 4,372 - 4,372 Doubtful - - - - - - - - Total Owner-occupied commercial $ 406,574 $ 352,642 $ 233,614 $ 183,591 $ 163,124 $ 437,698 $ 96,860 $ 1,874,103 1-4 family mortgage Pass $ 299,686 $ 117,579 $ 68,044 $ 46,954 $ 37,374 $ 37,970 $ 210,338 $ 817,945 Special Mention - 1,000 517 116 260 912 3,033 5,838 Substandard - 150 593 241 231 611 1,156 2,982 Doubtful - - - - - - - - Total 1-4 family mortgage $ 299,686 $ 118,729 $ 69,154 $ 47,311 $ 37,865 $ 39,493 $ 214,527 $ 826,765 Other mortgage Pass $ 882,849 $ 481,012 $ 411,426 $ 174,700 $ 272,555 $ 353,621 $ 81,202 $ 2,657,365 Special Mention - - 130 376 2,720 4,656 - 7,882 Substandard - - - 4,497 8,340 - - 12,837 Doubtful - - - - - - - - Total Other mortgage $ 882,849 $ 481,012 $ 411,556 $ 179,573 $ 283,615 $ 358,277 $ 81,202 $ 2,678,084 Consumer Pass $ 16,303 $ 4,845 $ 2,896 $ 983 $ 903 $ 3,649 $ 37,250 $ 66,829 Special Mention - - - - - 24 - 24 Substandard - - - - - - - - Doubtful - - - - - - - - Total Consumer $ 16,303 $ 4,845 $ 2,896 $ 983 $ 903 $ 3,673 $ 37,250 $ 66,853 Total Loans Pass $ 3,003,630 $ 1,511,642 $ 1,033,320 $ 552,480 $ 602,054 $ 970,806 $ 1,718,465 $ 9,392,397 Special Mention 1,346 2,323 10,600 4,617 4,371 9,981 22,834 56,072 Substandard - 537 10,632 6,479 10,072 12,949 43,796 84,465 Doubtful - - - - - - - - Total Loans $ 3,004,976 $ 1,514,502 $ 1,054,552 $ 563,576 $ 616,497 $ 993,736 $ 1,785,095 $ 9,532,934 December 31, 2020 2020 2019 2018 2017 2016 Prior Revolving Loans Total (In Thousands) Commercial, financial and agricultural Pass $ 1,260,341 $ 332,690 $ 229,838 $ 169,616 $ 89,893 $ 137,021 $ 988,093 $ 3,207,492 Special Mention 2,551 1,404 10 253 163 281 14,948 19,610 Substandard 569 10,639 617 5,447 963 2,038 48,525 68,798 Doubtful - - - - - - - - Total Commercial, financial and agricultural $ 1,263,461 $ 344,733 $ 230,465 $ 175,316 $ 91,019 $ 139,340 $ 1,051,566 $ 3,295,900 Real estate - construction Pass $ 230,931 $ 222,357 $ 53,981 $ 16,361 $ 7,677 $ 13,816 $ 48,256 $ 593,379 Special Mention - - - - - - - - Substandard - - - - - 235 - 235 Doubtful - - - - - - - - Total Real estate - construction $ 230,931 $ 222,357 $ 53,981 $ 16,361 $ 7,677 $ 14,051 $ 48,256 $ 593,614 Owner-occupied commercial Pass $ 351,808 $ 271,645 $ 221,513 $ 198,935 $ 158,531 $ 417,743 $ 61,119 $ 1,681,294 Special Mention - - - 6,524 543 1,873 200 9,140 Substandard - - 12 780 - 1,962 240 2,994 Doubtful - - - - - - - - Total Owner-occupied commercial $ 351,808 $ 271,645 $ 221,525 $ 206,239 $ 159,074 $ 421,578 $ 61,559 $ 1,693,428 1-4 family mortgage Pass $ 179,314 $ 111,016 $ 70,381 $ 60,774 $ 27,985 $ 44,111 $ 212,616 $ 706,197 Special Mention 508 - - 105 481 - 1,112 2,206 Substandard 350 126 - 235 218 - 2,360 3,289 Doubtful - - - - - - - - Total 1-4 family mortgage $ 180,172 $ 111,142 $ 70,381 $ 61,114 $ 28,684 $ 44,111 $ 216,088 $ 711,692 Other mortgage Pass $ 470,086 $ 470,092 $ 250,945 $ 368,283 $ 180,244 $ 272,722 $ 68,721 $ 2,081,093 Special Mention - - - 2,793 541 8,566 - 11,900 Substandard - 50 4,589 8,552 - - - 13,191 Doubtful - - - - - - - - Total Other mortgage $ 470,086 $ 470,142 $ 255,534 $ 379,628 $ 180,785 $ 281,288 $ 68,721 $ 2,106,184 Consumer Pass $ 20,410 $ 4,421 $ 1,551 $ 1,671 $ 1,031 $ 3,615 $ 32,125 $ 64,824 Special Mention - - 15 - 31 - - 46 Substandard - - - - - - - - Doubtful - - - - - - - - Total Consumer $ 20,410 $ 4,421 $ 1,566 $ 1,671 $ 1,062 $ 3,615 $ 32,125 $ 64,870 Total Loans Pass $ 2,512,890 $ 1,412,221 $ 828,209 $ 815,640 $ 465,361 $ 889,028 $ 1,410,930 $ 8,334,279 Special Mention 3,059 1,404 25 9,675 1,759 10,720 16,260 42,902 Substandard 919 10,815 5,218 15,014 1,181 4,235 51,125 88,507 Doubtful - - - - - - - - Total Loans $ 2,516,868 $ 1,424,440 $ 833,452 $ 840,329 $ 468,301 $ 903,983 $ 1,478,315 $ 8,465,688 Nonperforming loans include nonaccrual loans and loans 90 December 31, 2021 2020 December 31, 2021 Performing Nonperforming Total (In Thousands) Commercial, financial and agricultural $ 2,979,671 $ 4,382 $ 2,984,053 Real estate - construction 1,103,076 - 1,103,076 Real estate - mortgage: Owner-occupied commercial 1,873,082 1,021 1,874,103 1-4 family mortgage 824,756 2,009 826,765 Other mortgage 2,673,428 4,656 2,678,084 Total real estate - mortgage 5,371,266 7,686 5,378,952 Consumer 66,824 29 66,853 Total $ 9,520,837 $ 12,097 $ 9,532,934 December 31, 2020 Performing Nonperforming Total (In Thousands) Commercial, financial and agricultural $ 3,284,180 $ 11,720 $ 3,295,900 Real estate - construction 593,380 234 593,614 Real estate - mortgage: Owner-occupied commercial 1,692,169 1,259 1,693,428 1-4 family mortgage 710,817 875 711,692 Other mortgage 2,101,379 4,805 2,106,184 Total real estate - mortgage 4,504,365 6,939 4,511,304 Consumer 64,809 61 64,870 Total $ 8,446,734 $ 18,954 $ 8,465,688 Loans by past due status as of December 31, 2021 2020 December 31, 2021 Past Due Status (Accruing Loans) Total Past Total Nonaccrual 30-59 Days 60-89 Days 90+ Days Due Nonaccrual Current Total Loans With No ACL (In Thousands) Commercial, financial and agricultural $ 516 $ 77 $ 39 $ 632 $ 4,343 $ 2,979,078 $ 2,984,053 $ 2,059 Real estate - construction - - - - - 1,103,076 1,103,076 - Real estate - mortgage: Owner-occupied commercial 143 - - 143 1,021 1,872,939 1,874,103 1,021 1-4 family mortgage - 703 611 1,314 1,398 824,053 826,765 483 Other mortgage - - 4,656 4,656 - 2,673,428 2,678,084 - Total real estate - mortgage 143 703 5,267 6,113 2,419 5,370,420 5,378,952 1,504 Consumer 93 23 29 145 - 66,708 66,853 - Total $ 752 $ 803 $ 5,335 $ 6,890 $ 6,762 $ 9,519,282 $ 9,532,934 $ 3,563 December 31, 2020 Past Due Status (Accruing Loans) Total Past Total Nonaccrual 30-59 Days 60-89 Days 90+ Days Due Nonaccrual Current Total Loans With No ACL (In Thousands) Commercial, financial and agricultural $ 92 $ 1,738 $ 11 $ 1,841 $ 11,709 $ 3,282,350 $ 3,295,900 $ 5,101 Real estate - construction - - - - 234 593,380 593,614 - Real estate - mortgage: Owner-occupied commercial - 995 - 995 1,259 1,691,174 1,693,428 467 1-4 family mortgage 61 1,073 104 1,238 771 709,683 711,692 512 Other mortgage 18 - 4,805 4,823 - 2,101,361 2,106,184 - Total real estate - mortgage 79 2,068 4,909 7,056 2,030 4,502,218 4,511,304 979 Consumer 64 13 61 138 - 64,732 64,870 - Total $ 235 $ 3,819 $ 4,981 $ 9,035 $ 13,973 $ 8,442,680 $ 8,465,688 $ 6,080 There was no December 31, 2021 2020. Loans that no Accounts ACL December 31, 2021 Real Estate Receivable Equipment Other Total Allocation (In Thousands) Commercial, financial and agricultural $ 13,067 $ 5,075 $ 18,533 $ 27,599 $ 64,274 $ 9,727 Real estate - mortgage: Owner-occupied commercial 4,372 - - - 4,372 1,371 1-4 family mortgage 2,982 - - - 2,982 163 Other mortgage 12,837 - - - 12,837 31 Total real estate - mortgage 20,191 - - - 20,191 1,565 Total $ 33,258 $ 5,075 $ 18,533 $ 27,599 $ 84,465 $ 11,292 Accounts ACL December 31, 2020 Real Estate Receivable Equipment Other Total Allocation (In Thousands) Commercial, financial and agricultural $ 19,373 $ 27,952 $ 16,877 $ 4,594 $ 68,796 $ 7,142 Real estate - construction 235 - - - 235 1 Real estate - mortgage: Owner-occupied commercial 2,012 971 - 12 2,995 499 1-4 family mortgage 3,264 - - 24 3,288 48 Other mortgage 13,191 - - - 13,191 - Total real estate - mortgage 18,467 971 - 36 19,474 547 Total $ 38,075 $ 28,923 $ 16,877 $ 4,630 $ 88,505 $ 7,690 On March 22, 2020, may 19. 4013 March 1, 2020 December 31, 2020 60 19 April 2020 4013 December 27, 2020, 2021, 4013 January 1, 2022 60 19 19 not 180 December 31, 2021, 19 19 December 31, 2021. TDRs at December 31, 2021 2020 Year Ended December 31, 2021 Pre- Post- Modification Modification Outstanding Outstanding Number of Recorded Recorded Contracts Investment Investment (In Thousands) Troubled Debt Restructurings Commercial, financial and agricultural 2 $ 1,155 $ 1,155 Real estate - construction - - - Real estate - mortgage: Owner-occupied commercial 1 991 991 1-4 family mortgage - - - Other mortgage - - - Total real estate - mortgage 1 991 991 Consumer - - - 3 $ 2,146 $ 2,146 Year ended December 31, 2020 Pre- Post- Modification Modification Outstanding Outstanding Number of Recorded Recorded Contracts Investment Investment (In Thousands) Troubled Debt Restructurings Commercial, financial and agricultural 2 $ 564 $ 564 Real estate - construction 1 357 357 Real estate - mortgage: Owner-occupied commercial 1 611 611 1-4 family mortgage - - - Other mortgage - - - Total real estate - mortgage 1 611 611 Consumer - - - 4 $ 1,532 $ 1,532 There were no loans which were modified in the previous twelve twelve December 31, 2021 December 31, 2020, 90 In the ordinary course of business, the Company has granted loans to certain related parties, including directors, and their affiliates. The interest rates on these loans were substantially the same as rates prevailing at the time of the transaction and repayment terms are customary for the type of loan. Changes in related party loans for the years ended December 31, 2021 2020 Years Ended December 31, 2021 2020 (In Thousands) Balance, beginning of year $ 36,969 $ 24,681 Additions 3,168 - Advances 90,553 41,183 Repayments (79,445 ) (28,895 ) Removal (65 ) - Balance, end of year $ 51,180 $ 36,969

Note 4 - Foreclosed Properties

Note 4 - Foreclosed Properties	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Real Estate Disclosure [Text Block]	NOTE 4. FORECLOSED PROPERTIES Other real estate and certain other assets acquired in foreclosure are carried at the lower of the recorded investment in the loan or fair value less estimated costs to sell the property. An analysis of foreclosed properties for the years ended December 31, 2021, 2020 2019 2021 2020 2019 (In Thousands) Balance at beginning of year $ 6,497 $ 8,178 $ 5,169 Transfers from loans and capitalized expenses 2,318 2,985 4,611 Foreclosed properties sold (6,474 ) (2,813 ) (1,437 ) Write downs and partial liquidations (1,133 ) (1,853 ) (165 ) Balance at end of year $ 1,208 $ 6,497 $ 8,178

Note 5 - Premises and Equipment

Note 5 - Premises and Equipment	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	NOTE 5. PREMISES AND EQUIPMENT Premises and equipment are summarized as follows: December 31, 2021 2020 (In Thousands) Land $ 5,830 $ 5,830 Building 38,261 36,365 Furniture and equipment 31,183 27,466 Leasehold improvements 13,400 10,789 Construction in progress 62 867 Total premises and equipment, cost 88,736 81,317 Accumulated depreciation (28,436 ) (26,348 ) Total premises and equipment, net $ 60,300 $ 54,969 The provisions for depreciation charged to occupancy and equipment expense for the years ended December 31, 2021, 2020 2019

Note 6 - Leases

Note 6 - Leases	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Lessee, Operating Leases [Text Block]	NOTE 6. LEASES The Company leases space under non-cancelable operating leases for several of its banking offices and certain office equipment. The Company reports its right-of-use asset in other assets and its lease liabilities in other liabilities in its Consolidated Balance Sheet. Supplemental balance sheet information related to operating leases is as follows: December 31, 2021 December 31, 2020 Right-of-use assets $ 17,916 $ 10,452 Lease liabilities $ 18,549 $ 10,645 Weighted average remaining lease term 6.8 4.9 Weighted average discount rate 2.46 % 3.2 % Lease costs during the years ended December 31, 2021 2020 2021 2020 Operating lease cost $ 4,009 $ 3,476 Short-term lease cost - 45 Variable lease cost 430 151 Sublease income (94 ) (93 ) Net lease cost $ 4,345 $ 3,579 The following table reconciles future undiscounted lease payments due under non-cancelable leases to the aggregate lease liability as of December 31, 2021: (In Thousands) 2022 $ 4,084 2023 3,520 2024 2,566 2025 2,481 2026 1,903 Thereafter 5,509 Total lease payments $ 20,063 Less: imputed interest (1,514 ) Present value of operating lease liabilities $ 18,549

Note 7 - Variable Interest Enti

Note 7 - Variable Interest Entities (VIEs)	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Disclosure of Variable Interest Entities [Text Block]	NOTE 7. VARIABLE INTEREST ENTITIES (VIEs) The Company utilizes special purpose entities (SPEs) that constitute investments in limited partnerships that undertake certain development projects to achieve federal and state tax credits. These SPEs are typically structured as VIEs and are thus subject to consolidation by the reporting enterprise that absorbs the majority of the economic risks and rewards of the VIE. To determine whether it must consolidate a VIE, the Company analyzes the design of the VIE to identify the sources of variability within the VIE, including an assessment of the nature of risks created by the assets and other contractual obligations of the VIE, and determines whether it will absorb a majority of that variability. The Company has invested in limited partnerships as a funding investor. The partnerships are single purpose entities that lend money to real estate investors for the purpose of acquiring and operating, or rehabbing, commercial property. The investments qualify for New Market Tax Credits under Internal Revenue Code Section 45D, 47, 42, not not not December 31, 2021 2020 2021, two two two December 31, 2021. December 31, 2021. December 31, 2020.

Note 8 - Deposits

Note 8 - Deposits	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Deposit Liabilities Disclosures [Text Block]	NOTE 8. DEPOSITS Deposits at December 31, 2021 2020 December 31, 2021 2020 (In Thousands) Noninterest-bearing demand $ 4,799,767 $ 2,788,772 Interest-bearing checking 6,707,778 6,276,910 Savings 131,955 89,418 Time deposits, $250,000 and under 256,185 273,301 Time deposits, over $250,000 507,151 497,323 Brokered time deposits 50,000 50,000 $ 12,452,836 $ 9,975,724 The scheduled maturities of time deposits at December 31, 2021 (In Thousands) 2022 $ 566,698 2023 174,332 2024 26,993 2025 10,039 2026 35,275 Total $ 813,336 At December 31, 2021 2020,

Note 9 - Federal Funds Purchase

Note 9 - Federal Funds Purchased	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Federal Funds Purchased [Text Block]	NOTE 9. FEDERAL FUNDS PURCHASED At Decemb er 31, 2021, December 31, 2020. December 31, 2021 December 31, 2020. At December 31, 2021, December 31, 2020. December 31, 2021,

Note 10 - Other Borrowings

Note 10 - Other Borrowings	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Short-term Debt [Text Block]	NOTE 10. OTHER BORROWINGS Other borrowings are comprised of: ● $30.0 million on the Company’s 4.5% Subordinated Notes due November 8, 2027, November 2017 may not November 8, 2022. ● $34.75 million of the Company’s 4% Subordinated Notes due October 21, 2030, October 2020 may not October 21, 2025. Debt is reported net of unamortized issuance costs of $44,000 and $64,000 as of December 31, 2021 2020,

Note 11 - SF Intermediate Holdi

Note 11 - SF Intermediate Holding Company, Inc., SF Holding 1, Inc., SF Realty 1, Inc., SF FLA Realty, Inc., SF GA Realty, Inc. and SF TN Realty, Inc.	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Investments in Subsidiaries [Text Block]	NOTE 11. SF INTERMEDIATE HOLDING COMPANY, INC., SF HOLDING 1, 1, In January 2012, 1, 1, September 2013, 1, May 2014, 1, February 2016, 1, February 2016, 1, 1, first 1, 1, 1,

Note 12 - Derivatives

Note 12 - Derivatives	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Derivative Instruments and Hedging Activities Disclosure [Text Block]	NOTE 12. DERIVATIVES The Company periodically enters into derivative contracts to manage exposures to movements in interest rates. The Company purchased an interest rate cap in May 2020 not one December 31, 2021, The Company has entered into forward loan sale commitments with secondary market investors to deliver loans on a “best efforts delivery” basis, which do not 30 not no December 31, 2021 December 31, 2020 not

Note 13 - Employee and Director

Note 13 - Employee and Director Benefits	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Share-based Payment Arrangement [Text Block]	NOTE 13. EMPLOYEE AND DIRECTOR BENEFITS The Company has a stock incentive plan, which is described below. The compensation cost that has been charged against income for the plan was approximately $1.9 million, $1.3 million and $1.1 million for the years ended December 31, 2021, 2020 2019, Stock Incentive Plan On March 23, 2009, 2009 2009 2009 2014, As of December 31, 2021, Stock-based compensation expense for stock-based awards is based on the grant-date fair value. For stock option awards, the fair value is estimated at the date of grant using the Black-Scholes-Merton valuation model. This model requires the input of highly subjective assumptions, changes to which can materially affect the fair value estimate. The fair value of each option granted is estimated on the date of grant using the Black-Scholes-Merton model based on the weighted-average assumptions for expected dividend yield, expected stock price volatility, risk-free interest rate and expected life of options granted. There were no grants of stock options during the years ended December 31, 2021 2020. 2019 2019 Expected price volatility 40.00 % Expected dividend yield 1.76 % Expected term (in years) 7 Risk-free rate 1.96 % The weighted average grant-date fair value of options granted during the year ended December 31, 2019 The following tables summarize stock option activity: Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (years) Aggregate Intrinsic Value (In Thousands) Year Ended December 31, 2021: Outstanding at beginning of year 641,450 $ 18.15 4.6 $ 16,985 Exercised (278,200 ) 12.58 2.8 20,131 Forfeited (10,000 ) 38.38 5.2 466 Outstanding at end of year 353,250 $ 19.28 3.8 $ 23,525 Exercisable at December 31, 2021: 264,000 $ 12.89 2.8 $ 19,353 Year Ended December 31, 2020: Outstanding at beginning of year 965,750 $ 15.20 4.9 $ 21,914 Exercised (306,300 ) 11.38 2.9 8,854 Forfeited (18,000 ) 30.79 6.1 171 Outstanding at end of year 641,450 $ 18.15 4.6 $ 16,985 Exercisable at December 31, 2020: 182,200 $ 12.86 3.5 $ 4,998 Year Ended December 31, 2019: Outstanding at beginning of year 1,238,750 $ 13.02 5.2 $ 23,355 Granted 36,000 34.04 9.6 132 Exercised (288,800 ) 7.56 2.5 8,534 Forfeited (20,200 ) 24.88 6.2 259 Outstanding at end of year 965,750 $ 15.20 4.9 $ 21,914 Exercisable at December 31, 2019: 278,500 $ 8.28 3.0 $ 8,355 Exercisable options at December 31, 2021 Range of Exercise Price Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (years) Aggregate Intrinsic Value (In Thousands) $ 5.00 - 6.00 49,000 $ 5.41 1.1 $ 3,897 6.00 - 7.00 53,500 6.92 2.6 4,174 15.00 - 16.00 81,000 15.41 3.0 5,632 17.00 - 18.00 21,500 17.17 3.3 1,457 18.00 - 19.00 6,000 18.49 3.7 732 19.00 - 20.00 49,000 19.16 4.1 3,223 25.00 - 26.00 4,000 25.41 4.7 238 264,000 $ 12.89 2.8 $ 19,353 As of December 31, 2021, December 31, 2021, Restricted Stock and Performance Shares The Company periodically grants restricted stock awards that vest upon service conditions. Dividend payments are made during the vesting period. The value of restricted stock is determined to be the current value of the Company’s stock, and this total value will be recognized as compensation expense over the vesting period. As of December 31, 2021, December 31, 2021, The Company periodically grants performance shares that give plan participants the opportunity to earn between 0% and 150% of the target number of performance shares granted based on the relative market performance of the Company’s stock, and are subject to the recipient’s continued employment through the end of the performance period. The number of performance shares earned is determined by reference to the Company’s total shareholder return relative to a peer group of other publicly traded banks and bank holding companies during the performance period. The performance period is generally three December 31, 2021, December 31, 2021, The following table summarizes restricted stock and performance stock activity: Restricted Stock Performance Stock Shares Weighted Average Grant Date Fair Value Shares Weighted Average Grant Date Fair Value Year Ended December 31, 2021: Non-vested at beginning of year 84,307 $ 34.92 - $ - Granted 69,295 48.92 12,437 37.05 Vested (14,274 ) 29.33 - - Forfeited (12,353 ) 39.60 - - Non-vested at end of year 126,975 $ 42.28 12,437 $ 37.05 Year Ended December 31, 2020: Non-vested at beginning of year 71,290 $ 32.24 - $ - Granted 33,695 33.91 - - Vested (20,178 ) 23.76 - - Forfeited (500 ) 34.09 - - Non-vested at end of year 84,307 $ 34.92 - $ - Year Ended December 31, 2019: Non-vested at beginning of year 42,576 $ 29.96 - $ - Granted 36,664 33.60 - - Vested (5,450 ) 20.92 - - Forfeited (2,500 ) 38.17 - - Non-vested at end of year 71,290 $ 32.24 - $ - Retirement Plans The Company has a retirement savings 401 21 may one June 15, 2005, may 2021, 2020 2019,

Note 14 - Regulatory Matters

Note 14 - Regulatory Matters	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Regulatory Capital Requirements under Banking Regulations [Text Block]	NOTE 14. REGULATORY MATTERS The Bank is subject to dividend restrictions set forth in the Alabama Banking Code and by the Alabama State Banking Department. Under such restrictions, the Bank may not, two December 31, 2021. The Bank is subject to various regulatory capital requirements administered by the state and federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possible additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Bank and the financial statements. Under regulatory capital adequacy guidelines and the regulatory framework for prompt corrective action, the Bank must meet specific capital guidelines involving quantitative measures of the Bank’s assets, liabilities, and certain off-balance-sheet items as calculated under regulatory accounting practices. The Bank’s capital amounts and classification under the prompt corrective guidelines are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. Quantitative measures established by regulation to ensure capital adequacy require the Bank to maintain minimum amounts and ratios (set forth in the table below) of common equity Tier 1 1 1 December 31, 2021, As of December 31, 2021, CET1, 1 1 December 31, 2021. The Company’s and Bank’s actual capital amounts and ratios are presented in the following table: Actual For Capital Adequacy Purposes To Be Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio As of December 31, 2021: CET I Capital to Risk Weighted Assets: Consolidated $ 1,123,826 9.95 % $ 508,027 4.50 % N/A N/A ServisFirst Bank 1,185,161 10.50 % 507,969 4.50 % $ 733,733 6.50 % Tier I Capital to Risk Weighted Assets: Consolidated 1,124,326 9.96 % 677,370 6.00 % N/A N/A ServisFirst Bank 1,185,661 10.50 % 677,292 6.00 % 903,056 8.00 % Total Capital to Risk Weighted Assets: Consolidated 1,306,992 11.58 % 903,160 8.00 % N/A N/A ServisFirst Bank 1,303,621 11.55 % 903,056 8.00 % 1,128,821 10.00 % Tier I Capital to Average Assets: Consolidated 1,124,326 7.39 % 608,883 4.00 % N/A N/A ServisFirst Bank 1,185,661 7.79 % 608,826 4.00 % 761,033 5.00 % As of December 31, 2020: CET I Capital to Risk Weighted Assets: Consolidated $ 958,300 10.50 % $ 410,816 4.50 % N/A N/A ServisFirst Bank 1,018,031 11.15 % 410,766 4.50 % $ 593,328 6.50 % Tier I Capital to Risk Weighted Assets: Consolidated 958,800 10.50 % 547,755 6.00 % N/A N/A ServisFirst Bank 1,018,531 11.16 % 547,688 6.00 % 730,250 8.00 % Total Capital to Risk Weighted Assets: Consolidated 1,113,690 12.20 % 730,340 8.00 % N/A N/A ServisFirst Bank 1,108,673 12.15 % 730,250 8.00 % 912,813 10.00 % Tier I Capital to Average Assets: Consolidated 958,800 8.23 % 465,980 4.00 % N/A N/A ServisFirst Bank 1,018,531 8.75 % 465,448 4.00 % 581,810 5.00 %

Note 15 - Other Operating Incom

Note 15 - Other Operating Income and Expenses	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Other Operating Income (Expense) 1 [Text Block]	NOTE 15. OTHER OPERATING INCOME AND EXPENSES The major components of other operating income and expense included in noninterest income and noninterest expense are as follows: Years Ended December 31, 2021 2020 2019 (In Thousands) Other Operating Income ATM fee income $ 1,443 $ 1,234 $ 1,001 Mark to market interest rate cap derivative 1,013 (656 ) - Gain (loss) on sale of fixed assets 433 9 5 Merchant services fees 1,231 565 415 Other 544 463 322 Total other operating income $ 4,664 $ 1,615 $ 1,743 Other Operating Expenses Other loan expenses $ 2,744 $ 4,886 $ 3,476 Customer and public relations 1,840 1,052 2,545 Sales and use tax 1,016 528 640 Write-down investment in tax credit partnerships 9,152 346 746 Telephone 453 541 1,131 Donations and contributions 544 506 837 Marketing 498 338 581 Supplies 504 495 572 Fraud and forgery losses 425 463 577 Directors fees 659 632 545 Postage 290 278 393 Other operational losses 144 1,662 36 Core processing deconverison expense 3,007 - - Other 5,881 3,763 4,135 Total other operating expenses $ 27,157 $ 15,490 $ 16,214

Note 16 - Income Taxes

Note 16 - Income Taxes	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Income Tax Disclosure [Text Block]	NOTE 16. INCOME TAXES The components of income tax expense are as follows: Year Ended December 31, 2021 2020 2019 (In Thousands) Current tax expense: Federal $ 45,248 $ 50,016 $ 36,683 State 5,428 4,350 2,012 Total current tax expense 50,676 54,366 38,695 Deferred tax (benefit) expense: Federal (5,596 ) (9,342 ) (166 ) State 535 (385 ) (911 ) Total deferred tax (benefit) (5,061 ) (9,727 ) (1,077 ) Total income tax expense $ 45,615 $ 44,639 $ 37,618 The Company’s total income tax expense differs from the amounts computed by applying the Federal income tax statutory rates to income before income taxes. A reconciliation of the differences is as follows: Year Ended December 31, 2021 Amount % of Pre-tax Earnings (In Thousands) Income tax at statutory federal rate $ 53,203 21.00 % Effect on rate of: State income tax, net of federal tax effect 4,952 1.95 % Tax-exempt income, net of expenses (242 ) (0.10 )% Bank-owned life insurance contracts (1,395 ) (0.55 )% Excess tax benefit from stock compensation (2,335 ) (0.92 )% Federal tax credits (11,019 ) (4.35 )% Other 2,451 0.97 % Effective income tax and rate $ 45,615 18.00 % Year Ended December 31, 2020 Amount % of Pre-tax Earnings (In Thousands) Income tax at statutory federal rate $ 44,984 21.00 % Effect on rate of: State income tax, net of federal tax effect 3,230 1.51 % Tax-exempt income, net of expenses (354 ) (0.17 )% Bank-owned life insurance contracts (1,325 ) (0.62 )% Excess tax benefit from stock compensation (1,306 ) (0.61 )% Federal tax credits (563 ) (0.26 )% Other (27 ) (0.01 )% Effective income tax and rate $ 44,639 20.84 % Year Ended December 31, 2019 Amount % of Pre-tax Earnings (In Thousands) Income tax at statutory federal rate $ 39,241 21.00 % Effect on rate of: State income tax, net of federal tax effect 822 0.44 % Tax-exempt income, net of expenses (461 ) (0.25 )% Bank-owned life insurance contracts (787 ) (0.42 )% Excess tax benefit from stock compensation (1,405 ) (0.75 )% Federal tax credits (170 ) (0.09 )% Other 378 0.20 % Effective income tax and rate $ 37,618 20.13 % The components of net deferred tax asset are as follows: December 31, 2021 2020 (In Thousands) Deferred tax assets: Allowance for credit losses $ 29,237 $ 21,600 Other real estate owned 520 728 Nonqualified equity awards 816 873 Nonaccrual interest 289 322 State tax credits 3,988 6,091 Deferred loan fees 5,087 5,875 Reserve for unfunded commitments 435 600 Accrued bonus 3,910 2,594 Capital loss carryforward 1,867 1,480 Lease liability 4,654 2,671 Deferred revenue 31 42 Other deferred tax assets 1,429 885 Total deferred tax assets 52,263 43,761 Deferred tax liabilities: Net unrealized gain on securities available for sale 3,723 5,360 Depreciation 4,872 4,011 Prepaid expenses 607 543 Investments 696 79 Right-of-use assets and other leasing transactions 4,495 2,622 Acquired intangible assets 6 74 Other deferred tax liabilities 92 - Total deferred tax liabilities 14,491 12,689 Net deferred tax assets $ 37,772 $ 31,072 The Company believes its net deferred tax asset is recoverable as of December 31, 2021 Pursuant to ASC 740 10 30 2 Income Taxes The Company and its subsidiaries file a consolidated U.S. Federal income tax return and various consolidated and separate company state income tax returns. The Company is currently open to audit under the statute of limitations by the Internal Revenue Service for the years ended December 31, 2018 2021. December 31, 2018 2021. no Accrued interest and penalties on unrecognized income tax benefits totaled $169,000 and $152,000 as of December 31, 2021 2020, December 31, 2021 December 31, 2020, not twelve The following table presents a summary of the changes during 2021, 2020 2019 2021 2020 2019 (In Thousands) Balance, beginning of year $ 3,238 $ 2,683 $ 2,133 Increases related to prior year tax positions 864 997 998 Decreases related to prior year tax positions - - - Increases related to current year tax positions - - - Settlements - - - Lapse of statute (443 ) (442 ) (448 ) Balance, end of year $ 3,659 $ 3,238 $ 2,683

Note 17 - Commitments and Conti

Note 17 - Commitments and Contingencies	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	NOTE 17. COMMITMENTS AND CONTINGENCIES Loan Commitments The Company is a party to financial instruments with off-balance-sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit, credit card arrangements, and standby letters of credit. Such commitments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the balance sheets. A summary of the Company’s approximate commitments and contingent liabilities is as follows: 2021 2020 2019 (In Thousands) Commitments to extend credit $ 3,515,818 $ 2,606,258 $ 2,303,788 Credit card arrangements 366,525 286,128 248,617 Standby letters of credit and financial guarantees 61,856 66,208 48,394 Total $ 3,944,199 $ 2,958,594 $ 2,600,799 Commitments to extend credit, credit card arrangements, commercial letters of credit and standby letters of credit all include exposure to some credit loss in the event of nonperformance of the customer. The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet financial instruments. Because these instruments have fixed maturity dates, and because many of them expire without being drawn upon, they do not

Note 18 - Concentrations of Cre

Note 18 - Concentrations of Credit	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Concentration Risk Disclosure [Text Block]	NOTE 18. CONCENTRATIONS OF CREDIT The Company originates primarily commercial, residential, and consumer loans to customers in the Company’s market area. The ability of the majority of the Company’s customers to honor their contractual loan obligations is dependent on the economy in the market area. The Company’s loan portfolio is concentrated primarily in loans secured by real estate, principally secured by real estate in the Company’s primary market areas. In addition, a substantial portion of the other real estate owned is located in that same market. Accordingly, the ultimate collectability of the loan portfolio and the recovery of the carrying amount of other real estate owned are susceptible to changes in market conditions in the Company’s primary market area.

Note 19 - Earnings Per Common S

Note 19 - Earnings Per Common Share	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Earnings Per Share [Text Block]	NOTE 19. EARNINGS PER COMMON SHARE Basic earnings per common share are computed by dividing net income available to common stockholders by the weighted average number of common shares outstanding during the period. Diluted earnings per common share include the dilutive effect of additional potential common shares issuable pursuant to the exercise of stock options or vesting of performance shares. The difference in earnings per share under the two not December 31, 2021, 2020 2019. Year Ended December 31, 2021 2020 2019 (Dollar Amounts In Thousands Except Per Share Amounts) Earnings Per Share Weighted average common shares outstanding 54,160,990 53,844,482 53,530,766 Net income available to common stockholders $ 207,672 $ 169,506 $ 149,180 Basic earnings per common share $ 3.83 $ 3.15 $ 2.79 Weighted average common shares outstanding 54,160,990 53,844,482 53,530,766 Dilutive effects of assumed exercise of stock options and vesting of performance shares 273,583 374,555 572,308 Weighted average common and dilutive potential common shares outstanding 54,434,573 54,219,037 54,103,074 Net income available to common stockholders $ 207,672 $ 169,506 $ 149,180 Diluted earnings per common share $ 3.82 $ 3.13 $ 2.76

Note 20 - Related Party Transac

Note 20 - Related Party Transactions	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Related Party Transactions Disclosure [Text Block]	NOTE 20. RELATED PARTY TRANSACTIONS As more fully described in Note 3 Loans December 31, 2021 2020 December 31, 2021 2020,

Note 21 - Fair Value Measuremen

Note 21 - Fair Value Measurement	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Fair Value Disclosures [Text Block]	NOTE 21. FAIR VALUE MEASUREMENT Measurement of fair value under U.S. GAAP establishes a hierarchy that prioritizes observable and unobservable inputs used to measure fair value, as of the measurement date, into three Level 1: Quoted prices (unadjusted) in active markets that are accessible at the measurement date for assets or liabilities. The fair value hierarchy gives the highest priority to Level 1 Level 2: Observable prices that are based on inputs not Level 3: Unobservable inputs are used when little or no 3 In determining fair value, the Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible and also considers counterparty credit risk in its assessment of fair value. Debt Securities 1 1 not may 2 1 2 not 3 Derivative instruments 2 Loans Individually Evaluated. not not 820 10 3 December 31, 2021 December 31, 2020 December 31, 2021 2020, Other Real Estate Owned and Repossessed Assets not December 31, 2021 December 31, 2020 3 December 31, 2021 2020, 3 There was one December 31, 2021, December 31, 2020. There was one December 31, 2021. The following table presents the Company’s financial assets and financial liabilities carried at fair value on a recurring basis as of December 31, 2021 December 31, 2020. no December 31, 2021 December 31, 2020. Fair Value Measurements at December 31, 2021 Using Quoted Prices in Active Markets Significant Other Significant for Identical Observable Inputs Unobservable Assets (Level 1) (Level 2) Inputs (Level 3) Total Assets Measured on a Recurring Basis: (In Thousands) Available-for-sale debt securities: U.S. Treasury securities $ 9,104 $ - $ - $ 9,104 Government agency securities - 6,041 - 6,041 Mortgage-backed securities - 425,161 - 425,161 State and municipal securities - 21,634 - 21,634 Corporate debt - 363,638 16,992 380,630 Total available-for-sale debt securities 9,104 816,474 16,992 842,570 Interest rate cap derivative - 1,152 - 1,152 Total assets at fair value $ 9,104 $ 817,626 $ 16,992 $ 843,722 Fair Value Measurements at December 31, 2020 Using Quoted Prices in Active Markets Significant Other Significant for Identical Observable Inputs Unobservable Assets (Level 1) (Level 2) Inputs (Level 3) Total Assets Measured on a Recurring Basis: (In Thousands) Available-for-sale debt securities: U.S. Treasury securities $ 14,357 $ - $ - $ 14,357 Government agency securities - 15,458 - 15,458 Mortgage-backed securities - 495,109 - 495,109 State and municipal securities - 38,115 - 38,115 Corporate debt - 323,649 - 323,649 Total available-for-sale debt securities 14,357 872,331 - 886,688 Interest rate cap derivative - 139 - 139 Total assets at fair value $ 14,357 $ 872,470 $ - $ 886,827 The carrying amount and estimated fair value of the Company’s financial instruments measured on a nonrecurring basis were as follows: Fair Value Measurements at December 31, 2021 Using Quoted Prices in Active Markets Significant Other Significant for Identical Observable Unobservable Assets (Level 1) Inputs (Level 2) Inputs (Level 3) Total Assets Measured on a Nonrecurring Basis: (In Thousands) Loans individually evaluated $ - $ - $ 73,173 $ 73,173 Other real estate owned and repossessed assets - - 1,208 1,208 Total assets at fair value $ - $ - $ 74,381 $ 74,381 Fair Value Measurements at December 31, 2020 Using Quoted Prices in Active Markets Significant Other Significant for Identical Observable Unobservable Assets (Level 1) Inputs (Level 2) Inputs (Level 3) Total Assets Measured on a Nonrecurring Basis: (In Thousands) Loans individually evaluated $ - $ - $ 80,817 $ 80,817 Other real estate owned and repossessed assets - - 6,497 6,497 Total assets at fair value $ - $ - $ 87,314 $ 87,314 There were no liabilities measured at fair value on a non-recurring basis as of December 31, 2021 December 31, 2020. In the case of the debt securities portfolio, the Company monitors the portfolio to ascertain when transfers between levels have been affected. For the year ended December 31, 2021, four 1, 2 3. The table below includes a rollforward of the balance sheet amounts for the year ended December 31, 2021 December 31, 2020 ( 3 For the year ended December 31, 2021 2020 Available-for-sale Securities Available-for-sale Securities (In Thousands) Fair value, beginning of period $ - $ 6,596 Transfers into Level 3 6,000 - Total realized gains included in income - - Changes in unrealized gains/losses included in other comprehensive income for assets and liabilities still held at period-end 492 (15 ) Purchases 18,000 - Transfers out of Level 3 (7,500 ) (6,581 ) Fair value, end of period $ 16,992 $ - The fair value of a financial instrument is the current amount that would be exchanged in a sale between willing parties, other than in a forced liquidation. Fair value is best determined based upon quoted market prices. However, in many instances, there are no not may not may not December 31, 2021 2020 Carrying Amount Fair Value Carrying Amount Fair Value (In Thousands) Financial Assets: Level 1 Inputs: Cash and cash equivalents $ 4,163,724 $ 4,163,724 $ 2,209,640 $ 2,209,640 Level 2 Inputs: Federal funds sold 58,372 58,372 1,771 1,771 Held to maturity debt securities 462,707 466,036 - - Mortgage loans held for sale 1,114 1,111 14,425 14,497 Level 3 Inputs: Debt securities held to maturity 250 250 250 250 Loans, net 9,416,274 9,403,012 8,377,746 8,387,718 Financial Liabilities: Level 2 Inputs: Deposits $ 12,452,836 $ 12,454,140 $ 9,975,724 $ 9,987,665 Federal funds purchased 1,711,777 1,711,777 851,545 851,545 Other borrowings 64,706 65,476 64,748 65,560

Note 22 - Parent Company Financ

Note 22 - Parent Company Financial Information	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Condensed Financial Information of Parent Company Only Disclosure [Text Block]	NOTE 22. PARENT COMPANY FINANCIAL INFORMATION The following information presents the condensed balance sheet of the Company as of December 31, 2021 2020 December 31, 2021, 2020 2019. CONDENSED BALANCE SHEETS (In Thousands) December 31, 2021 December 31, 2020 ASSETS Cash and due from banks $ 14,553 $ 14,685 Investment in subsidiary 1,212,850 1,052,083 Other assets 1,291 1,119 Total assets $ 1,228,694 $ 1,067,887 LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities: Other borrowings $ 64,706 $ 64,748 Other liabilities 12,473 10,787 Total liabilities 77,179 75,535 Stockholders' equity: Preferred stock, par value $0.001 1,000,000 - - Common stock, par value $0.001 100,000,000 54,227,060 53,943,751 54 54 Additional paid-in capital 226,397 223,856 Retained earnings 911,008 748,224 Accumulated other comprehensive income 14,056 20,218 Total stockholders' equity 1,151,515 992,352 Total liabilities and stockholders' equity $ 1,228,694 $ 1,067,887 CONDENSED STATEMENTS OF INCOME FOR THE YEARS ENDED DECEMBER 31, 2021, 2020 and 2019 (In Thousands) 2021 2020 2019 Income: Dividends received from subsidiary $ 46,000 $ 45,000 $ 37,000 Total income 46,000 45,000 37,000 Expense: Other expenses 2,715 2,936 2,930 Total expenses 2,715 2,936 2,930 Equity in undistributed earnings of subsidiary 164,387 127,442 115,110 Net income 207,672 169,506 149,180 Net income available to common stockholders $ 207,672 $ 169,506 $ 149,180 STATEMENTS OF CASH FLOW FOR THE YEARS ENDED DECEMBER 31, 2021, 2020 AND 2019 (In Thousands) 2021 2020 2019 Operating activities Net income $ 207,672 $ 169,506 $ 149,180 Adjustments to reconcile net income to net cash provided by operating activities: Other (93 ) 204 38 Equity in undistributed earnings of subsidiary (164,387 ) (127,442 ) (115,110 ) Net cash provided by operating activities 43,192 42,268 34,108 Investing activities Other (120 ) - (1,000 ) Net cash used in investing activities (120 ) - (1,000 ) Financing activities Proceeds from issuance of subordinated notes - 34,710 - Redemption of subordinated notes - (34,750 ) - Dividends paid on common stock (43,204 ) (37,614 ) (32,071 ) Net cash used in financing activities (43,204 ) (37,654 ) (32,071 ) Net change in cash and cash equivalents (132 ) 4,614 1,037 Cash and cash equivalents at beginning of year 14,685 10,071 9,034 Cash and cash equivalents at end of year $ 14,553 $ 14,685 $ 10,071

Note 23 - Quarterly Financial D

Note 23 - Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Quarterly Financial Information [Text Block]	NOTE 23. QUARTERLY FINANCIAL DATA (UNAUDITED) The following table sets forth certain unaudited quarterly financial data derived from our consolidated financial statements. Such data is only a summary and should be read in conjunction with our historical consolidated financial statements and related notes continued in this annual report on Form 10 2021 Quarter Ended (Dollars in thousands, except per share data) March 31 June 30 September 30 December 31 Interest income $ 100,396 $ 102,719 $ 104,236 $ 108,954 Interest expense 8,031 8,051 7,916 7,804 Net interest income 92,365 94,668 96,320 101,150 Provision for credit losses 7,451 9,652 5,963 8,451 Net income available to common stockholders 51,455 49,996 52,499 53,722 Net income per common share, basic $ 0.95 $ 0.92 $ 0.97 $ 0.99 Net income per common share, diluted $ 0.95 $ 0.92 $ 0.96 $ 0.99 2020 Quarter Ended (Dollars in thousands, except per share data) March 31 June 30 September 30 December 31 Interest income $ 96,767 $ 95,080 $ 96,110 $ 101,065 Interest expense 19,127 11,846 11,028 8,984 Net interest income 77,640 83,234 85,082 92,081 Provision for credit losses (1) 13,584 10,283 12,284 6,283 Net income available to common stockholders 34,778 40,417 43,362 50,949 Net income per common share, basic $ 0.65 $ 0.75 $ 0.80 $ 0.94 Net income per common share, diluted $ 0.64 $ 0.75 $ 0.80 $ 0.94 ( 1 The first three 2020 not 326.

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Nature of Operations [Policy Text Block]	Nature of Operations ServisFirst Bancshares, Inc. (the “Company”) was formed on August 16, 2007 May 2005. 1, 1, 11.
Reclassification, Comparability Adjustment [Policy Text Block]	Reclassification Certain amounts reported in prior years have been reclassified to conform to the current year’s presentation. These reclassifications had no
Basis of Accounting, Policy and Use of Estimates [Policy Text Block]	Basis of Presentation and Accounting Estimates To prepare consolidated financial statements in conformity with U.S. generally accepted accounting principles, management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and the disclosures provided, and future results could differ. The allowance for credit losses, valuation of deferred tax assets and the fair value of financial instruments are particularly subject to change. All numbers are in thousands except share and per share data.
Consolidation, Policy [Policy Text Block]	Basis of Consolidation The consolidated financial statements include the accounts of the Company and other entities in which it has a controlling financial interest. All significant intercompany balances and transactions have been eliminated in consolidation.
Cash Due From Banks Interest Bearing Balances Due From Financial Institutions [Policy Text Block]	Cash, Due from Banks, Interest-Bearing Balances due from Financial Institutions Cash and due from banks include cash on hand, cash items in process of collection, amounts due from banks and interest bearing balances due from financial institutions. For purposes of cash flows, cash and cash equivalents include cash and due from banks and federal funds sold. Generally, federal funds are purchased and sold for one The Bank is generally required to maintain reserve balances in cash or on deposit with the Federal Reserve Bank based on a percentage of deposits. However, in March 2020 zero March 26, 2020.
Investment, Policy [Policy Text Block]	Debt Securities Debt securities are classified based on the Company’s intention on the date of purchase. All debt securities classified as available-for-sale are recorded at fair value with any unrealized gains and losses reported in accumulated other comprehensive income (loss), net of the deferred income tax effects. Debt securities that the Company has the positive intent and ability to hold to maturity are classified as held-to-maturity and are carried at historical cost and adjusted for amortization of premiums and accretion of discounts. Transfers of debt securities into the held-to-maturity category from available-for-sale category are made at fair value at the date of transfer. The unrealized holding gain or loss at the date of transfer is retained in other comprehensive income and in the carrying value of the held-to-maturity securities. Such amounts are amortized over the remaining life of the security. Interest and dividends on securities, including amortization of premiums and accretion of discounts calculated under the effective interest method, are included in interest income. For certain securities, amortization of premiums and accretion of discounts is computed based on the anticipated life of the security which may
Equity Securities without Readily Determinable Fair Value [Policy Text Block]	Restricted Equity Securities Investments in restricted equity securities without a readily determinable market value are carried at cost.
Mortgage Banking Activity [Policy Text Block]	Mortgage Loans Held for Sale The Company classifies certain residential mortgage loans as held for sale. Typically, mortgage loans held for sale are sold to a third not In the course of originating mortgage loans and selling those loans in the secondary market, the Company makes various representations and warranties to the purchaser of the mortgage loans. Each loan is underwritten using government agency guidelines. Any exceptions noted during this process are remedied prior to sale. These representations and warranties also apply to underwriting the real estate appraisal opinion of value for the collateral securing these loans. Under the representations and warranties, failure by the Company to comply with the underwriting and/or appraisal standards could result in the Company being required to repurchase the mortgage loan or to reimburse the investor for losses incurred (make whole requests) if such failure cannot be cured by the Company within the specified period following discovery. The Company continues to experience an insignificant level of investor repurchase demands. There were no December 31, 2021 2020.
Policy Loans Receivable, Policy [Policy Text Block]	Loans Loans are reported at unpaid principal balances, less unearned fees and the allowance for credit losses. Interest on all loans is recognized as income based upon the applicable rate applied to the daily outstanding principal balance of the loans. Interest income on nonaccrual loans is recognized on a cash basis or cost recovery basis until the loan is returned to accrual status. A loan may six not one The accrual of interest on loans is discontinued when there is a significant deterioration in the financial condition of the borrower and full repayment of principal and interest is not 90 not Troubled debt restructurings (“TDRs”) are concessions granted to borrowers in the normal course of business, which would not may six
Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block]	Allowance for Credit Losses ( ACL ) As described below under Recently Adopted Accounting Pronouncements, 2016 - 13 , Financial Instruments-Credit Losses (Topic 326 326 January 1, 2020. ACL Debt Securities Management uses a systematic methodology to determine its ACL for held-to-maturity debt securities. The ACL is a valuation account that is deducted from the amortized cost basis to present the net amount expected to be collected on the held-to-maturity portfolio. Management considers the effects of past events, current conditions, and reasonable and supportable forecasts on the collectability of the portfolio. The Company’s estimate of its ACL involves a high degree of judgment; therefore, Management’s process for determining expected credit losses may December 31, 2021, no For available-for-sale debt securities in an unrealized loss position, the Company will first not not The Company excludes the accrued interest receivable balance from the amortized cost basis in measuring expected credit losses on debt securities and does not ACL Loans The ACL is based on the Company’s evaluation of the loan portfolios, past loan loss experience, current asset quality trends, known and inherent risks in the portfolio, adverse situations that may may Loans with similar risk characteristics are evaluated in pools and, depending on the nature of each identified pool, the Company utilizes a discounted cash flow (“DCF”), probability of default / loss given default (“PD/LGD”) or remaining life method. The historical loss experience estimate by pool is then adjusted by forecast factors that are quantitatively related to the Company’s historical credit loss experience, such as national unemployment rates and gross domestic product. Losses are predicted over a period of time determined to be reasonable and supportable, and at the end of the reasonable and supportable period losses are reverted to long term historical averages. The reasonable and supportable period and reversion period are re-evaluated each quarter by the Company and are dependent on the current economic environment among other factors. The estimated credit losses for each loan pool are then adjusted for changes in qualitative factors not Credit losses for loans that no one The Company measures expected credit losses over the contractual term of a loan, adjusted for estimated prepayments. The contractual term excludes expected extensions, renewals and modifications unless there is a reasonable expectation that a troubled debt restructuring will be executed. Credit losses are estimated on the amortized cost basis of loans, which includes the principal balance outstanding, purchase discounts and premiums and deferred loan fees and costs. Accrued interest receivable on loans is excluded from the estimate of credit losses. ACL Unfunded Loan Commitments The ACL is a liability account, calculated in accordance with ASC 326, No
Financing Receivable, Real Estate Acquired Through Foreclosure [Policy Text Block]	Foreclosed Real Estate Foreclosed real estate includes both formally foreclosed property and in-substance foreclosed property. At the time of foreclosure, foreclosed real estate is recorded at fair value less cost to sell, which becomes the property’s new basis. Any write downs based on the asset’s fair value at date of acquisition are charged to the allowance for credit losses. After foreclosure, these assets are carried at the lower of their new cost basis or fair value less cost to sell. Costs incurred in maintaining foreclosed real estate and subsequent adjustments to the carrying amount of the property are included in other operating expenses.
Property, Plant and Equipment, Policy [Policy Text Block]	Premises and Equipment Land is carried at cost. Premises and equipment are carried at cost less accumulated depreciation. Expenditures for additions and major improvements that significantly extend the useful lives of the assets are capitalized. Expenditures for repairs and maintenance are charged to expense as incurred. Assets which are disposed of are removed from the accounts and the resulting gains or losses are recorded in operations. Depreciation is calculated on a straight-line basis over the estimated useful lives of the related assets (3 to 39.5 years). Leasehold improvements are amortized on a straight-line basis over the lesser of the lease terms or the estimated useful lives of the improvements.
Lessee, Leases [Policy Text Block]	Leases The Company leases certain office space and equipment under operating leases. Leases are recognized as a liability to make lease payments and as an asset representing the right to use the asset during the lease term, or “lease liability” and “right-of-use asset”, respectively. The lease liability is measured as the present value of remaining lease payments, discounted at the Company’s incremental borrowing rate. The Company reports its right-of-use assets in other assets and its lease liabilities in other liabilities. Certain of the leases include one not not None The Company does not 12 not
Bank Owned Life Insurance, Policy [Policy Text Block]	Bank Owned Life Insurance ( BOLI ) BOLI is comprised of long-term life insurance contracts on the lives of certain current and past employees where the insurance policy benefit and ownership are retained by the employer. Its cash surrender value is an asset that the Company uses to partially offset the future cost of employee benefits. The cash surrender value accumulation on BOLI is permanently tax deferred if the policy is held to the insured person’s death and certain other conditions are met.
Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block]	Goodwill and Other Identifiable Intangible Assets The Company has recorded $13.6 million of goodwill at December 31, 2021 2015. not one Other identifiable intangible assets include a core deposit intangible recorded in connection with the acquisition of Metro Bancshares, Inc. The core deposit intangible is being amortized over 7 years and the estimated useful life is periodically reviewed for reasonableness.
Derivatives, Policy [Policy Text Block]	Derivatives and Hedging Activities As part of its overall interest rate risk management, the Company uses derivative instruments, which can include interest rate swaps, caps, and floors. ASC 815 10, The Company designates the derivative on the date the derivative contract is entered into as a hedge of the ( 1 2 The Company formally documents all relationships between hedging instruments and hedged items, as well as its risk-management objective and strategy for undertaking various hedge transactions. This process includes linking all derivatives that are designated as fair-value or cash-flow hedges to specific assets and liabilities on the balance sheet or to specific firm commitments or forecasted transactions. The Company also formally assesses, both at the hedge’s inception and on an ongoing basis, as necessary, whether the derivatives that are used in hedging transactions are highly effective in offsetting changes in fair values or cash flows of hedged items. When it is determined that a derivative is not 1 no 2 3 4 no 5 no When hedge accounting is discontinued because it is determined that the derivative no no The Company uses derivatives to hedge interest rate exposures associated with mortgage loan originations. Interest rate lock commitments related to loans that are originated for later sale are classified as derivatives. In the normal course of business, the Company regularly extends these rate lock commitments to customers during the loan origination process. The fair values of the Company’s rate lock commitments to customers as of December 31, 2021 2020 not not
Revenue from Contract with Customer [Policy Text Block]	Revenue Recognition The Company records revenue from contracts with customers in accordance with ASC Topic 606, Revenue from Contracts with Customers 606” ) The majority of revenue-generating transactions are excluded from the scope of ASC 606, 606, • Deposit account service charges – represent service fees for monthly activity and maintenance on customer accounts. Attributes can be transaction-based, item-based or time-based. Revenue is recognized when our performance obligation is completed which is generally monthly for maintenance services or when a transaction is processed. Payment for such performance obligations are generally received at the time the performance obligations are satisfied. • Credit card rewards program membership fees – represent memberships in our credit card rewards program and are paid annually by our cardholders at the time they open an account and on each anniversary. Revenue is recognized ratably over the membership period. Other non-interest income primarily includes income on bank owned life insurance contracts, letter of credit fees and gains on sale of loans held for sale, none 606.
Income Tax, Policy [Policy Text Block]	Income Taxes Income tax expense is the total of the current year income tax due or refundable and the change in deferred tax assets and liabilities. Deferred tax assets and liabilities are the expected future tax amounts for the temporary differences between carrying amounts and tax bases of assets and liabilities, computed using enacted tax rates. A valuation allowance, if needed, reduces deferred tax assets to the amount expected to be realized. The Company follows the provisions of ASC 740 10, Income Taxes. 740 10 740 10 740 10 740 10 two first not second not 50%
Share-based Payment Arrangement [Policy Text Block]	Stock-Based Compensation At December 31, 2021, 718 10, Compensation Stock Compensation
Earnings Per Share, Policy [Policy Text Block]	Earnings per Common Share Basic earnings per common share are computed by dividing net income available to common stockholders by the weighted average number of common shares outstanding during the period. Diluted earnings per common share include the dilutive effect of additional potential common shares issuable under stock options and performance shares.
Loan Commitments, Policy [Policy Text Block]	Loan Commitments and Related Financial Instruments Financial instruments, which include credit card arrangements, commitments to make loans and standby letters of credit, are issued to meet customer financing needs. The face amount for these items represents the exposure to loss before considering customer collateral or ability to repay. Such financial instruments are recorded when they are funded. Instruments such as stand-by letters of credit are considered financial guarantees in accordance with FASB ASC 460 10. not
Fair Value of Financial Instruments, Policy [Policy Text Block]	Fair Value of Financial Instruments Fair values of financial instruments are estimated using relevant market information and other assumptions, as more fully disclosed in Note 21.
Comprehensive Income, Policy [Policy Text Block]	Comprehensive Income Comprehensive income consists of net income and other comprehensive income. Accumulated comprehensive income, which is recognized as a separate component of equity, includes unrealized gains and losses on available-for-sale debt securities and amortization of unrealized gains and losses on debt securities transferred from available-for-sale to held-to-maturity at the time of transfer. Amounts reported as accumulated comprehensive income are shown net of taxes.
Advertising Cost [Policy Text Block]	Advertising Advertising costs are expensed as incurred. Advertising expense for the years ended December 31, 2021, 2020 2019
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Adopted Accounting Pronouncements In June 2016 , 2016 13, Financial Instruments-Credit Losses (Topic 326 326 326 January 1, 2020 . January 1, 2020 326 , 2020 , not January 1, 2020, In March 2020 , 2020 04, Reference Rate Reform (Topic 848 March 12 , 2020 December 31, 2022 . In August 2021 , No. 2021 06 Presentation of Financial Statements (Topic 205 ), Financial Services Depository and Lending (Topic 942 ), and Financial Services Investment Companies (Topic 946 ): Amendments to SEC Paragraphs Pursuant to SEC Final Rule Releases No. 33 - 10786, Amendments to Financial Disclosures about Acquired and Disposed Businesses, and No. 33 - 10835, Update of Statistical Disclosures for Bank and Savings and Loan Registrants No . 33 - 10786 No. 33 - 10835 not Recent Accounting Pronouncements In July 2021, 2021 05, Leases (Topic 842 Lessors-Certain Leases with Variable Lease Payments no not December 15, 2021 , not 2021 - 05

Note 2 - Debt Securities (Table

Note 2 - Debt Securities (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Unrealized Gain (Loss) on Investments [Table Text Block]	Gross Gross Amortized Unrealized Unrealized Market Cost Gain Loss Value December 31, 2021 (In Thousands) Debt Securities Available for Sale U.S. Treasury Securities $ 9,003 $ 101 $ - $ 9,104 Government Agency Securities 6,022 19 - 6,041 Mortgage-backed securities 424,372 3,474 (2,685 ) 425,161 State and municipal securities 21,531 173 (70 ) 21,634 Corporate debt 369,618 11,659 (647 ) 380,630 Total $ 830,546 $ 15,426 $ (3,402 ) $ 842,570 Debt Securities Held to Maturity U.S. Treasury Securities $ 149,263 $ 25 $ (668 ) $ 148,620 Mortgage-backed securities 310,641 5,251 (1,271 ) 314,621 State and municipal securities 3,053 2 (10 ) 3,045 Total $ 462,957 $ 5,278 $ (1,949 ) $ 466,286 December 31, 2020 Debt Securities Available for Sale U.S Treasury Securities $ 13,993 $ 364 $ - $ 14,357 Government Agency Securities 15,228 230 - 15,458 Mortgage-backed securities 477,407 17,720 (18 ) 495,109 State and municipal securities 37,671 444 - 38,115 Corporate debt 316,857 7,296 (504 ) 323,649 Total $ 861,156 $ 26,054 $ (522 ) $ 886,688 Debt Securities Held to Maturity State and municipal securities 250 - - 250 Total $ 250 $ - $ - $ 250
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	December 31, 2021 December 31, 2020 Amortized Cost Market Value Amortized Cost Market Value (In Thousands) Debt securities available for sale Due within one year $ 32,913 $ 33,232 $ 30,797 $ 31,060 Due from one to five years 31,760 32,307 59,828 61,481 Due from five to ten years 338,407 348,594 288,002 293,886 Due after ten years 3,094 3,276 5,122 5,152 Mortgage-backed securities 424,372 425,161 477,407 495,109 $ 830,546 $ 842,570 $ 861,156 $ 886,688 Debt securities held to maturity Due within one year $ 250 $ 250 $ 250 $ 250 Due from one to five years 49,663 49,419 - - Due from five to ten years 102,403 101,996 - - Mortgage-backed securities 310,641 314,621 - - $ 462,957 $ 466,286 $ 250 $ 250
Gain (Loss) on Securities [Table Text Block]	Less Than Twelve Months Twelve Months or More Total Gross Gross Gross Unrealized Unrealized Unrealized Losses Fair Value Losses Fair Value Losses Fair Value (In Thousands) December 31, 2021 U.S. Treasury Securities $ (668 ) $ 123,698 $ - $ - $ (668 ) $ 123,698 Government Agency Securities - - - - - - Mortgage-backed securities (3,956 ) 437,489 - - (3,956 ) 437,489 State and municipal securities (71 ) 5,680 (9 ) 228 (80 ) 5,908 Corporate debt (647 ) 61,677 - - (647 ) 61,677 Total $ (5,342 ) $ 628,544 $ (9 ) $ 228 $ (5,351 ) $ 628,772 December 31, 2020 U.S. Treasury Securities $ - $ - $ - $ - $ - $ - Government Agency Securities - - - - - - Mortgage-backed securities (18 ) 3,667 - - (18 ) 3,667 State and municipal securities - - - - - - Corporate debt (504 ) 59,576 - - (504 ) 59,576 Total $ (522 ) $ 63,243 $ - $ - $ (522 ) $ 63,243
Debt Securities, Available-for-sale [Table Text Block]	Years Ended December 31, 2021 2020 2019 (In Thousands) Sale and call proceeds $ 56,780 $ 27,857 $ 35,220 Gross realized gains $ 620 $ - $ 42 Gross realized losses - - 15 Net realized gain $ 620 $ - $ 27

Note 3 - Loans (Tables)

Note 3 - Loans (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	December 31, 2021 2020 (In Thousands) Commercial, financial and agricultural $ 2,984,053 $ 3,295,900 Real estate - construction 1,103,076 593,614 Real estate - mortgage: Owner-occupied commercial 1,874,103 1,693,428 1-4 family mortgage 826,765 711,692 Other mortgage 2,678,084 2,106,184 Total real estate - mortgage 5,378,952 4,511,304 Consumer 66,853 64,870 Total Loans 9,532,934 8,465,688 Less: Allowance for credit losses (116,660 ) (87,942 ) Net Loans $ 9,416,274 $ 8,377,746
Schedule of Allowance for Loan Losses [Table Text Block]	Years Ended December 31, 2021 2020 2019 (In Thousands) Balance, beginning of year $ 87,942 $ 76,584 $ 68,600 Impact of adopting ASC 326 - (2,000 ) - Loans charged off (4,114 ) (29,568 ) (22,489 ) Recoveries 1,315 492 429 Allocation from LGP (1) - - 7,406 Provision for credit losses 31,517 42,434 22,638 Balance, end of year $ 116,660 $ 87,942 $ 76,584
Financing Receivable, Allowance for Credit Loss [Table Text Block]	Commercial, financial and Real estate - Real estate - agricultural construction mortgage Consumer Total (In Thousands) Year Ended December 31, 2021 Allowance for credit losses: Balance at December 31, 2020 $ 36,370 $ 16,057 $ 33,722 $ 1,793 $ 87,942 Charge-offs (3,453 ) (14 ) (279 ) (368 ) (4,114 ) Recoveries 1,135 52 86 42 1,315 Provision 7,817 10,899 12,300 501 31,517 Balance at December 31, 2021 $ 41,869 $ 26,994 $ 45,829 $ 1,968 $ 116,660 Year Ended December 31, 2020 Allowance for loan losses: Balance at December 31, 2019 $ 43,666 $ 2,768 $ 29,653 $ 497 $ 76,584 Impact of adopting ASC 326 (8,211 ) 6,212 (966 ) 965 (2,000 ) Charge-offs (23,936 ) (1,032 ) (4,397 ) (203 ) (29,568 ) Recoveries 252 32 140 68 492 Provision 24,599 8,077 9,292 466 42,434 Balance at December 31, 2020 $ 36,370 $ 16,057 $ 33,722 $ 1,793 $ 87,942
Financing Receivable Based on Year of Origination [Table Text Block]	December 31, 2021 2021 2020 2019 2018 2017 Prior Revolving Loans Total (In Thousands) Commercial, financial and agricultural Pass $ 800,822 $ 294,841 $ 209,086 $ 130,579 $ 114,870 $ 127,572 $ 1,216,153 $ 2,893,923 Special Mention 1,245 1,323 942 846 915 784 19,801 25,856 Substandard - 387 10,039 1,741 1,501 7,966 42,640 64,274 Doubtful - - - - - - - - Total Commercial, financial and agricultural $ 802,067 $ 296,551 $ 220,067 $ 133,166 $ 117,286 $ 136,322 $ 1,278,594 $ 2,984,053 Real estate - construction Pass $ 597,497 $ 260,723 $ 110,671 $ 16,452 $ 13,704 $ 17,356 $ 76,662 $ 1,093,065 Special Mention - - 6,594 2,500 - 917 - 10,011 Substandard - - - - - - - - Doubtful - - - - - - - - Total Real estate - construction $ 597,497 $ 260,723 $ 117,265 $ 18,952 $ 13,704 $ 18,273 $ 76,662 $ 1,103,076 Owner-occupied commercial Pass $ 406,473 $ 352,642 $ 231,197 $ 182,812 $ 162,648 $ 430,638 $ 96,860 $ 1,863,270 Special Mention 101 - 2,417 779 476 2,688 - 6,461 Substandard - - - - - 4,372 - 4,372 Doubtful - - - - - - - - Total Owner-occupied commercial $ 406,574 $ 352,642 $ 233,614 $ 183,591 $ 163,124 $ 437,698 $ 96,860 $ 1,874,103 1-4 family mortgage Pass $ 299,686 $ 117,579 $ 68,044 $ 46,954 $ 37,374 $ 37,970 $ 210,338 $ 817,945 Special Mention - 1,000 517 116 260 912 3,033 5,838 Substandard - 150 593 241 231 611 1,156 2,982 Doubtful - - - - - - - - Total 1-4 family mortgage $ 299,686 $ 118,729 $ 69,154 $ 47,311 $ 37,865 $ 39,493 $ 214,527 $ 826,765 Other mortgage Pass $ 882,849 $ 481,012 $ 411,426 $ 174,700 $ 272,555 $ 353,621 $ 81,202 $ 2,657,365 Special Mention - - 130 376 2,720 4,656 - 7,882 Substandard - - - 4,497 8,340 - - 12,837 Doubtful - - - - - - - - Total Other mortgage $ 882,849 $ 481,012 $ 411,556 $ 179,573 $ 283,615 $ 358,277 $ 81,202 $ 2,678,084 Consumer Pass $ 16,303 $ 4,845 $ 2,896 $ 983 $ 903 $ 3,649 $ 37,250 $ 66,829 Special Mention - - - - - 24 - 24 Substandard - - - - - - - - Doubtful - - - - - - - - Total Consumer $ 16,303 $ 4,845 $ 2,896 $ 983 $ 903 $ 3,673 $ 37,250 $ 66,853 Total Loans Pass $ 3,003,630 $ 1,511,642 $ 1,033,320 $ 552,480 $ 602,054 $ 970,806 $ 1,718,465 $ 9,392,397 Special Mention 1,346 2,323 10,600 4,617 4,371 9,981 22,834 56,072 Substandard - 537 10,632 6,479 10,072 12,949 43,796 84,465 Doubtful - - - - - - - - Total Loans $ 3,004,976 $ 1,514,502 $ 1,054,552 $ 563,576 $ 616,497 $ 993,736 $ 1,785,095 $ 9,532,934 December 31, 2020 2020 2019 2018 2017 2016 Prior Revolving Loans Total (In Thousands) Commercial, financial and agricultural Pass $ 1,260,341 $ 332,690 $ 229,838 $ 169,616 $ 89,893 $ 137,021 $ 988,093 $ 3,207,492 Special Mention 2,551 1,404 10 253 163 281 14,948 19,610 Substandard 569 10,639 617 5,447 963 2,038 48,525 68,798 Doubtful - - - - - - - - Total Commercial, financial and agricultural $ 1,263,461 $ 344,733 $ 230,465 $ 175,316 $ 91,019 $ 139,340 $ 1,051,566 $ 3,295,900 Real estate - construction Pass $ 230,931 $ 222,357 $ 53,981 $ 16,361 $ 7,677 $ 13,816 $ 48,256 $ 593,379 Special Mention - - - - - - - - Substandard - - - - - 235 - 235 Doubtful - - - - - - - - Total Real estate - construction $ 230,931 $ 222,357 $ 53,981 $ 16,361 $ 7,677 $ 14,051 $ 48,256 $ 593,614 Owner-occupied commercial Pass $ 351,808 $ 271,645 $ 221,513 $ 198,935 $ 158,531 $ 417,743 $ 61,119 $ 1,681,294 Special Mention - - - 6,524 543 1,873 200 9,140 Substandard - - 12 780 - 1,962 240 2,994 Doubtful - - - - - - - - Total Owner-occupied commercial $ 351,808 $ 271,645 $ 221,525 $ 206,239 $ 159,074 $ 421,578 $ 61,559 $ 1,693,428 1-4 family mortgage Pass $ 179,314 $ 111,016 $ 70,381 $ 60,774 $ 27,985 $ 44,111 $ 212,616 $ 706,197 Special Mention 508 - - 105 481 - 1,112 2,206 Substandard 350 126 - 235 218 - 2,360 3,289 Doubtful - - - - - - - - Total 1-4 family mortgage $ 180,172 $ 111,142 $ 70,381 $ 61,114 $ 28,684 $ 44,111 $ 216,088 $ 711,692 Other mortgage Pass $ 470,086 $ 470,092 $ 250,945 $ 368,283 $ 180,244 $ 272,722 $ 68,721 $ 2,081,093 Special Mention - - - 2,793 541 8,566 - 11,900 Substandard - 50 4,589 8,552 - - - 13,191 Doubtful - - - - - - - - Total Other mortgage $ 470,086 $ 470,142 $ 255,534 $ 379,628 $ 180,785 $ 281,288 $ 68,721 $ 2,106,184 Consumer Pass $ 20,410 $ 4,421 $ 1,551 $ 1,671 $ 1,031 $ 3,615 $ 32,125 $ 64,824 Special Mention - - 15 - 31 - - 46 Substandard - - - - - - - - Doubtful - - - - - - - - Total Consumer $ 20,410 $ 4,421 $ 1,566 $ 1,671 $ 1,062 $ 3,615 $ 32,125 $ 64,870 Total Loans Pass $ 2,512,890 $ 1,412,221 $ 828,209 $ 815,640 $ 465,361 $ 889,028 $ 1,410,930 $ 8,334,279 Special Mention 3,059 1,404 25 9,675 1,759 10,720 16,260 42,902 Substandard 919 10,815 5,218 15,014 1,181 4,235 51,125 88,507 Doubtful - - - - - - - - Total Loans $ 2,516,868 $ 1,424,440 $ 833,452 $ 840,329 $ 468,301 $ 903,983 $ 1,478,315 $ 8,465,688
Financing Receivable, Credit Substitute, Credit Quality Indicator [Table Text Block]	December 31, 2021 Performing Nonperforming Total (In Thousands) Commercial, financial and agricultural $ 2,979,671 $ 4,382 $ 2,984,053 Real estate - construction 1,103,076 - 1,103,076 Real estate - mortgage: Owner-occupied commercial 1,873,082 1,021 1,874,103 1-4 family mortgage 824,756 2,009 826,765 Other mortgage 2,673,428 4,656 2,678,084 Total real estate - mortgage 5,371,266 7,686 5,378,952 Consumer 66,824 29 66,853 Total $ 9,520,837 $ 12,097 $ 9,532,934 December 31, 2020 Performing Nonperforming Total (In Thousands) Commercial, financial and agricultural $ 3,284,180 $ 11,720 $ 3,295,900 Real estate - construction 593,380 234 593,614 Real estate - mortgage: Owner-occupied commercial 1,692,169 1,259 1,693,428 1-4 family mortgage 710,817 875 711,692 Other mortgage 2,101,379 4,805 2,106,184 Total real estate - mortgage 4,504,365 6,939 4,511,304 Consumer 64,809 61 64,870 Total $ 8,446,734 $ 18,954 $ 8,465,688
Financing Receivable, Past Due [Table Text Block]	December 31, 2021 Past Due Status (Accruing Loans) Total Past Total Nonaccrual 30-59 Days 60-89 Days 90+ Days Due Nonaccrual Current Total Loans With No ACL (In Thousands) Commercial, financial and agricultural $ 516 $ 77 $ 39 $ 632 $ 4,343 $ 2,979,078 $ 2,984,053 $ 2,059 Real estate - construction - - - - - 1,103,076 1,103,076 - Real estate - mortgage: Owner-occupied commercial 143 - - 143 1,021 1,872,939 1,874,103 1,021 1-4 family mortgage - 703 611 1,314 1,398 824,053 826,765 483 Other mortgage - - 4,656 4,656 - 2,673,428 2,678,084 - Total real estate - mortgage 143 703 5,267 6,113 2,419 5,370,420 5,378,952 1,504 Consumer 93 23 29 145 - 66,708 66,853 - Total $ 752 $ 803 $ 5,335 $ 6,890 $ 6,762 $ 9,519,282 $ 9,532,934 $ 3,563 December 31, 2020 Past Due Status (Accruing Loans) Total Past Total Nonaccrual 30-59 Days 60-89 Days 90+ Days Due Nonaccrual Current Total Loans With No ACL (In Thousands) Commercial, financial and agricultural $ 92 $ 1,738 $ 11 $ 1,841 $ 11,709 $ 3,282,350 $ 3,295,900 $ 5,101 Real estate - construction - - - - 234 593,380 593,614 - Real estate - mortgage: Owner-occupied commercial - 995 - 995 1,259 1,691,174 1,693,428 467 1-4 family mortgage 61 1,073 104 1,238 771 709,683 711,692 512 Other mortgage 18 - 4,805 4,823 - 2,101,361 2,106,184 - Total real estate - mortgage 79 2,068 4,909 7,056 2,030 4,502,218 4,511,304 979 Consumer 64 13 61 138 - 64,732 64,870 - Total $ 235 $ 3,819 $ 4,981 $ 9,035 $ 13,973 $ 8,442,680 $ 8,465,688 $ 6,080
Schedule of Financial Instruments Owned and Pledged as Collateral [Table Text Block]	Accounts ACL December 31, 2021 Real Estate Receivable Equipment Other Total Allocation (In Thousands) Commercial, financial and agricultural $ 13,067 $ 5,075 $ 18,533 $ 27,599 $ 64,274 $ 9,727 Real estate - mortgage: Owner-occupied commercial 4,372 - - - 4,372 1,371 1-4 family mortgage 2,982 - - - 2,982 163 Other mortgage 12,837 - - - 12,837 31 Total real estate - mortgage 20,191 - - - 20,191 1,565 Total $ 33,258 $ 5,075 $ 18,533 $ 27,599 $ 84,465 $ 11,292 Accounts ACL December 31, 2020 Real Estate Receivable Equipment Other Total Allocation (In Thousands) Commercial, financial and agricultural $ 19,373 $ 27,952 $ 16,877 $ 4,594 $ 68,796 $ 7,142 Real estate - construction 235 - - - 235 1 Real estate - mortgage: Owner-occupied commercial 2,012 971 - 12 2,995 499 1-4 family mortgage 3,264 - - 24 3,288 48 Other mortgage 13,191 - - - 13,191 - Total real estate - mortgage 18,467 971 - 36 19,474 547 Total $ 38,075 $ 28,923 $ 16,877 $ 4,630 $ 88,505 $ 7,690
Financing Receivable, Troubled Debt Restructuring [Table Text Block]	Year Ended December 31, 2021 Pre- Post- Modification Modification Outstanding Outstanding Number of Recorded Recorded Contracts Investment Investment (In Thousands) Troubled Debt Restructurings Commercial, financial and agricultural 2 $ 1,155 $ 1,155 Real estate - construction - - - Real estate - mortgage: Owner-occupied commercial 1 991 991 1-4 family mortgage - - - Other mortgage - - - Total real estate - mortgage 1 991 991 Consumer - - - 3 $ 2,146 $ 2,146 Year ended December 31, 2020 Pre- Post- Modification Modification Outstanding Outstanding Number of Recorded Recorded Contracts Investment Investment (In Thousands) Troubled Debt Restructurings Commercial, financial and agricultural 2 $ 564 $ 564 Real estate - construction 1 357 357 Real estate - mortgage: Owner-occupied commercial 1 611 611 1-4 family mortgage - - - Other mortgage - - - Total real estate - mortgage 1 611 611 Consumer - - - 4 $ 1,532 $ 1,532
Schedule of Changes in Related Party Loans [Table Text Block]	Years Ended December 31, 2021 2020 (In Thousands) Balance, beginning of year $ 36,969 $ 24,681 Additions 3,168 - Advances 90,553 41,183 Repayments (79,445 ) (28,895 ) Removal (65 ) - Balance, end of year $ 51,180 $ 36,969

Note 4 - Foreclosed Properties

Note 4 - Foreclosed Properties (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Disclosure of Foreclosed Properties [Table Text Block]	2021 2020 2019 (In Thousands) Balance at beginning of year $ 6,497 $ 8,178 $ 5,169 Transfers from loans and capitalized expenses 2,318 2,985 4,611 Foreclosed properties sold (6,474 ) (2,813 ) (1,437 ) Write downs and partial liquidations (1,133 ) (1,853 ) (165 ) Balance at end of year $ 1,208 $ 6,497 $ 8,178

Note 5 - Premises and Equipme_2

Note 5 - Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Property, Plant and Equipment [Table Text Block]	December 31, 2021 2020 (In Thousands) Land $ 5,830 $ 5,830 Building 38,261 36,365 Furniture and equipment 31,183 27,466 Leasehold improvements 13,400 10,789 Construction in progress 62 867 Total premises and equipment, cost 88,736 81,317 Accumulated depreciation (28,436 ) (26,348 ) Total premises and equipment, net $ 60,300 $ 54,969

Note 6 - Leases (Tables)

Note 6 - Leases (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Lease, Cost [Table Text Block]	December 31, 2021 December 31, 2020 Right-of-use assets $ 17,916 $ 10,452 Lease liabilities $ 18,549 $ 10,645 Weighted average remaining lease term 6.8 4.9 Weighted average discount rate 2.46 % 3.2 % 2021 2020 Operating lease cost $ 4,009 $ 3,476 Short-term lease cost - 45 Variable lease cost 430 151 Sublease income (94 ) (93 ) Net lease cost $ 4,345 $ 3,579
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	(In Thousands) 2022 $ 4,084 2023 3,520 2024 2,566 2025 2,481 2026 1,903 Thereafter 5,509 Total lease payments $ 20,063 Less: imputed interest (1,514 ) Present value of operating lease liabilities $ 18,549

Note 8 - Deposits (Tables)

Note 8 - Deposits (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Schedule Of Deposits [Table Text Block]	December 31, 2021 2020 (In Thousands) Noninterest-bearing demand $ 4,799,767 $ 2,788,772 Interest-bearing checking 6,707,778 6,276,910 Savings 131,955 89,418 Time deposits, $250,000 and under 256,185 273,301 Time deposits, over $250,000 507,151 497,323 Brokered time deposits 50,000 50,000 $ 12,452,836 $ 9,975,724
Time Deposit Maturities [Table Text Block]	(In Thousands) 2022 $ 566,698 2023 174,332 2024 26,993 2025 10,039 2026 35,275 Total $ 813,336

Note 13 - Employee and Direct_2

Note 13 - Employee and Director Benefits (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	2019 Expected price volatility 40.00 % Expected dividend yield 1.76 % Expected term (in years) 7 Risk-free rate 1.96 %
Share-based Payment Arrangement, Option, Activity [Table Text Block]	Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (years) Aggregate Intrinsic Value (In Thousands) Year Ended December 31, 2021: Outstanding at beginning of year 641,450 $ 18.15 4.6 $ 16,985 Exercised (278,200 ) 12.58 2.8 20,131 Forfeited (10,000 ) 38.38 5.2 466 Outstanding at end of year 353,250 $ 19.28 3.8 $ 23,525 Exercisable at December 31, 2021: 264,000 $ 12.89 2.8 $ 19,353 Year Ended December 31, 2020: Outstanding at beginning of year 965,750 $ 15.20 4.9 $ 21,914 Exercised (306,300 ) 11.38 2.9 8,854 Forfeited (18,000 ) 30.79 6.1 171 Outstanding at end of year 641,450 $ 18.15 4.6 $ 16,985 Exercisable at December 31, 2020: 182,200 $ 12.86 3.5 $ 4,998 Year Ended December 31, 2019: Outstanding at beginning of year 1,238,750 $ 13.02 5.2 $ 23,355 Granted 36,000 34.04 9.6 132 Exercised (288,800 ) 7.56 2.5 8,534 Forfeited (20,200 ) 24.88 6.2 259 Outstanding at end of year 965,750 $ 15.20 4.9 $ 21,914 Exercisable at December 31, 2019: 278,500 $ 8.28 3.0 $ 8,355
Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]	Range of Exercise Price Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (years) Aggregate Intrinsic Value (In Thousands) $ 5.00 - 6.00 49,000 $ 5.41 1.1 $ 3,897 6.00 - 7.00 53,500 6.92 2.6 4,174 15.00 - 16.00 81,000 15.41 3.0 5,632 17.00 - 18.00 21,500 17.17 3.3 1,457 18.00 - 19.00 6,000 18.49 3.7 732 19.00 - 20.00 49,000 19.16 4.1 3,223 25.00 - 26.00 4,000 25.41 4.7 238 264,000 $ 12.89 2.8 $ 19,353
Share-based Payment Arrangement, Outstanding Award, Activity, Excluding Option [Table Text Block]	Restricted Stock Performance Stock Shares Weighted Average Grant Date Fair Value Shares Weighted Average Grant Date Fair Value Year Ended December 31, 2021: Non-vested at beginning of year 84,307 $ 34.92 - $ - Granted 69,295 48.92 12,437 37.05 Vested (14,274 ) 29.33 - - Forfeited (12,353 ) 39.60 - - Non-vested at end of year 126,975 $ 42.28 12,437 $ 37.05 Year Ended December 31, 2020: Non-vested at beginning of year 71,290 $ 32.24 - $ - Granted 33,695 33.91 - - Vested (20,178 ) 23.76 - - Forfeited (500 ) 34.09 - - Non-vested at end of year 84,307 $ 34.92 - $ - Year Ended December 31, 2019: Non-vested at beginning of year 42,576 $ 29.96 - $ - Granted 36,664 33.60 - - Vested (5,450 ) 20.92 - - Forfeited (2,500 ) 38.17 - - Non-vested at end of year 71,290 $ 32.24 - $ -

Note 14 - Regulatory Matters (T

Note 14 - Regulatory Matters (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]	Actual For Capital Adequacy Purposes To Be Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio As of December 31, 2021: CET I Capital to Risk Weighted Assets: Consolidated $ 1,123,826 9.95 % $ 508,027 4.50 % N/A N/A ServisFirst Bank 1,185,161 10.50 % 507,969 4.50 % $ 733,733 6.50 % Tier I Capital to Risk Weighted Assets: Consolidated 1,124,326 9.96 % 677,370 6.00 % N/A N/A ServisFirst Bank 1,185,661 10.50 % 677,292 6.00 % 903,056 8.00 % Total Capital to Risk Weighted Assets: Consolidated 1,306,992 11.58 % 903,160 8.00 % N/A N/A ServisFirst Bank 1,303,621 11.55 % 903,056 8.00 % 1,128,821 10.00 % Tier I Capital to Average Assets: Consolidated 1,124,326 7.39 % 608,883 4.00 % N/A N/A ServisFirst Bank 1,185,661 7.79 % 608,826 4.00 % 761,033 5.00 % As of December 31, 2020: CET I Capital to Risk Weighted Assets: Consolidated $ 958,300 10.50 % $ 410,816 4.50 % N/A N/A ServisFirst Bank 1,018,031 11.15 % 410,766 4.50 % $ 593,328 6.50 % Tier I Capital to Risk Weighted Assets: Consolidated 958,800 10.50 % 547,755 6.00 % N/A N/A ServisFirst Bank 1,018,531 11.16 % 547,688 6.00 % 730,250 8.00 % Total Capital to Risk Weighted Assets: Consolidated 1,113,690 12.20 % 730,340 8.00 % N/A N/A ServisFirst Bank 1,108,673 12.15 % 730,250 8.00 % 912,813 10.00 % Tier I Capital to Average Assets: Consolidated 958,800 8.23 % 465,980 4.00 % N/A N/A ServisFirst Bank 1,018,531 8.75 % 465,448 4.00 % 581,810 5.00 %

Note 15 - Other Operating Inc_2

Note 15 - Other Operating Income and Expenses (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Schedule of Other Operating Income Expenses [Table Text Block]	Years Ended December 31, 2021 2020 2019 (In Thousands) Other Operating Income ATM fee income $ 1,443 $ 1,234 $ 1,001 Mark to market interest rate cap derivative 1,013 (656 ) - Gain (loss) on sale of fixed assets 433 9 5 Merchant services fees 1,231 565 415 Other 544 463 322 Total other operating income $ 4,664 $ 1,615 $ 1,743 Other Operating Expenses Other loan expenses $ 2,744 $ 4,886 $ 3,476 Customer and public relations 1,840 1,052 2,545 Sales and use tax 1,016 528 640 Write-down investment in tax credit partnerships 9,152 346 746 Telephone 453 541 1,131 Donations and contributions 544 506 837 Marketing 498 338 581 Supplies 504 495 572 Fraud and forgery losses 425 463 577 Directors fees 659 632 545 Postage 290 278 393 Other operational losses 144 1,662 36 Core processing deconverison expense 3,007 - - Other 5,881 3,763 4,135 Total other operating expenses $ 27,157 $ 15,490 $ 16,214

Note 16 - Income Taxes (Tables)

Note 16 - Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	Year Ended December 31, 2021 2020 2019 (In Thousands) Current tax expense: Federal $ 45,248 $ 50,016 $ 36,683 State 5,428 4,350 2,012 Total current tax expense 50,676 54,366 38,695 Deferred tax (benefit) expense: Federal (5,596 ) (9,342 ) (166 ) State 535 (385 ) (911 ) Total deferred tax (benefit) (5,061 ) (9,727 ) (1,077 ) Total income tax expense $ 45,615 $ 44,639 $ 37,618
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	Year Ended December 31, 2021 Amount % of Pre-tax Earnings (In Thousands) Income tax at statutory federal rate $ 53,203 21.00 % Effect on rate of: State income tax, net of federal tax effect 4,952 1.95 % Tax-exempt income, net of expenses (242 ) (0.10 )% Bank-owned life insurance contracts (1,395 ) (0.55 )% Excess tax benefit from stock compensation (2,335 ) (0.92 )% Federal tax credits (11,019 ) (4.35 )% Other 2,451 0.97 % Effective income tax and rate $ 45,615 18.00 % Year Ended December 31, 2020 Amount % of Pre-tax Earnings (In Thousands) Income tax at statutory federal rate $ 44,984 21.00 % Effect on rate of: State income tax, net of federal tax effect 3,230 1.51 % Tax-exempt income, net of expenses (354 ) (0.17 )% Bank-owned life insurance contracts (1,325 ) (0.62 )% Excess tax benefit from stock compensation (1,306 ) (0.61 )% Federal tax credits (563 ) (0.26 )% Other (27 ) (0.01 )% Effective income tax and rate $ 44,639 20.84 % Year Ended December 31, 2019 Amount % of Pre-tax Earnings (In Thousands) Income tax at statutory federal rate $ 39,241 21.00 % Effect on rate of: State income tax, net of federal tax effect 822 0.44 % Tax-exempt income, net of expenses (461 ) (0.25 )% Bank-owned life insurance contracts (787 ) (0.42 )% Excess tax benefit from stock compensation (1,405 ) (0.75 )% Federal tax credits (170 ) (0.09 )% Other 378 0.20 % Effective income tax and rate $ 37,618 20.13 %
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	December 31, 2021 2020 (In Thousands) Deferred tax assets: Allowance for credit losses $ 29,237 $ 21,600 Other real estate owned 520 728 Nonqualified equity awards 816 873 Nonaccrual interest 289 322 State tax credits 3,988 6,091 Deferred loan fees 5,087 5,875 Reserve for unfunded commitments 435 600 Accrued bonus 3,910 2,594 Capital loss carryforward 1,867 1,480 Lease liability 4,654 2,671 Deferred revenue 31 42 Other deferred tax assets 1,429 885 Total deferred tax assets 52,263 43,761 Deferred tax liabilities: Net unrealized gain on securities available for sale 3,723 5,360 Depreciation 4,872 4,011 Prepaid expenses 607 543 Investments 696 79 Right-of-use assets and other leasing transactions 4,495 2,622 Acquired intangible assets 6 74 Other deferred tax liabilities 92 - Total deferred tax liabilities 14,491 12,689 Net deferred tax assets $ 37,772 $ 31,072
Summary of Income Tax Contingencies [Table Text Block]	2021 2020 2019 (In Thousands) Balance, beginning of year $ 3,238 $ 2,683 $ 2,133 Increases related to prior year tax positions 864 997 998 Decreases related to prior year tax positions - - - Increases related to current year tax positions - - - Settlements - - - Lapse of statute (443 ) (442 ) (448 ) Balance, end of year $ 3,659 $ 3,238 $ 2,683

Note 17 - Commitments and Con_2

Note 17 - Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Product Liability Contingencies [Table Text Block]	2021 2020 2019 (In Thousands) Commitments to extend credit $ 3,515,818 $ 2,606,258 $ 2,303,788 Credit card arrangements 366,525 286,128 248,617 Standby letters of credit and financial guarantees 61,856 66,208 48,394 Total $ 3,944,199 $ 2,958,594 $ 2,600,799

Note 19 - Earnings Per Common_2

Note 19 - Earnings Per Common Share (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Year Ended December 31, 2021 2020 2019 (Dollar Amounts In Thousands Except Per Share Amounts) Earnings Per Share Weighted average common shares outstanding 54,160,990 53,844,482 53,530,766 Net income available to common stockholders $ 207,672 $ 169,506 $ 149,180 Basic earnings per common share $ 3.83 $ 3.15 $ 2.79 Weighted average common shares outstanding 54,160,990 53,844,482 53,530,766 Dilutive effects of assumed exercise of stock options and vesting of performance shares 273,583 374,555 572,308 Weighted average common and dilutive potential common shares outstanding 54,434,573 54,219,037 54,103,074 Net income available to common stockholders $ 207,672 $ 169,506 $ 149,180 Diluted earnings per common share $ 3.82 $ 3.13 $ 2.76

Note 21 - Fair Value Measurem_2

Note 21 - Fair Value Measurement (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	Fair Value Measurements at December 31, 2021 Using Quoted Prices in Active Markets Significant Other Significant for Identical Observable Inputs Unobservable Assets (Level 1) (Level 2) Inputs (Level 3) Total Assets Measured on a Recurring Basis: (In Thousands) Available-for-sale debt securities: U.S. Treasury securities $ 9,104 $ - $ - $ 9,104 Government agency securities - 6,041 - 6,041 Mortgage-backed securities - 425,161 - 425,161 State and municipal securities - 21,634 - 21,634 Corporate debt - 363,638 16,992 380,630 Total available-for-sale debt securities 9,104 816,474 16,992 842,570 Interest rate cap derivative - 1,152 - 1,152 Total assets at fair value $ 9,104 $ 817,626 $ 16,992 $ 843,722 Fair Value Measurements at December 31, 2020 Using Quoted Prices in Active Markets Significant Other Significant for Identical Observable Inputs Unobservable Assets (Level 1) (Level 2) Inputs (Level 3) Total Assets Measured on a Recurring Basis: (In Thousands) Available-for-sale debt securities: U.S. Treasury securities $ 14,357 $ - $ - $ 14,357 Government agency securities - 15,458 - 15,458 Mortgage-backed securities - 495,109 - 495,109 State and municipal securities - 38,115 - 38,115 Corporate debt - 323,649 - 323,649 Total available-for-sale debt securities 14,357 872,331 - 886,688 Interest rate cap derivative - 139 - 139 Total assets at fair value $ 14,357 $ 872,470 $ - $ 886,827
Fair Value Measurements, Nonrecurring [Table Text Block]	Fair Value Measurements at December 31, 2021 Using Quoted Prices in Active Markets Significant Other Significant for Identical Observable Unobservable Assets (Level 1) Inputs (Level 2) Inputs (Level 3) Total Assets Measured on a Nonrecurring Basis: (In Thousands) Loans individually evaluated $ - $ - $ 73,173 $ 73,173 Other real estate owned and repossessed assets - - 1,208 1,208 Total assets at fair value $ - $ - $ 74,381 $ 74,381 Fair Value Measurements at December 31, 2020 Using Quoted Prices in Active Markets Significant Other Significant for Identical Observable Unobservable Assets (Level 1) Inputs (Level 2) Inputs (Level 3) Total Assets Measured on a Nonrecurring Basis: (In Thousands) Loans individually evaluated $ - $ - $ 80,817 $ 80,817 Other real estate owned and repossessed assets - - 6,497 6,497 Total assets at fair value $ - $ - $ 87,314 $ 87,314
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]	For the year ended December 31, 2021 2020 Available-for-sale Securities Available-for-sale Securities (In Thousands) Fair value, beginning of period $ - $ 6,596 Transfers into Level 3 6,000 - Total realized gains included in income - - Changes in unrealized gains/losses included in other comprehensive income for assets and liabilities still held at period-end 492 (15 ) Purchases 18,000 - Transfers out of Level 3 (7,500 ) (6,581 ) Fair value, end of period $ 16,992 $ -
Fair Value, by Balance Sheet Grouping [Table Text Block]	December 31, 2021 2020 Carrying Amount Fair Value Carrying Amount Fair Value (In Thousands) Financial Assets: Level 1 Inputs: Cash and cash equivalents $ 4,163,724 $ 4,163,724 $ 2,209,640 $ 2,209,640 Level 2 Inputs: Federal funds sold 58,372 58,372 1,771 1,771 Held to maturity debt securities 462,707 466,036 - - Mortgage loans held for sale 1,114 1,111 14,425 14,497 Level 3 Inputs: Debt securities held to maturity 250 250 250 250 Loans, net 9,416,274 9,403,012 8,377,746 8,387,718 Financial Liabilities: Level 2 Inputs: Deposits $ 12,452,836 $ 12,454,140 $ 9,975,724 $ 9,987,665 Federal funds purchased 1,711,777 1,711,777 851,545 851,545 Other borrowings 64,706 65,476 64,748 65,560

Note 22 - Parent Company Fina_2

Note 22 - Parent Company Financial Information (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Condensed Balance Sheet [Table Text Block]	CONDENSED BALANCE SHEETS (In Thousands) December 31, 2021 December 31, 2020 ASSETS Cash and due from banks $ 14,553 $ 14,685 Investment in subsidiary 1,212,850 1,052,083 Other assets 1,291 1,119 Total assets $ 1,228,694 $ 1,067,887 LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities: Other borrowings $ 64,706 $ 64,748 Other liabilities 12,473 10,787 Total liabilities 77,179 75,535 Stockholders' equity: Preferred stock, par value $0.001 1,000,000 - - Common stock, par value $0.001 100,000,000 54,227,060 53,943,751 54 54 Additional paid-in capital 226,397 223,856 Retained earnings 911,008 748,224 Accumulated other comprehensive income 14,056 20,218 Total stockholders' equity 1,151,515 992,352 Total liabilities and stockholders' equity $ 1,228,694 $ 1,067,887
Condensed Income Statement [Table Text Block]	CONDENSED STATEMENTS OF INCOME FOR THE YEARS ENDED DECEMBER 31, 2021, 2020 and 2019 (In Thousands) 2021 2020 2019 Income: Dividends received from subsidiary $ 46,000 $ 45,000 $ 37,000 Total income 46,000 45,000 37,000 Expense: Other expenses 2,715 2,936 2,930 Total expenses 2,715 2,936 2,930 Equity in undistributed earnings of subsidiary 164,387 127,442 115,110 Net income 207,672 169,506 149,180 Net income available to common stockholders $ 207,672 $ 169,506 $ 149,180
Condensed Cash Flow Statement [Table Text Block]	STATEMENTS OF CASH FLOW FOR THE YEARS ENDED DECEMBER 31, 2021, 2020 AND 2019 (In Thousands) 2021 2020 2019 Operating activities Net income $ 207,672 $ 169,506 $ 149,180 Adjustments to reconcile net income to net cash provided by operating activities: Other (93 ) 204 38 Equity in undistributed earnings of subsidiary (164,387 ) (127,442 ) (115,110 ) Net cash provided by operating activities 43,192 42,268 34,108 Investing activities Other (120 ) - (1,000 ) Net cash used in investing activities (120 ) - (1,000 ) Financing activities Proceeds from issuance of subordinated notes - 34,710 - Redemption of subordinated notes - (34,750 ) - Dividends paid on common stock (43,204 ) (37,614 ) (32,071 ) Net cash used in financing activities (43,204 ) (37,654 ) (32,071 ) Net change in cash and cash equivalents (132 ) 4,614 1,037 Cash and cash equivalents at beginning of year 14,685 10,071 9,034 Cash and cash equivalents at end of year $ 14,553 $ 14,685 $ 10,071

Note 23 - Quarterly Financial_2

Note 23 - Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Quarterly Financial Information [Table Text Block]	2021 Quarter Ended (Dollars in thousands, except per share data) March 31 June 30 September 30 December 31 Interest income $ 100,396 $ 102,719 $ 104,236 $ 108,954 Interest expense 8,031 8,051 7,916 7,804 Net interest income 92,365 94,668 96,320 101,150 Provision for credit losses 7,451 9,652 5,963 8,451 Net income available to common stockholders 51,455 49,996 52,499 53,722 Net income per common share, basic $ 0.95 $ 0.92 $ 0.97 $ 0.99 Net income per common share, diluted $ 0.95 $ 0.92 $ 0.96 $ 0.99 2020 Quarter Ended (Dollars in thousands, except per share data) March 31 June 30 September 30 December 31 Interest income $ 96,767 $ 95,080 $ 96,110 $ 101,065 Interest expense 19,127 11,846 11,028 8,984 Net interest income 77,640 83,234 85,082 92,081 Provision for credit losses (1) 13,584 10,283 12,284 6,283 Net income available to common stockholders 34,778 40,417 43,362 50,949 Net income per common share, basic $ 0.65 $ 0.75 $ 0.80 $ 0.94 Net income per common share, diluted $ 0.64 $ 0.75 $ 0.80 $ 0.94

Note 1 - Summary of Significa_2

Note 1 - Summary of Significant Accounting Policies (Details Textual)	12 Months Ended
	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Jan. 01, 2020USD ($)	Dec. 31, 2018USD ($)
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss, Total	$ 462,957,000	$ 250,000
Debt Securities, Held-to-maturity, Allowance for Credit Loss, Ending Balance	$ 0
Number of Reporting Units	1
Advertising Expense	$ 498,000	338,000	$ 581,000
Retained Earnings (Accumulated Deficit), Ending Balance	911,008,000	748,224,000
Loans and Leases Receivable, Allowance, Ending Balance	116,660,000	87,942,000	76,584,000		$ 68,600,000
Deferred Income Tax Assets, Net, Total	37,772,000	31,072,000
Loans and Leases Receivable, Gross, Total	9,532,934,000	8,465,688,000
Commercial Real Estate Portfolio Segment [Member]
Loans and Leases Receivable, Allowance, Ending Balance	41,869,000	36,370,000	43,666,000
Loans and Leases Receivable, Gross, Total	2,984,053,000	3,295,900,000
Real Estate Portfolio Segment[Member]
Loans and Leases Receivable, Gross, Total	5,378,952,000	4,511,304,000
Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Loans and Leases Receivable, Allowance, Ending Balance	26,994,000	16,057,000	$ 2,768,000
Loans and Leases Receivable, Gross, Total	1,103,076,000	$ 593,614,000
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Retained Earnings (Accumulated Deficit), Ending Balance				$ 1,100,000
Loans and Leases Receivable, Allowance, Ending Balance				2,000,000
Off-Balance Sheet, Credit Loss, Liability, Ending Balance				500,000,000,000
Deferred Income Tax Assets, Net, Total				376,000,000,000
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total				8,200,000
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Loans and Leases Receivable, Gross, Total				$ 6,200,000
Metro Bancshares, Inc [Member]
Goodwill, Ending Balance	$ 13,600,000
Finite-Lived Intangible Asset, Useful Life (Year)	7 years
Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Lessee, Operating Lease, Renewal Term (Year)	1 year
Minimum [Member] | Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Vested Upon Certain Performance Metrics, Percentage	0.00%
Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	39 years 6 months
Lessee, Operating Lease, Renewal Term (Year)	5 years
Maximum [Member] | Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Vested Upon Certain Performance Metrics, Percentage	150.00%

Note 2 - Debt Securities (Detai

Note 2 - Debt Securities (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale, Transfer to Held-to-maturity	$ 261,300
Debt Securities, Available-for-sale, Transfer to Held-to-maturity, Accumulated Realized Gain (Loss) in Other Comprehensive Income	$ 5,600
Debt Securities, Available-for-sale, Allowance for Credit Loss, Current		$ 0
Debt Securities, Available-for-sale, Allowance for Credit Loss, Ending Balance		0
Pledged Financial Instruments, Not Separately Reported, Securities, Total		$ 481,300	$ 477,600

Note 2 - Debt Securities - Amor

Note 2 - Debt Securities - Amortized Cost and Fair Value of Available-for-sale and Held-to-maturity Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Available for sale, amortized cost	$ 830,546	$ 861,156
Available for sale, gross unrealized gain	15,426	26,054
Available for sale, gross unrealized loss	(3,402)	(522)
Available for sale, fair value	842,570	886,688
Held to maturity debt securities (fair value of $466,286 at December 31, 2021 and $250 at December 31, 2020)	462,957	250
Held to maturity, gross unrealized gain	5,278	0
Held to maturity, gross unrealized loss	(1,949)	0
Held to maturity debt securities, fair value	466,286	250
US Treasury Securities [Member]
Available for sale, amortized cost	9,003	13,993
Available for sale, gross unrealized gain	101	364
Available for sale, gross unrealized loss	0	0
Available for sale, fair value	9,104	14,357
Held to maturity debt securities (fair value of $466,286 at December 31, 2021 and $250 at December 31, 2020)	149,263
Held to maturity, gross unrealized gain	25
Held to maturity, gross unrealized loss	(668)
Held to maturity debt securities, fair value	148,620
US Government Agencies Debt Securities [Member]
Available for sale, amortized cost	6,022	15,228
Available for sale, gross unrealized gain	19	230
Available for sale, gross unrealized loss	0	0
Available for sale, fair value	6,041	15,458
Collateralized Mortgage Backed Securities [Member]
Available for sale, amortized cost	424,372	477,407
Available for sale, gross unrealized gain	3,474	17,720
Available for sale, gross unrealized loss	(2,685)	(18)
Available for sale, fair value	425,161	495,109
Held to maturity debt securities (fair value of $466,286 at December 31, 2021 and $250 at December 31, 2020)	310,641
Held to maturity, gross unrealized gain	5,251
Held to maturity, gross unrealized loss	(1,271)
Held to maturity debt securities, fair value	314,621
US States and Political Subdivisions Debt Securities [Member]
Available for sale, amortized cost	21,531	37,671
Available for sale, gross unrealized gain	173	444
Available for sale, gross unrealized loss	(70)	0
Available for sale, fair value	21,634	38,115
Held to maturity debt securities (fair value of $466,286 at December 31, 2021 and $250 at December 31, 2020)	3,053	250
Held to maturity, gross unrealized gain	2	0
Held to maturity, gross unrealized loss	(10)	0
Held to maturity debt securities, fair value	3,045	250
Corporate Debt Securities [Member]
Available for sale, amortized cost	369,618	316,857
Available for sale, gross unrealized gain	11,659	7,296
Available for sale, gross unrealized loss	(647)	(504)
Available for sale, fair value	$ 380,630	$ 323,649

Note 2 - Debt Securities - Am_2

Note 2 - Debt Securities - Amortized Cost and Fair Value of Contractual Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Due within one year, amortized cost	$ 32,913	$ 30,797
Due within one year, fair value	33,232	31,060
Due from one to five years, amortized cost	31,760	59,828
Due from one to five years, fair value	32,307	61,481
Due from five to ten years, amortized cost	338,407	288,002
Due from five to ten years, fair value	348,594	293,886
Due after ten years, amortized cost	3,094	5,122
Due after ten years, fair value	3,276	5,152
Mortgage-backed securities, amortized cost	424,372	477,407
Mortgage-backed securities, fair value	425,161	495,109
Available for sale, amortized cost	830,546	861,156
Available for sale, fair value	842,570	886,688
Held to maturity debt securities, Due within one year	250	250
Held to maturity debt securities, Due within one year	250	250
Held to maturity debt securities, Due from one to five years	49,663	0
Held to maturity debt securities, Due from one to five years	49,419	0
Held to maturity debt securities, Due from five to ten years	102,403	0
Held to maturity debt securities, Due from five to ten years	101,996	0
Mortgage-backed securities, amortized cost	310,641	0
Mortgage-backed securities, fair value	314,621	0
Held to maturity, amortized cost	462,957	250
Held to maturity debt securities, fair value	$ 466,286	$ 250

Note 2 - Debt Securities - Inve

Note 2 - Debt Securities - Investment Securities Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Less Than Twelve Months, Gross Unrealized Losses	$ (5,342)	$ (522)
Less Than Twelve Months, Fair Value	628,544	63,243
Twelve Months or More, Gross Unrealized Losses	(9)	0
Twelve Months or More, Fair Value	228	0
Total, Gross Unrealized Losses	(5,351)	(522)
Total, Fair Value	628,772	63,243
US Treasury Securities [Member]
Less Than Twelve Months, Gross Unrealized Losses	(668)	0
Less Than Twelve Months, Fair Value	123,698	0
Twelve Months or More, Gross Unrealized Losses	0	0
Twelve Months or More, Fair Value	0	0
Total, Gross Unrealized Losses	(668)	0
Total, Fair Value	123,698	0
US Government Agencies Debt Securities [Member]
Less Than Twelve Months, Gross Unrealized Losses	0	0
Less Than Twelve Months, Fair Value	0	0
Twelve Months or More, Gross Unrealized Losses	0	0
Twelve Months or More, Fair Value	0	0
Total, Gross Unrealized Losses	0	0
Total, Fair Value	0	0
Collateralized Mortgage Backed Securities [Member]
Less Than Twelve Months, Gross Unrealized Losses	(3,956)	(18)
Less Than Twelve Months, Fair Value	437,489	3,667
Twelve Months or More, Gross Unrealized Losses	0	0
Twelve Months or More, Fair Value	0	0
Total, Gross Unrealized Losses	(3,956)	(18)
Total, Fair Value	437,489	3,667
US States and Political Subdivisions Debt Securities [Member]
Less Than Twelve Months, Gross Unrealized Losses	(71)	0
Less Than Twelve Months, Fair Value	5,680	0
Twelve Months or More, Gross Unrealized Losses	(9)	0
Twelve Months or More, Fair Value	228	0
Total, Gross Unrealized Losses	(80)	0
Total, Fair Value	5,908	0
Corporate Debt Securities [Member]
Less Than Twelve Months, Gross Unrealized Losses	(647)	(504)
Less Than Twelve Months, Fair Value	61,677	59,576
Twelve Months or More, Gross Unrealized Losses	0	0
Twelve Months or More, Fair Value	0	0
Total, Gross Unrealized Losses	(647)	(504)
Total, Fair Value	$ 61,677	$ 59,576

Note 2 - Debt Securities - Sale

Note 2 - Debt Securities - Sales and Calls of Debt Securities for Sale (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Sale and call proceeds	$ 56,780	$ 27,857	$ 35,220
Gross realized gains	620	0	42
Gross realized losses	0	0	15
Net realized gain (loss)	$ 620	$ 0	$ 27

Note 3 - Loans (Details Textual

Note 3 - Loans (Details Textual)	12 Months Ended
	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Number of Loans Funded, Payroll Protection Plan	7,400
Amount of Loans Funded, Payment Protection Plan	$ 1,500,000,000
Loans and Leases Receivable, Gross, Total	9,532,934,000	$ 8,465,688,000
Termination of Loan Guaratee, Close-out Payment			$ 7,400,000
Financing Receivable, Credit Loss, Expense (Reversal)	31,517,000	42,434,000	$ 22,638,000
Financing Receivable, Troubled Debt Restructuring	$ 2,600,000	$ 1,500,000
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	0	0
Interest Earned on Nonaccrual Loans	$ 0	$ 0
Principal and Interest Deferrals [Member]
Financing Receivable, Payment Deferral, Recorded Investment	$ 1,500,000
Principal and Interest Deferrals [Member]
Financing Receivable, Number of Payment Deferrals	12
Commercial Real Estate Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	$ 2,984,053,000	3,295,900,000
Financing Receivable, Credit Loss, Expense (Reversal)	7,817,000	24,599,000
Paycheck Protection Program (PPP) Loans [Member]
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums, Total	7,200,000	17,800,000
Paycheck Protection Program (PPP) Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	230,200,000	900,500,000
Paycheck Protection Program (PPP) Loans [Member] | COVID-19 [Member]
Interest and Fee Income, Loans, Commercial, Total	27,300,000	14,100,000
Unfunded Loan Commitment [Member]
Financing Receivable, Allowance for Credit Loss, Ending Balance	1,300,000	2,200,000
Financing Receivable, Credit Loss, Expense (Reversal)	$ (900,000)	$ 1,200,000

Note 3 - Loans - Summary of Loa

Note 3 - Loans - Summary of Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Financing receivable, gross	$ 9,532,934	$ 8,465,688
Less: Allowance for credit losses	(116,660)	(87,942)	$ (76,584)	$ (68,600)
Net Loans	9,416,274	8,377,746
Real Estate Portfolio Segment[Member]
Financing receivable, gross	5,378,952	4,511,304
Commercial Real Estate Portfolio Segment [Member]
Financing receivable, gross	2,984,053	3,295,900
Less: Allowance for credit losses	(41,869)	(36,370)	(43,666)
Real Estate Portfolio Segment[Member]
Financing receivable, gross	5,378,952	4,511,304
Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Financing receivable, gross	1,103,076	593,614
Less: Allowance for credit losses	(26,994)	(16,057)	(2,768)
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Financing receivable, gross	1,874,103	1,693,428
Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Financing receivable, gross	826,765	711,692
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Financing receivable, gross	2,678,084	2,106,184
Consumer Portfolio Segment [Member]
Financing receivable, gross	66,853	64,870
Less: Allowance for credit losses	$ (1,968)	$ (1,793)	$ (497)

Note 3 - Loans - Allowance for

Note 3 - Loans - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Balance, beginning of year	$ 87,942	$ 76,584	$ 68,600
Impact of adopting ASC 326	0	(2,000)	0
Loans charged off	(4,114)	(29,568)	(22,489)
Recoveries	(1,315)	(492)	(429)
Allocation from LGP (1)	0	0	7,406
Financing Receivable, Credit Loss, Expense (Reversal)	31,517	42,434	22,638
Balance, end of year	$ 116,660	$ 87,942	$ 76,584

Note 3 - Loans - Analysis of Al

Note 3 - Loans - Analysis of Allowance for Loans Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Balance, beginning of year	$ 87,942	$ 76,584	$ 68,600
Charge-offs	(4,114)	(29,568)	(22,489)
Recoveries	1,315	492	429
Provision	31,517	42,434	22,638
Balance, end of year	116,660	87,942	76,584
Impact of adopting ASC 326	0	(2,000)	0
Commercial Real Estate Portfolio Segment [Member]
Balance, beginning of year	36,370	43,666
Charge-offs	(3,453)	(23,936)
Recoveries	1,135	252
Provision	7,817	24,599
Balance, end of year	41,869	36,370	43,666
Impact of adopting ASC 326		(8,211)
Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Balance, beginning of year	16,057	2,768
Charge-offs	(14)	(1,032)
Recoveries	52	32
Provision	10,899	8,077
Balance, end of year	26,994	16,057	2,768
Impact of adopting ASC 326		6,212
Real Estate Portfolio Segment[Member] | Real Estate Loan [Member]
Balance, beginning of year	33,722	29,653
Charge-offs	(279)	(4,397)
Recoveries	86	140
Provision	12,300	9,292
Balance, end of year	45,829	33,722	29,653
Impact of adopting ASC 326		(966)
Consumer Portfolio Segment [Member]
Balance, beginning of year	1,793	497
Charge-offs	(368)	(203)
Recoveries	42	68
Provision	501	466
Balance, end of year	$ 1,968	1,793	$ 497
Impact of adopting ASC 326		$ 965

Note 3 - Loans - Loans by Credi

Note 3 - Loans - Loans by Credit Quality Indicators, Loans Type and Year of Origination (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Originated in 2021	$ 3,004,976	$ 2,516,868
Originated in 2020	1,514,502	1,424,440
Originated in 2019	1,054,552	833,452
Originated in 2018	563,576	840,329
Originated in 2017	616,497	468,301
Originated prior to 2017	993,736	903,983
Revolving Loans	1,785,095	1,478,315
Financing receivable, gross	9,532,934	8,465,688
Commercial Real Estate Portfolio Segment [Member]
Originated in 2021	802,067	1,263,461
Originated in 2020	296,551	344,733
Originated in 2019	220,067	230,465
Originated in 2018	133,166	175,316
Originated in 2017	117,286	91,019
Originated prior to 2017	136,322	139,340
Revolving Loans	1,278,594	1,051,566
Financing receivable, gross	2,984,053	3,295,900
Real Estate Portfolio Segment[Member]
Financing receivable, gross	5,378,952	4,511,304
Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Originated in 2021	597,497	230,931
Originated in 2020	260,723	222,357
Originated in 2019	117,265	53,981
Originated in 2018	18,952	16,361
Originated in 2017	13,704	7,677
Originated prior to 2017	18,273	14,051
Revolving Loans	76,662	48,256
Financing receivable, gross	1,103,076	593,614
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Originated in 2021	406,574	351,808
Originated in 2019	233,614	221,525
Originated in 2018	183,591	206,239
Originated in 2017	163,124	159,074
Originated prior to 2017	437,698	421,578
Revolving Loans	96,860	61,559
Financing receivable, gross	1,874,103	1,693,428
Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Originated in 2021	299,686	180,172
Originated in 2020	118,729	111,142
Originated in 2019	69,154	70,381
Originated in 2018	47,311	61,114
Originated in 2017	37,865	28,684
Originated prior to 2017	39,493	44,111
Revolving Loans	214,527	216,088
Financing receivable, gross	826,765	711,692
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Originated in 2021	882,849	470,086
Originated in 2020	481,012	470,142
Originated in 2019	411,556	255,534
Originated in 2018	179,573	379,628
Originated in 2017	283,615	180,785
Originated prior to 2017	358,277	281,288
Revolving Loans	81,202	68,721
Financing receivable, gross	2,678,084	2,106,184
Consumer Portfolio Segment [Member]
Originated in 2021	16,303	20,410
Originated in 2019	2,896	1,566
Originated in 2018	983	1,671
Originated in 2017	903	1,062
Originated prior to 2017	3,673	3,615
Revolving Loans	37,250	32,125
Financing receivable, gross	66,853	64,870
Pass [Member]
Originated in 2021	3,003,630	2,512,890
Originated in 2020	1,511,642	1,412,221
Originated in 2019	1,033,320	828,209
Originated in 2018	552,480	815,640
Originated in 2017	602,054	465,361
Originated prior to 2017	970,806	889,028
Revolving Loans	1,718,465	1,410,930
Financing receivable, gross	9,392,397	8,334,279
Pass [Member] | Commercial Real Estate Portfolio Segment [Member]
Originated in 2021	800,822	1,260,341
Originated in 2020	294,841	332,690
Originated in 2019	209,086	229,838
Originated in 2018	130,579	169,616
Originated in 2017	114,870	89,893
Originated prior to 2017	127,572	137,021
Revolving Loans	1,216,153	988,093
Financing receivable, gross	2,893,923	3,207,492
Pass [Member] | Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Originated in 2021	597,497	230,931
Originated in 2020	260,723	222,357
Originated in 2019	110,671	53,981
Originated in 2018	16,452	16,361
Originated in 2017	13,704	7,677
Originated prior to 2017	17,356	13,816
Revolving Loans	76,662	48,256
Financing receivable, gross	1,093,065	593,379
Pass [Member] | Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Originated in 2021	406,473	351,808
Originated in 2020	352,642	271,645
Originated in 2019	231,197	221,513
Originated in 2018	182,812	198,935
Originated in 2017	162,648	158,531
Originated prior to 2017	430,638	417,743
Revolving Loans	96,860	61,119
Financing receivable, gross	1,863,270	1,681,294
Pass [Member] | Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Originated in 2021	299,686	179,314
Originated in 2020	117,579	111,016
Originated in 2019	68,044	70,381
Originated in 2018	46,954	60,774
Originated in 2017	37,374	27,985
Originated prior to 2017	37,970	44,111
Revolving Loans	210,338	212,616
Financing receivable, gross	817,945	706,197
Pass [Member] | Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Originated in 2021	882,849	470,086
Originated in 2020	481,012	470,092
Originated in 2019	411,426	250,945
Originated in 2018	174,700	368,283
Originated in 2017	272,555	180,244
Originated prior to 2017	353,621	272,722
Revolving Loans	81,202	68,721
Financing receivable, gross	2,657,365	2,081,093
Pass [Member] | Consumer Portfolio Segment [Member]
Originated in 2021	16,303	20,410
Originated in 2020	4,845	4,421
Originated in 2019	2,896	1,551
Originated in 2018	983	1,671
Originated in 2017	903	1,031
Originated prior to 2017	3,649	3,615
Revolving Loans	37,250	32,125
Financing receivable, gross	66,829	64,824
Special Mention [Member]
Originated in 2021	1,346	3,059
Originated in 2020	2,323	1,404
Originated in 2019	10,600	25
Originated in 2018	4,617	9,675
Originated in 2017	4,371	1,759
Originated prior to 2017	9,981	10,720
Revolving Loans	22,834	16,260
Financing receivable, gross	56,072	42,902
Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member]
Originated in 2021	1,245	2,551
Originated in 2020	1,323	1,404
Originated in 2019	942	10
Originated in 2018	846	253
Originated in 2017	915	163
Originated prior to 2017	784	281
Revolving Loans	19,801	14,948
Financing receivable, gross	25,856	19,610
Special Mention [Member] | Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Originated in 2021	0	0
Originated in 2020	0	0
Originated in 2019	6,594	0
Originated in 2018	2,500	0
Originated in 2017	0	0
Originated prior to 2017	917	0
Revolving Loans	0	0
Financing receivable, gross	10,011	0
Special Mention [Member] | Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Originated in 2021	101	0
Originated in 2020	0	0
Originated in 2019	2,417	0
Originated in 2018	779	6,524
Originated in 2017	476	543
Originated prior to 2017	2,688	1,873
Revolving Loans	0	200
Financing receivable, gross	6,461	9,140
Special Mention [Member] | Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Originated in 2021	0	508
Originated in 2020	1,000	0
Originated in 2019	517	0
Originated in 2018	116	105
Originated in 2017	260	481
Originated prior to 2017	912	0
Revolving Loans	3,033	1,112
Financing receivable, gross	5,838	2,206
Special Mention [Member] | Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Originated in 2021	0	0
Originated in 2020	0	0
Originated in 2019	130	0
Originated in 2018	376	2,793
Originated in 2017	2,720	541
Originated prior to 2017	4,656	8,566
Revolving Loans	0	0
Financing receivable, gross	7,882	11,900
Special Mention [Member] | Consumer Portfolio Segment [Member]
Originated in 2021	0	0
Originated in 2020	0	0
Originated in 2019	0	15
Originated in 2018	0	0
Originated in 2017	0	31
Originated prior to 2017	24	0
Revolving Loans	0	0
Financing receivable, gross	24	46
Substandard [Member]
Originated in 2021	0	919
Originated in 2020	537	10,815
Originated in 2019	10,632	5,218
Originated in 2018	6,479	15,014
Originated in 2017	10,072	1,181
Originated prior to 2017	12,949	4,235
Revolving Loans	43,796	51,125
Financing receivable, gross	84,465	88,507
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member]
Originated in 2021	0	569
Originated in 2020	387	10,639
Originated in 2019	10,039	617
Originated in 2018	1,741	5,447
Originated in 2017	1,501	963
Originated prior to 2017	7,966	2,038
Revolving Loans	42,640	48,525
Financing receivable, gross	64,274	68,798
Substandard [Member] | Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Originated in 2021	0	0
Originated in 2020	0	0
Originated in 2019	0	0
Originated in 2018	0	0
Originated in 2017	0	0
Originated prior to 2017	0	235
Revolving Loans	0	0
Financing receivable, gross	0	235
Substandard [Member] | Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Originated in 2021	0	0
Originated in 2020	0	0
Originated in 2019	0	12
Originated in 2018	0	780
Originated in 2017	0	0
Originated prior to 2017	4,372	1,962
Revolving Loans	0	240
Financing receivable, gross	4,372	2,994
Substandard [Member] | Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Originated in 2021	0	350
Originated in 2020	150	126
Originated in 2019	593	0
Originated in 2018	241	235
Originated in 2017	231	218
Originated prior to 2017	611	0
Revolving Loans	1,156	2,360
Financing receivable, gross	2,982	3,289
Substandard [Member] | Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Originated in 2021	0	0
Originated in 2020	0	50
Originated in 2019	0	4,589
Originated in 2018	4,497	8,552
Originated in 2017	8,340	0
Originated prior to 2017	0	0
Revolving Loans	0	0
Financing receivable, gross	12,837	13,191
Substandard [Member] | Consumer Portfolio Segment [Member]
Originated in 2021	0	0
Originated in 2020	0	0
Originated in 2019	0	0
Originated in 2018	0	0
Originated in 2017	0	0
Originated prior to 2017	0	0
Revolving Loans	0	0
Financing receivable, gross	0	0
Doubtful [Member]
Originated in 2021	0	0
Originated in 2020	0	0
Originated in 2019	0	0
Originated in 2018	0	0
Originated in 2017	0	0
Originated prior to 2017	0	0
Revolving Loans	0	0
Financing receivable, gross	0	0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member]
Originated in 2021	0	0
Originated in 2020	0	0
Originated in 2019	0	0
Originated in 2018	0	0
Originated in 2017	0	0
Originated prior to 2017	0	0
Revolving Loans	0	0
Financing receivable, gross	0	0
Doubtful [Member] | Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Originated in 2021	0	0
Originated in 2020	0	0
Originated in 2019	0	0
Originated in 2018	0	0
Originated in 2017	0	0
Originated prior to 2017	0	0
Revolving Loans	0	0
Financing receivable, gross	0	0
Doubtful [Member] | Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Originated in 2021	0	0
Originated in 2020	0	0
Originated in 2019	0	0
Originated in 2018	0	0
Originated in 2017	0	0
Originated prior to 2017	0	0
Revolving Loans	0	0
Financing receivable, gross	0	0
Doubtful [Member] | Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Originated in 2021	0	0
Originated in 2020	0	0
Originated in 2019	0	0
Originated in 2018	0	0
Originated in 2017	0	0
Originated prior to 2017	0	0
Revolving Loans	0	0
Financing receivable, gross	0	0
Doubtful [Member] | Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Originated in 2021	0	0
Originated in 2020	0	0
Originated in 2019	0	0
Originated in 2018	0	0
Originated in 2017	0	0
Originated prior to 2017	0	0
Revolving Loans	0	0
Financing receivable, gross	0	0
Doubtful [Member] | Consumer Portfolio Segment [Member]
Originated in 2021	0	0
Originated in 2020	0	0
Originated in 2019	0	0
Originated in 2018	0	0
Originated in 2017	0	0
Originated prior to 2017	0	0
Revolving Loans	0	0
Financing receivable, gross	$ 0	$ 0

Note 3 - Loans - Loans by Perfo

Note 3 - Loans - Loans by Performance Status (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing receivable, gross	$ 9,532,934	$ 8,465,688
Performing Financial Instruments [Member]
Financing receivable, gross	9,520,837	8,446,734
Nonperforming Financial Instruments [Member]
Financing receivable, gross	12,097	18,954
Commercial Real Estate Portfolio Segment [Member]
Financing receivable, gross	2,984,053	3,295,900
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member]
Financing receivable, gross	2,979,671	3,284,180
Commercial Real Estate Portfolio Segment [Member] | Nonperforming Financial Instruments [Member]
Financing receivable, gross	4,382	11,720
Real Estate Portfolio Segment[Member]
Financing receivable, gross	5,378,952	4,511,304
Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Financing receivable, gross	1,103,076	593,614
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Financing receivable, gross	1,874,103	1,693,428
Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Financing receivable, gross	826,765	711,692
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Financing receivable, gross	2,678,084	2,106,184
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member]
Financing receivable, gross	5,371,266	4,504,365
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | Construction Loans [Member]
Financing receivable, gross	1,103,076	593,380
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | Owner Occupied Commercial [Member]
Financing receivable, gross	1,873,082	1,692,169
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | One to Four Family [Member]
Financing receivable, gross	824,756	710,817
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | Other Mortgages [Member]
Financing receivable, gross	2,673,428	2,101,379
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member]
Financing receivable, gross	7,686	6,939
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | Construction Loans [Member]
Financing receivable, gross	0	234
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | Owner Occupied Commercial [Member]
Financing receivable, gross	1,021	1,259
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | One to Four Family [Member]
Financing receivable, gross	2,009	875
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | Other Mortgages [Member]
Financing receivable, gross	4,656	4,805
Consumer Portfolio Segment [Member]
Financing receivable, gross	66,853	64,870
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Financing receivable, gross	66,824	64,809
Consumer Portfolio Segment [Member] | Nonperforming Financial Instruments [Member]
Financing receivable, gross	$ 29	$ 61

Note 3 - Loans - Loans Categori

Note 3 - Loans - Loans Categorized by Past Due Status (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing receivable, gross	$ 9,532,934	$ 8,465,688
Non-accrual	6,762	13,973
Nonaccrual With No ACL	3,563	6,080
Financial Asset, 30 to 59 Days Past Due [Member]
Financing receivable, gross	752	235
Financial Asset, 60 to 89 Days Past Due [Member]
Financing receivable, gross	803	3,819
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing receivable, gross	5,335	4,981
Financial Asset, Past Due [Member]
Financing receivable, gross	6,890	9,035
Financial Asset, Not Past Due [Member]
Financing receivable, gross	9,519,282	8,442,680
Commercial Real Estate Portfolio Segment [Member]
Financing receivable, gross	2,984,053	3,295,900
Non-accrual	4,343	11,709
Nonaccrual With No ACL	2,059	5,101
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing receivable, gross	516	92
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing receivable, gross	77	1,738
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing receivable, gross	39	11
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Financing receivable, gross	632	1,841
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Financing receivable, gross	2,979,078	3,282,350
Real Estate Portfolio Segment[Member]
Financing receivable, gross	5,378,952	4,511,304
Non-accrual	2,419	2,030
Nonaccrual With No ACL	1,504	979
Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Financing receivable, gross	1,103,076	593,614
Non-accrual	0	234
Nonaccrual With No ACL	0	0
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Financing receivable, gross	1,874,103	1,693,428
Non-accrual	1,021	1,259
Nonaccrual With No ACL	1,021	467
Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Financing receivable, gross	826,765	711,692
Non-accrual	1,398	771
Nonaccrual With No ACL	483	512
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Financing receivable, gross	2,678,084	2,106,184
Non-accrual	0	0
Nonaccrual With No ACL	0	0
Real Estate Portfolio Segment[Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing receivable, gross	143	79
Real Estate Portfolio Segment[Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Construction Loans [Member]
Financing receivable, gross	0	0
Real Estate Portfolio Segment[Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Owner Occupied Commercial [Member]
Financing receivable, gross	143	0
Real Estate Portfolio Segment[Member] | Financial Asset, 30 to 59 Days Past Due [Member] | One to Four Family [Member]
Financing receivable, gross	0	61
Real Estate Portfolio Segment[Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Other Mortgages [Member]
Financing receivable, gross	0	18
Real Estate Portfolio Segment[Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing receivable, gross	703	2,068
Real Estate Portfolio Segment[Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Construction Loans [Member]
Financing receivable, gross	0	0
Real Estate Portfolio Segment[Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Owner Occupied Commercial [Member]
Financing receivable, gross	0	995
Real Estate Portfolio Segment[Member] | Financial Asset, 60 to 89 Days Past Due [Member] | One to Four Family [Member]
Financing receivable, gross	703	1,073
Real Estate Portfolio Segment[Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Other Mortgages [Member]
Financing receivable, gross	0	0
Real Estate Portfolio Segment[Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing receivable, gross	5,267	4,909
Real Estate Portfolio Segment[Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction Loans [Member]
Financing receivable, gross	0	0
Real Estate Portfolio Segment[Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Owner Occupied Commercial [Member]
Financing receivable, gross	0	0
Real Estate Portfolio Segment[Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | One to Four Family [Member]
Financing receivable, gross	611	104
Real Estate Portfolio Segment[Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Other Mortgages [Member]
Financing receivable, gross	4,656	4,805
Real Estate Portfolio Segment[Member] | Financial Asset, Past Due [Member]
Financing receivable, gross	6,113	7,056
Real Estate Portfolio Segment[Member] | Financial Asset, Past Due [Member] | Construction Loans [Member]
Financing receivable, gross	0	0
Real Estate Portfolio Segment[Member] | Financial Asset, Past Due [Member] | Owner Occupied Commercial [Member]
Financing receivable, gross	143	995
Real Estate Portfolio Segment[Member] | Financial Asset, Past Due [Member] | One to Four Family [Member]
Financing receivable, gross	1,314	1,238
Real Estate Portfolio Segment[Member] | Financial Asset, Past Due [Member] | Other Mortgages [Member]
Financing receivable, gross	4,656	4,823
Real Estate Portfolio Segment[Member] | Financial Asset, Not Past Due [Member]
Financing receivable, gross	5,370,420	4,502,218
Real Estate Portfolio Segment[Member] | Financial Asset, Not Past Due [Member] | Construction Loans [Member]
Financing receivable, gross	1,103,076	593,380
Real Estate Portfolio Segment[Member] | Financial Asset, Not Past Due [Member] | Owner Occupied Commercial [Member]
Financing receivable, gross	1,872,939	1,691,174
Real Estate Portfolio Segment[Member] | Financial Asset, Not Past Due [Member] | One to Four Family [Member]
Financing receivable, gross	824,053	709,683
Real Estate Portfolio Segment[Member] | Financial Asset, Not Past Due [Member] | Other Mortgages [Member]
Financing receivable, gross	2,673,428	2,101,361
Consumer Portfolio Segment [Member]
Financing receivable, gross	66,853	64,870
Non-accrual	0	0
Nonaccrual With No ACL	0	0
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing receivable, gross	93	64
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing receivable, gross	23	13
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing receivable, gross	29	61
Consumer Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Financing receivable, gross	145	138
Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Financing receivable, gross	$ 66,708	$ 64,732

Note 3 - Loans - Summary of Col

Note 3 - Loans - Summary of Collateral Types (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Impaired Financing Receivable, Recorded Investment	$ 84,465	$ 88,505
Impaired Financing Receivable, ACL allocation	11,292	7,690
Commercial Real Estate Portfolio Segment [Member]
Impaired Financing Receivable, Recorded Investment	64,274	68,796
Impaired Financing Receivable, ACL allocation	9,727	7,142
Real Estate Portfolio Segment[Member]
Impaired Financing Receivable, Recorded Investment	20,191	19,474
Impaired Financing Receivable, ACL allocation	1,565	547
Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Impaired Financing Receivable, Recorded Investment		235
Impaired Financing Receivable, ACL allocation		1
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Impaired Financing Receivable, Recorded Investment	4,372	2,995
Impaired Financing Receivable, ACL allocation	1,371	499
Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Impaired Financing Receivable, Recorded Investment	2,982	3,288
Impaired Financing Receivable, ACL allocation	163	48
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Impaired Financing Receivable, Recorded Investment	12,837	13,191
Impaired Financing Receivable, ACL allocation	31	0
Real Estate [Member]
Impaired Financing Receivable, Recorded Investment	33,258	38,075
Real Estate [Member] | Commercial Real Estate Portfolio Segment [Member]
Impaired Financing Receivable, Recorded Investment	13,067	19,373
Real Estate [Member] | Real Estate Portfolio Segment[Member]
Impaired Financing Receivable, Recorded Investment	20,191	18,467
Real Estate [Member] | Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Impaired Financing Receivable, Recorded Investment		235
Real Estate [Member] | Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Impaired Financing Receivable, Recorded Investment	4,372	2,012
Real Estate [Member] | Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Impaired Financing Receivable, Recorded Investment	2,982	3,264
Real Estate [Member] | Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Impaired Financing Receivable, Recorded Investment	12,837	13,191
Collateral, Accounts Receivable [Member]
Impaired Financing Receivable, Recorded Investment	5,075	28,923
Collateral, Accounts Receivable [Member] | Commercial Real Estate Portfolio Segment [Member]
Impaired Financing Receivable, Recorded Investment	5,075	27,952
Collateral, Accounts Receivable [Member] | Real Estate Portfolio Segment[Member]
Impaired Financing Receivable, Recorded Investment	0	971
Collateral, Accounts Receivable [Member] | Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Impaired Financing Receivable, Recorded Investment		0
Collateral, Accounts Receivable [Member] | Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Impaired Financing Receivable, Recorded Investment	0	971
Collateral, Accounts Receivable [Member] | Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Impaired Financing Receivable, Recorded Investment	0	0
Collateral, Accounts Receivable [Member] | Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Impaired Financing Receivable, Recorded Investment	0	0
Equipment [Member]
Impaired Financing Receivable, Recorded Investment	18,533	16,877
Equipment [Member] | Commercial Real Estate Portfolio Segment [Member]
Impaired Financing Receivable, Recorded Investment	18,533	16,877
Equipment [Member] | Real Estate Portfolio Segment[Member]
Impaired Financing Receivable, Recorded Investment	0	0
Equipment [Member] | Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Impaired Financing Receivable, Recorded Investment		0
Equipment [Member] | Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Impaired Financing Receivable, Recorded Investment	0	0
Equipment [Member] | Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Impaired Financing Receivable, Recorded Investment	0	0
Equipment [Member] | Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Impaired Financing Receivable, Recorded Investment	0	0
Collateral, Other [Member]
Impaired Financing Receivable, Recorded Investment	27,599	4,630
Collateral, Other [Member] | Commercial Real Estate Portfolio Segment [Member]
Impaired Financing Receivable, Recorded Investment	27,599	4,594
Collateral, Other [Member] | Real Estate Portfolio Segment[Member]
Impaired Financing Receivable, Recorded Investment	0	36
Collateral, Other [Member] | Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Impaired Financing Receivable, Recorded Investment		0
Collateral, Other [Member] | Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Impaired Financing Receivable, Recorded Investment	0	12
Collateral, Other [Member] | Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Impaired Financing Receivable, Recorded Investment	0	24
Collateral, Other [Member] | Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Impaired Financing Receivable, Recorded Investment	$ 0	$ 0

Note 3 - Loans - Troubled Debt

Note 3 - Loans - Troubled Debt Restructurings (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Number of Contracts	3	4
Pre- Modification Outstanding Recorded Investment	$ 2,146	$ 1,532
Post- Modification Outstanding Recorded Investment	$ 2,146	$ 1,532
Commercial Real Estate Portfolio Segment [Member]
Number of Contracts	2	2
Pre- Modification Outstanding Recorded Investment	$ 1,155	$ 564
Post- Modification Outstanding Recorded Investment	$ 1,155	$ 564
Real Estate Portfolio Segment[Member]
Number of Contracts	1	1
Pre- Modification Outstanding Recorded Investment	$ 991	$ 611
Post- Modification Outstanding Recorded Investment	$ 991	$ 611
Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Number of Contracts	0	1
Pre- Modification Outstanding Recorded Investment	$ 0	$ 357
Post- Modification Outstanding Recorded Investment	$ 0	$ 357
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Number of Contracts	1	1
Pre- Modification Outstanding Recorded Investment	$ 991	$ 611
Post- Modification Outstanding Recorded Investment	$ 991	$ 611
Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Number of Contracts	0	0
Pre- Modification Outstanding Recorded Investment	$ 0	$ 0
Post- Modification Outstanding Recorded Investment	$ 0	$ 0
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Number of Contracts	0	0
Pre- Modification Outstanding Recorded Investment	$ 0	$ 0
Post- Modification Outstanding Recorded Investment	$ 0	$ 0
Consumer Portfolio Segment [Member]
Number of Contracts	0	0
Pre- Modification Outstanding Recorded Investment	$ 0	$ 0
Post- Modification Outstanding Recorded Investment	$ 0	$ 0

Note 3 - Loans - Changes In Rel

Note 3 - Loans - Changes In Related Party Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Balance	$ 36,969	$ 24,681
Additions	3,168	0
Advances	90,553	41,183
Repayments	(79,445)	(28,895)
Removal	(65)	0
Balance	$ 51,180	$ 36,969

Note 4 - Foreclosed Propertie_2

Note 4 - Foreclosed Properties - Summary of Foreclosed Properties (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Balance at beginning of year	$ 6,497	$ 8,178	$ 5,169
Transfers from loans and capitalized expenses	2,318	2,985	4,611
Foreclosed properties sold	(6,474)	(2,813)	(1,437)
Write downs and partial liquidations	(1,133)	(1,853)	(165)
Balance at end of year	$ 1,208	$ 6,497	$ 8,178

Note 5 - Premises and Equipme_3

Note 5 - Premises and Equipment (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Depreciation, Depletion and Amortization, Nonproduction, Total	$ 4.1	$ 3.8	$ 3.7

Note 5 - Premises and Equipme_4

Note 5 - Premises and Equipment - Components of Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, plant, and equipment, gross	$ 88,736	$ 81,317
Accumulated depreciation	(28,436)	(26,348)
Total premises and equipment, net	60,300	54,969
Land [Member]
Property, plant, and equipment, gross	5,830	5,830
Building [Member]
Property, plant, and equipment, gross	38,261	36,365
Furniture and Equipment [Member]
Property, plant, and equipment, gross	31,183	27,466
Leasehold Improvements [Member]
Property, plant, and equipment, gross	13,400	10,789
Construction in Progress [Member]
Property, plant, and equipment, gross	$ 62	$ 867

Note 6 - Leases - Lease Costs (

Note 6 - Leases - Lease Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Weighted average remaining lease term (Year)	6 years 9 months 18 days	4 years 10 months 24 days
Weighted average discount rate	2.46%	3.20%
Operating lease cost	$ 4,009	$ 3,476
Short-term lease cost	0	45
Variable lease cost	430	151
Sublease income	(94)	(93)
Net lease cost	4,345	3,579
Other Assets [Member]
Right-of-use assets	17,916	10,452
Other Liabilities [Member]
Lease liabilities	$ 18,549	$ 10,645

Note 6 - Leases - Maturities of

Note 6 - Leases - Maturities of Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
2022	$ 4,084
2023	3,520
2024	2,566
2025	2,481
2026	1,903
Thereafter	5,509
Total lease payments	20,063
Less: imputed interest	(1,514)
Other Liabilities [Member]
Lease liabilities	$ 18,549	$ 10,645

Note 7 - Variable Interest En_2

Note 7 - Variable Interest Entities (VIEs) (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Loan [Member]
Limited Partners' Capital Account, Total	$ 32,000	$ 0
Variable Interest Entity, Not Primary Beneficiary [Member]
Limited Partners' Capital Account, Total	69,900	$ 4,000
Variable Interest Entity, Not Primary Beneficiary [Member] | Federal New Market Tax Credit Partnerships [Member]
Limited Partners' Capital Account, Total	$ 63,300
Variable Interest Entity, Number of Investments	2
Variable Interest Entity, Not Primary Beneficiary [Member] | Federal Historic Tax Credit Partnerships [Member]
Limited Partners' Capital Account, Total	$ 1,500
Variable Interest Entity, Not Primary Beneficiary [Member] | Low-Income Housing Tax Credit Partnerships [Member]
Limited Partners' Capital Account, Total	$ 1,100

Note 8 - Deposits (Details Text

Note 8 - Deposits (Details Textual) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Deposit Liabilities Reclassified as Loans Receivable	$ 4	$ 1.4

Note 8 - Deposits - Summary of

Note 8 - Deposits - Summary of Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Noninterest-bearing demand	$ 4,799,767	$ 2,788,772
Interest-bearing checking	6,707,778	6,276,910
Savings	131,955	89,418
Time deposits, $250,000 and under	256,185	273,301
Time deposits, over $250,000	507,151	497,323
Brokered time deposits	50,000	50,000
Deposits, Total	$ 12,452,836	$ 9,975,724

Note 8 - Deposits - Scheduled M

Note 8 - Deposits - Scheduled Maturities of Time Deposits (Details) $ in Thousands	Dec. 31, 2021USD ($)
2022	$ 566,698
2023	174,332
2024	26,993
2025	10,039
2026	35,275
Total	$ 813,336

Note 9 - Federal Funds Purcha_2

Note 9 - Federal Funds Purchased (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Federal Funds Purchased, Portion from Customers of Correspondent Banks	$ 1,710,000	$ 851,500
Short-term Borrowings from Various Financial Institutions [Member]
Line of Credit Facility, Maximum Borrowing Capacity	986,000	$ 923,000
Long-term Line of Credit, Total	$ 0
Federal Funds Purchased [Member] | Minimum [Member]
Debt Instrument, Interest Rate, Stated Percentage	0.15%	0.15%
Federal Funds Purchased [Member] | Maximum [Member]
Debt Instrument, Interest Rate, Stated Percentage	0.25%	0.25%

Note 10 - Other Borrowings (Det

Note 10 - Other Borrowings (Details Textual) - USD ($)	Dec. 31, 2021	Dec. 31, 2020	Oct. 31, 2020	Nov. 30, 2017
Other Borrowings	$ 64,706,000	$ 64,748,000
Debt Issuance Costs, Net, Total	$ 44,000	$ 64,000
Subordinates Note Due November 8, 2027 [Member]
Other Borrowings				$ 30,000,000
Debt Instrument, Interest Rate, Stated Percentage				4.50%
Subordinates Note Due October 21, 2030 [Member]
Other Borrowings			$ 34,750,000
Debt Instrument, Interest Rate, Stated Percentage	4.00%		4.00%

Note 12 - Derivatives (Details

Note 12 - Derivatives (Details Textual) - Interest Rate Cap [Member] - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	May 31, 2020	Dec. 31, 2021
Derivative, Term of Contract (Year)	3 years
Derivative, Notional Amount	$ 300,000
Derivative, Fair Value, Net, Total		$ 1,150
Derivative, Remaining Maturity (Year)		1 year 4 months 24 days
London Interbank Offered Rate (LIBOR) [Member]
Derivative, Cap Interest Rate	0.50%

Note 13 - Employee and Direct_3

Note 13 - Employee and Director Benefits (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2014	Mar. 23, 2009
Share-based Payment Arrangement, Expense	$ 1,900,000	$ 1,300,000	$ 1,100,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)			$ 12.40
Postemployment Benefits, Period Expense	$ 1,600,000	$ 2,000,000	$ 1,700,000
Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)			36,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total	$ 393,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	1 year 7 months 6 days
Restricted Stock [Member]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total	$ 2,800,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	2 years
Performance Shares [Member]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total	$ 460,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	2 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	3 years
Performance Shares [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Vested Upon Certain Performance Metrics, Percentage	0.00%
Performance Shares [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Vested Upon Certain Performance Metrics, Percentage	150.00%
The 2009 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)				5,550,000	2,550,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)	3,140,562

Note 13 - Employee and Direct_4

Note 13 - Employee and Director Benefits - Assumptions Used to Estimate Fair Value of Stock Option Awards (Details) - Share-based Payment Arrangement, Option [Member]	12 Months Ended
	Dec. 31, 2021
Expected price volatility	40.00%
Expected dividend yield	1.76%
Expected term (Year)	7 years
Risk-free rate	1.96%

Note 13 - Employee and Direct_5

Note 13 - Employee and Director Benefits - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Shares, exercisable (in shares)	264,000
Weighted Average Exercise Price, exercisable (in dollars per share)	$ 12.89
Weighted Average Remaining Contractual Term, exercisable (Year)	2 years 9 months 18 days
Aggregate Intrinsic Value, exercisable	$ 19,353
Granted (in shares)	0
Share-based Payment Arrangement, Option [Member]
Outstanding, shares (in shares)	641,450	965,750	1,238,750
Outstanding, weighted average exercise price (in dollars per share)	$ 18.15	$ 15.20	$ 13.02
Outstanding, weighted average remaining contractual term (Year)	3 years 9 months 18 days	4 years 7 months 6 days	4 years 10 months 24 days	5 years 2 months 12 days
Outstanding, aggregate intrinsic value	$ 23,525	$ 16,985	$ 21,914	$ 23,355
Exercised (in shares)	(278,200)	(306,300)	(288,800)
Exercised, weighted average exercise price (in dollars per share)	$ 12.58	$ 11.38	$ 7.56
Exercised, weighted average remaining contractual term (Year)	2 years 9 months 18 days	2 years 10 months 24 days	2 years 6 months
Exercised, aggregate intrinsic value	$ 20,131	$ 8,854	$ 8,534
Forfeited (in shares)	(10,000)	(18,000)	(20,200)
Forfeited, weighted average exercise price (in dollars per share)	$ 38.38	$ 30.79	$ 24.88
Forfeited, weighted average remaining contractual term (Year)	5 years 2 months 12 days	6 years 1 month 6 days	6 years 2 months 12 days
Forfeited, aggregate intrinsic value	$ 466	$ 171	$ 259
Outstanding, shares (in shares)	(353,250)	(641,450)	(965,750)	(1,238,750)
Outstanding, weighted average exercise price (in dollars per share)	$ 19.28	$ 18.15	$ 15.20	$ 13.02
Shares, exercisable (in shares)	264,000	182,200	278,500
Weighted Average Exercise Price, exercisable (in dollars per share)	$ 12.89	$ 12.86	$ 8.28
Weighted Average Remaining Contractual Term, exercisable (Year)	2 years 9 months 18 days	3 years 6 months	3 years
Aggregate Intrinsic Value, exercisable	$ 19,353	$ 4,998	$ 8,355
Outstanding, shares (in shares)	353,250	641,450	965,750	1,238,750
Granted (in shares)			36,000
Granted, weighted average exercise price (in dollars per share)			$ 34.04
Granted, weighted average remaining contractual term (Year)			9 years 7 months 6 days
Granted, aggregate intrinsic value			$ 132

Note 13 - Employee and Direct_6

Note 13 - Employee and Director Benefits - Exercisable Options Activity (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)$ / sharesshares
Shares, exercisable (in shares) | shares	264,000
Weighted Average Exercise Price, exercisable (in dollars per share)	$ 12.89
Weighted Average Remaining Contractual Term, exercisable (Year)	2 years 9 months 18 days
Aggregate Intrinsic Value, exercisable | $	$ 19,353
Exercise Price Range 1 [Member]
Range of Exercise Price, Lower Range (in dollars per share)	$ 5
Range of Exercise Price, Upper Range (in dollars per share)	$ 6
Shares, exercisable (in shares) | shares	49,000
Weighted Average Exercise Price, exercisable (in dollars per share)	$ 5.41
Weighted Average Remaining Contractual Term, exercisable (Year)	1 year 1 month 6 days
Aggregate Intrinsic Value, exercisable | $	$ 3,897
Exercise Price Range 2 [Member]
Range of Exercise Price, Lower Range (in dollars per share)	$ 6
Range of Exercise Price, Upper Range (in dollars per share)	$ 7
Shares, exercisable (in shares) | shares	53,500
Weighted Average Exercise Price, exercisable (in dollars per share)	$ 6.92
Weighted Average Remaining Contractual Term, exercisable (Year)	2 years 7 months 6 days
Aggregate Intrinsic Value, exercisable | $	$ 4,174
Exercise Price Range 3 [Member]
Range of Exercise Price, Lower Range (in dollars per share)	$ 15
Range of Exercise Price, Upper Range (in dollars per share)	$ 16
Shares, exercisable (in shares) | shares	81,000
Weighted Average Exercise Price, exercisable (in dollars per share)	$ 15.41
Weighted Average Remaining Contractual Term, exercisable (Year)	3 years
Aggregate Intrinsic Value, exercisable | $	$ 5,632
Exercise Price Range 4 [Member]
Range of Exercise Price, Lower Range (in dollars per share)	$ 17
Range of Exercise Price, Upper Range (in dollars per share)	$ 18
Shares, exercisable (in shares) | shares	21,500
Weighted Average Exercise Price, exercisable (in dollars per share)	$ 17.17
Weighted Average Remaining Contractual Term, exercisable (Year)	3 years 3 months 18 days
Aggregate Intrinsic Value, exercisable | $	$ 1,457
Exercise Price Range 5 [Member]
Range of Exercise Price, Lower Range (in dollars per share)	$ 18
Range of Exercise Price, Upper Range (in dollars per share)	$ 19
Shares, exercisable (in shares) | shares	6,000
Weighted Average Exercise Price, exercisable (in dollars per share)	$ 18.49
Weighted Average Remaining Contractual Term, exercisable (Year)	3 years 8 months 12 days
Aggregate Intrinsic Value, exercisable | $	$ 732
Exercise Price Range 6 [Member]
Range of Exercise Price, Lower Range (in dollars per share)	$ 19
Range of Exercise Price, Upper Range (in dollars per share)	$ 20
Shares, exercisable (in shares) | shares	49,000
Weighted Average Exercise Price, exercisable (in dollars per share)	$ 19.16
Weighted Average Remaining Contractual Term, exercisable (Year)	4 years 1 month 6 days
Aggregate Intrinsic Value, exercisable | $	$ 3,223
Exercise Price Range 7 [Member]
Range of Exercise Price, Lower Range (in dollars per share)	$ 25
Range of Exercise Price, Upper Range (in dollars per share)	$ 26
Shares, exercisable (in shares) | shares	4,000
Weighted Average Exercise Price, exercisable (in dollars per share)	$ 25.41
Weighted Average Remaining Contractual Term, exercisable (Year)	4 years 8 months 12 days
Aggregate Intrinsic Value, exercisable | $	$ 238

Note 13 - Employee and Direct_7

Note 13 - Employee and Director Benefits - Summary of Restricted Stock and Performance Shares Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restricted Stock [Member]
Non-vested, shares (in shares)	84,307	71,290	42,576
Non-vested, weighted average grant date fair value (in dollars per share)	$ 34.92	$ 32.24	$ 29.96
Granted, shares (in shares)	69,295	33,695	36,664
Granted, weighted average grant date fair value (in dollars per share)	$ 48.92	$ 33.91	$ 33.60
Vested, shares (in shares)	(14,274)	(20,178)	(5,450)
Vested, weighted average grant date fair value (in dollars per share)	$ 29.33	$ 23.76	$ 20.92
Forfeited, shares (in shares)	(12,353)	(500)	(2,500)
Forfeited, weighted average grant date fair value (in dollars per share)	$ 39.60	$ 34.09	$ 38.17
Non-vested, shares (in shares)	126,975	84,307	71,290
Non-vested, weighted average grant date fair value (in dollars per share)	$ 42.28	$ 34.92	$ 32.24
Performance Shares [Member]
Non-vested, shares (in shares)	0	0	0
Non-vested, weighted average grant date fair value (in dollars per share)	$ 0	$ 0	$ 0
Granted, shares (in shares)	12,437	0	0
Granted, weighted average grant date fair value (in dollars per share)	$ 37.05	$ 0	$ 0
Vested, shares (in shares)	0	0	0
Vested, weighted average grant date fair value (in dollars per share)	$ 0	$ 0	$ 0
Forfeited, shares (in shares)	0	0	0
Forfeited, weighted average grant date fair value (in dollars per share)	$ 0	$ 0	$ 0
Non-vested, shares (in shares)	12,437	0	0
Non-vested, weighted average grant date fair value (in dollars per share)	$ 37.05	$ 0	$ 0

Note 14 - Regulatory Matters (D

Note 14 - Regulatory Matters (Details Textual) $ in Millions	Dec. 31, 2021USD ($)
Cumulative Dividends	$ 449.8

Note 14 - Regulatory Matters -

Note 14 - Regulatory Matters - The Company's and Bank's Actual Capital Amounts and Ratios (Details) $ in Thousands	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)
CET 1 Capital to risk weighted assets, amount	$ 1,123,826	$ 958,300
CET 1 Capital to risk weighted assets, ratio	0.0995	0.1050
CET 1 Capital to risk weighted assets, for capital adequacy purposes, amount	$ 508,027	$ 410,816
CET 1 capital to risk weighted assets, for capital adequacy purposes, ratio	4.50%	4.50%
Tier 1 capital to risk weighted assets, amount	$ 1,124,326	$ 958,800
Tier 1 capital to risk weighted assets, ratio	0.0996	0.1050
Tier 1 capital to risk weighted assets, for capital adequacy purposes, amount	$ 677,370	$ 547,755
Tier 1 capital to risk weighted assets, for capital adequacy purposes, ratio	0.0600	0.0600
Total capital to risk weighted assets, amount	$ 1,306,992	$ 1,113,690
Total capital to risk weighted assets, ratio	0.1158	0.1220
Total capital to risk weighted assets, for capital adequacy purposes, amount	$ 903,160	$ 730,340
Total capital to risk weighted assets, for capital adequacy purposes, ratio	0.0800	0.0800
Tier 1 capital to average assets, amount	$ 1,124,326	$ 958,800
Tier 1 capital to average assets, ratio	0.0739	0.0823
Tier 1 capital to average assets, for capital adequacy purposes, amount	$ 608,883	$ 465,980
Tier 1 capital to average assets, for capital adequacy purposes, ratio	0.0400	0.0400
Servisfirst Bank [Member]
CET 1 Capital to risk weighted assets, amount	$ 1,185,161	$ 1,018,031
CET 1 Capital to risk weighted assets, ratio	0.1050	0.1115
CET 1 Capital to risk weighted assets, for capital adequacy purposes, amount	$ 507,969	$ 410,766
CET 1 capital to risk weighted assets, for capital adequacy purposes, ratio	4.50%	4.50%
CET 1 capital to risk weighted assets, to be well capitalized under prompt corrective action provisions, amount	$ 733,733	$ 593,328
CET 1 capital to risk weighted assets, to be well capitalized under prompt corrective action provisions, ratio	6.50%	6.50%
Tier 1 capital to risk weighted assets, amount	$ 1,185,661	$ 1,018,531
Tier 1 capital to risk weighted assets, ratio	0.1050	0.1116
Tier 1 capital to risk weighted assets, for capital adequacy purposes, amount	$ 677,292	$ 547,688
Tier 1 capital to risk weighted assets, for capital adequacy purposes, ratio	0.0600	0.0600
Tier 1 capital to risk weighted assets, to be well capitalized under prompt corrective action provisions, amount	$ 903,056	$ 730,250
Tier 1 capital to risk weighted assets, to be well capitalized under prompt corrective action provisions, ratio	0.0800	0.0800
Total capital to risk weighted assets, amount	$ 1,303,621	$ 1,108,673
Total capital to risk weighted assets, ratio	0.1155	0.1215
Total capital to risk weighted assets, for capital adequacy purposes, amount	$ 903,056	$ 730,250
Total capital to risk weighted assets, for capital adequacy purposes, ratio	0.0800	0.0800
Total capital to risk weighted assets, to be well capitalized under prompt corrective action provisions, amount	$ 1,128,821	$ 912,813
Total capital to risk weighted assets, to be well capitalized under prompt corrective action provisions, ratio	0.1000	0.1000
Tier 1 capital to average assets, amount	$ 1,185,661	$ 1,018,531
Tier 1 capital to average assets, ratio	0.0779	0.0875
Tier 1 capital to average assets, for capital adequacy purposes, amount	$ 608,826	$ 465,448
Tier 1 capital to average assets, for capital adequacy purposes, ratio	0.0400	0.0400
Tier 1 capital to average assets, to be well capitalized under prompt corrective action provisions, amount	$ 761,033	$ 581,810
Tier 1 capital to average assets, to be well capitalized uner prompt corrective action provisions, ratio	0.0500	0.0500

Note 15 - Other Operating Inc_3

Note 15 - Other Operating Income and Expenses - Other Operating Income and Expense Included in Noninterest Income and Noninterest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
ATM fee income	$ 1,443	$ 1,234	$ 1,001
Mark to market interest rate cap derivative	1,013	(656)	0
Gain (loss) on sale of fixed assets	433	9	5
Merchant services fees	1,231	565	415
Other	544	463	322
Total other operating income	4,664	1,615	1,743
Other loan expenses	2,744	4,886	3,476
Customer and public relations	1,840	1,052	2,545
Sales and use tax	1,016	528	640
Write-down investment in tax credit partnerships	9,152	346	746
Telephone	453	541	1,131
Donations and contributions	544	506	837
Marketing	498	338	581
Supplies	504	495	572
Fraud and forgery losses	425	463	577
Directors fees	659	632	545
Postage	290	278	393
Other operational losses	144	1,662	36
Core processing deconverison expense	3,007	0	0
Other	5,881	3,763	4,135
Total other operating expenses	$ 27,157	$ 15,490	$ 16,214

Note 16 - Income Taxes (Details

Note 16 - Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total	$ 169,000	$ 152,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 3,659,000	$ 3,238,000
State and Local Jurisdiction [Member]
Income Tax Examination, Year under Examination	2018 2019 2020 2021
Internal Revenue Service (IRS) [Member]
Income Tax Examination, Year under Examination	2018 2019 2020 2021

Note 16 - Income Taxes - Income

Note 16 - Income Taxes - Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Federal	$ 45,248	$ 50,016	$ 36,683
State	5,428	4,350	2,012
Total current tax expense	50,676	54,366	38,695
Federal	(5,596)	(9,342)	(166)
State	535	(385)	(911)
Total deferred tax (benefit)	(5,061)	(9,727)	(1,077)
Effective income tax and rate, amount	$ 45,615	$ 44,639	$ 37,618

Note 16 - Income Taxes - Reconc

Note 16 - Income Taxes - Reconciliation From Federal Income Tax Statutory Rates to Income Before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income tax at statutory federal rate, amount	$ 53,203	$ 44,984	$ 39,241
Income tax at statutory federal rate, pre-tax earnings	21.00%	21.00%	21.00%
State income tax, net of federal tax effect, amount	$ 4,952	$ 3,230	$ 822
State income tax, net of federal tax effect, pre-tax earnings	1.95%	1.51%	0.44%
Tax-exempt income, net of expenses, amount	$ (242)	$ (354)	$ (461)
Tax-exempt income, net of expenses, pre-tax earnings	(0.10%)	(0.17%)	(0.25%)
Bank owned life insurance contracts, amount	$ (1,395)	$ (1,325)	$ (787)
Bank owned life insurance contracts, pre-tax earnings	(0.55%)	(0.62%)	(0.42%)
Excess tax benefit from stock compensation, amount	$ (2,335)	$ (1,306)	$ (1,405)
Excess tax benefit from stock compensation, pre-tax earnings	(0.92%)	(0.61%)	(0.75%)
Federal tax credits, amount	$ (11,019)	$ (563)	$ (170)
Federal tax credits, pre-tax earnings	(4.35%)	(0.26%)	(0.09%)
Other, amount	$ 2,451	$ (27)	$ 378
Other, pre-tax earnings	0.97%	(0.01%)	0.20%
Effective income tax and rate, amount	$ 45,615	$ 44,639	$ 37,618
Effective income tax and rate, pre-tax earnings	18.00%	20.84%	20.13%

Note 16 - Income Taxes - Compon

Note 16 - Income Taxes - Components of Net Deferred Tax Asset (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Allowance for credit losses	$ 29,237	$ 21,600
Other real estate owned	520	728
Nonqualified equity awards	816	873
Nonaccrual interest	289	322
State tax credits	3,988	6,091
Deferred loan fees	5,087	5,875
Reserve for unfunded commitments	435	600
Accrued bonus	3,910	2,594
Capital loss carryforward	1,867	1,480
Lease liability	4,654	2,671
Deferred revenue	31	42
Other deferred tax assets	1,429	885
Total deferred tax assets	52,263	43,761
Deferred tax liabilities:
Net unrealized gain on securities available for sale	3,723	5,360
Depreciation	4,872	4,011
Prepaid expenses	607	543
Investments	696	79
Right-of-use assets and other leasing transactions	4,495	2,622
Acquired intangible assets	6	74
Other deferred tax liabilities	92	0
Total deferred tax liabilities	14,491	12,689
Net deferred tax assets	$ 37,772	$ 31,072

Note 16 - Income Taxes - Summar

Note 16 - Income Taxes - Summary of the Changes in the Amount of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Balance, beginning of year	$ 3,238	$ 2,683	$ 2,133
Increases related to prior year tax positions	864	997	998
Decreases related to prior year tax positions	0	0	0
Increases related to current year tax positions	0	0	0
Settlements	0	0	0
Lapse of statute	(443)	(442)	(448)
Balance, end of year	$ 3,659	$ 3,238	$ 2,683

Note 17 - Commitments and Con_3

Note 17 - Commitments and Contingencies - Summary of Commitments and Contingent Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Commitments to extend credit	$ 3,515,818	$ 2,606,258	$ 2,303,788
Credit card arrangements	366,525	286,128	248,617
Standby letters of credit and financial guarantees	61,856	66,208	48,394
Total	$ 3,944,199	$ 2,958,594	$ 2,600,799

Note 19 - Earnings Per Common_3

Note 19 - Earnings Per Common Share - Summary of Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Weighted average common shares outstanding (in shares)									54,160,990	53,844,482	53,530,766
Net income available to common stockholders	$ 53,722	$ 52,499	$ 49,996	$ 51,455	$ 50,949	$ 43,362	$ 40,417	$ 34,778	$ 207,672	$ 169,506	$ 149,180
Basic earnings per common share (in dollars per share)	$ 0.99	$ 0.97	$ 0.92	$ 0.95	$ 0.94	$ 0.80	$ 0.75	$ 0.65	$ 3.83	$ 3.15	$ 2.79
Dilutive effects of assumed exercise of stock options and vesting of performance shares (in shares)									273,583	374,555	572,308
Weighted average common and dilutive potential common shares outstanding (in shares)									54,434,573	54,219,037	54,103,074
Net income available to common stockholders									$ 207,672	$ 169,506	$ 149,180
Diluted earnings per common share (in dollars per share)	$ 0.99	$ 0.96	$ 0.92	$ 0.95	$ 0.94	$ 0.80	$ 0.75	$ 0.64	$ 3.82	$ 3.13	$ 2.76

Note 20 - Related Party Trans_2

Note 20 - Related Party Transactions (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Loans and Leases Receivable, Net of Deferred Income, Total	$ 9,532,934	$ 8,465,688
Related Party [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	$ 51,200	$ 37,000

Note 21 - Fair Value Measurem_3

Note 21 - Fair Value Measurement (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Asset Impairment Charges, Total	$ 6,200,000	$ 25,800,000
Real Estate Owned, Amount of Loss at Acquisition	1,100,000	2,500,000
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Foreclosure	50,000	209,000
Mortgage Loans in Process of Foreclosure, Amount	299,000
Liabilities, Total	14,296,791,000	10,939,802,000
Fair Value, Nonrecurring [Member]
Liabilities, Total	$ 0	0
Fair Value, Recurring [Member]
Liabilities, Total		$ 0
Minimum [Member]
Impaired Loans, Fair Value Adjustment, Percent	0.00%	0.00%
Real Estate Owned, Fair Value Adjustment, Percent	0.00%	5.00%
Maximum [Member]
Impaired Loans, Fair Value Adjustment, Percent	75.00%	56.00%
Real Estate Owned, Fair Value Adjustment, Percent	100.00%	27.00%
Weighted Average [Member]
Impaired Loans, Fair Value Adjustment, Percent	24.10%	22.30%
Real Estate Owned, Fair Value Adjustment, Percent	40.60%	12.50%

Note 21 - Fair Value Measurem_4

Note 21 - Fair Value Measurement - Financial Assets and Financial Liabilities Carried at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Available for sale, fair value	$ 842,570	$ 886,688
US Treasury Securities [Member]
Available for sale, fair value	9,104	14,357
US Government Agencies Debt Securities [Member]
Available for sale, fair value	6,041	15,458
Collateralized Mortgage Backed Securities [Member]
Available for sale, fair value	425,161	495,109
US States and Political Subdivisions Debt Securities [Member]
Available for sale, fair value	21,634	38,115
Corporate Debt Securities [Member]
Available for sale, fair value	380,630	323,649
Fair Value, Recurring [Member]
Available for sale, fair value	842,570	886,688
Interest rate cap derivative		139
Total assets at fair value	843,722	886,827
Fair Value, Recurring [Member] | Interest Rate Swap [Member]
Interest rate cap derivative	1,152
Fair Value, Recurring [Member] | US Treasury Securities [Member]
Available for sale, fair value	9,104	14,357
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member]
Available for sale, fair value	6,041	15,458
Fair Value, Recurring [Member] | Collateralized Mortgage Backed Securities [Member]
Available for sale, fair value	425,161	495,109
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]
Available for sale, fair value	21,634	38,115
Fair Value, Recurring [Member] | Corporate Debt Securities [Member]
Available for sale, fair value	380,630	323,649
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member]
Available for sale, fair value	9,104	14,357
Total assets at fair value	9,104	14,357
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | Interest Rate Swap [Member]
Interest rate cap derivative	0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | US Treasury Securities [Member]
Available for sale, fair value	9,104	14,357
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member]
Available for sale, fair value	0	0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | Collateralized Mortgage Backed Securities [Member]
Available for sale, fair value	0	0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]
Available for sale, fair value	0	0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | Corporate Debt Securities [Member]
Available for sale, fair value	0	0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]
Available for sale, fair value	816,474	872,331
Interest rate cap derivative		139
Total assets at fair value	817,626	872,470
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Interest Rate Swap [Member]
Interest rate cap derivative	1,152
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | US Treasury Securities [Member]
Available for sale, fair value	0	0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member]
Available for sale, fair value	6,041	15,458
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Collateralized Mortgage Backed Securities [Member]
Available for sale, fair value	425,161	495,109
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]
Available for sale, fair value	21,634	38,115
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Corporate Debt Securities [Member]
Available for sale, fair value	363,638	323,649
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member]
Available for sale, fair value	16,992
Total assets at fair value	16,992	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Interest Rate Swap [Member]
Interest rate cap derivative	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | US Treasury Securities [Member]
Available for sale, fair value	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member]
Available for sale, fair value	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Collateralized Mortgage Backed Securities [Member]
Available for sale, fair value	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]
Available for sale, fair value	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Corporate Debt Securities [Member]
Available for sale, fair value	$ 16,992	$ 0

Note 21 - Fair Value Measurem_5

Note 21 - Fair Value Measurement - Carrying Amount and Estimated Fair Value of Financial Instruments (Details) - Fair Value, Nonrecurring [Member] - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Loans individually evaluated	$ 73,173	$ 80,817
Other real estate owned and repossessed assets	1,208	6,497
Total assets at fair value	74,381	87,314
Fair Value, Inputs, Level 1 [Member]
Loans individually evaluated	0	0
Other real estate owned and repossessed assets	0	0
Total assets at fair value	0	0
Fair Value, Inputs, Level 2 [Member]
Loans individually evaluated	0	0
Other real estate owned and repossessed assets	0	0
Total assets at fair value	0	0
Fair Value, Inputs, Level 3 [Member]
Loans individually evaluated	73,173	80,817
Other real estate owned and repossessed assets	1,208	6,497
Total assets at fair value	$ 74,381	$ 87,314

Note 21 - Fair Value Measurem_6

Note 21 - Fair Value Measurement - Level 3 of Valuation Hierarchy Measured at Fair Value (Details) - Debt Security, Corporate, US [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Fair value, beginning of period	$ 0	$ 6,596
Transfers into Level 3	6,000	0
Total realized gains included in income	0	0
Changes in unrealized gains/losses included in other comprehensive income for assets and liabilities still held at period-end	492	(15)
Purchases	18,000	0
Transfers out of Level 3	(7,500)	(6,581)
Fair value, end of period	$ 16,992	$ 0

Note 21 - Fair Value Measurem_7

Note 21 - Fair Value Measurement - Financial Assets and Liabilities Carried at Fair Value on Recurring Basis or Nonrecurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Cash and cash equivalents	$ 56,934	$ 93,655
Federal funds sold	58,372	1,771
Held to maturity debt securities, fair value	466,286	250
Mortgage loans held for sale	1,114	14,425
Net Loans	9,416,274	8,377,746
Federal funds purchased	1,711,777	851,545
Fair Value, Inputs, Level 1 [Member] | Reported Value Measurement [Member]
Cash and cash equivalents	4,163,724	2,209,640
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value Measurement [Member]
Cash and cash equivalents	4,163,724	2,209,640
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member]
Federal funds sold	58,372	1,771
Held to maturity debt securities, fair value	462,707	0
Mortgage loans held for sale	1,114	14,425
Deposits	12,452,836	9,975,724
Federal funds purchased	1,711,777	851,545
Other borrowings	64,706	64,748
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member]
Federal funds sold	58,372	1,771
Held to maturity debt securities, fair value	466,036	0
Mortgage loans held for sale	1,111	14,497
Deposits	12,454,140	9,987,665
Federal funds purchased	1,711,777	851,545
Other borrowings	65,476	65,560
Fair Value, Inputs, Level 3 [Member] | Reported Value Measurement [Member]
Held to maturity debt securities, fair value	250	250
Net Loans	9,416,274	8,377,746
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Held to maturity debt securities, fair value	250	250
Net Loans	$ 9,403,012	$ 8,387,718

Note 22 - Parent Company Fina_3

Note 22 - Parent Company Financial Information - Condensed Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash and due from banks	$ 56,934	$ 93,655
Other assets	65,661	22,460
Total assets	15,448,806	11,932,654
Other borrowings	64,706	64,748
Other liabilities	53,853	35,464
Total liabilities	14,296,791	10,939,802
Preferred stock, par value $0.001 per share; 1,000,000 authorized and undesignated at December 31, 2021 and December 31, 2020	0	0
Common stock, par value $0.001 per share; 100,000,000 shares authorized; 54,227,060 shares issued and outstanding at December 31, 2021 and 53,943,751 shares issued and outstanding at December 31, 2020	54	54
Additional paid-in capital	226,397	223,856
Retained earnings	911,008	748,224
Accumulated other comprehensive income	14,056	20,218
Total stockholders' equity	1,152,015	992,852	$ 842,682	$ 715,203
Total liabilities and stockholders' equity	15,448,806	11,932,654
Parent Company [Member]
Cash and due from banks	14,553	14,685
Investment in subsidiary	1,212,850	1,052,083
Other assets	1,291	1,119
Total assets	1,228,694	1,067,887
Other borrowings	64,706	64,748
Other liabilities	12,473	10,787
Total liabilities	77,179	75,535
Preferred stock, par value $0.001 per share; 1,000,000 authorized and undesignated at December 31, 2021 and December 31, 2020	0	0
Common stock, par value $0.001 per share; 100,000,000 shares authorized; 54,227,060 shares issued and outstanding at December 31, 2021 and 53,943,751 shares issued and outstanding at December 31, 2020	54	54
Additional paid-in capital	226,397	223,856
Retained earnings	911,008	748,224
Accumulated other comprehensive income	14,056	20,218
Total stockholders' equity	1,151,515	992,352
Total liabilities and stockholders' equity	$ 1,228,694	$ 1,067,887

Note 22 - Parent Company Fina_4

Note 22 - Parent Company Financial Information - Condensed Balance Sheets (Details) (Parentheticals) - $ / shares	Dec. 31, 2021	Dec. 31, 2020
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares undesignated (in shares)	1,000,000	1,000,000
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	54,227,060	53,943,751
Common stock, shares outstanding (in shares)	54,227,060	53,943,751
Parent Company [Member]
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares undesignated (in shares)	1,000,000	1,000,000
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	54,227,060	53,943,751
Common stock, shares outstanding (in shares)	54,227,060	53,943,751

Note 22 - Parent Company Fina_5

Note 22 - Parent Company Financial Information - Condensed Statements of Income (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net income									$ 207,734	$ 169,569	$ 149,243
Net income available to common stockholders	$ 53,722	$ 52,499	$ 49,996	$ 51,455	$ 50,949	$ 43,362	$ 40,417	$ 34,778	207,672	169,506	149,180
Parent Company [Member]
Dividends received from subsidiary									46,000	45,000	37,000
Total income									46,000	45,000	37,000
Other expenses									2,715	2,936	2,930
Total expenses									2,715	2,936	2,930
Equity in undistributed earnings of subsidiary									164,387	127,442	115,110
Net income									207,672	169,506	149,180
Net income available to common stockholders									$ 207,672	$ 169,506	$ 149,180

Note 22 - Parent Company Fina_6

Note 22 - Parent Company Financial Information - Statements of Cash Flow (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net income	$ 207,734	$ 169,569	$ 149,243
Net cash provided by operating activities	266,331	191,290	164,275
Net cash used in investing activities	(1,561,094)	(1,411,071)	(988,349)
Redemption of subordinated notes	0	(34,710)	0
Net cash used in financing activities	3,305,448	2,800,592	772,779
Net change in cash and cash equivalents	(132)	4,614	1,037
Parent Company [Member]
Net income	207,672	169,506	149,180
Other	(93)	204	38
Equity in undistributed earnings of subsidiary	(164,387)	(127,442)	(115,110)
Net cash provided by operating activities	43,192	42,268	34,108
Other	(120)	0	(1,000)
Net cash used in investing activities	(120)	0	(1,000)
Proceeds from issuance of subordinated notes	0	34,710	0
Redemption of subordinated notes	0	(34,750)	0
Dividends paid on common stock	(43,204)	(37,614)	(32,071)
Net cash used in financing activities	(43,204)	(37,654)	(32,071)
Cash and cash equivalents at beginning of year	14,685	10,071	9,034
Cash and cash equivalents at end of year	$ 14,553	$ 14,685	$ 10,071

Note 23 - Quarterly Financial_3

Note 23 - Quarterly Financial Data (Unaudited) - Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended																12 Months Ended
	Dec. 31, 2021		Sep. 30, 2021		Jun. 30, 2021		Mar. 31, 2021		Dec. 31, 2020		Sep. 30, 2020		Jun. 30, 2020		Mar. 31, 2020		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Interest income	$ 108,954		$ 104,236		$ 102,719		$ 100,396		$ 101,065		$ 96,110		$ 95,080		$ 96,767		$ 416,305	$ 389,022	$ 390,803
Interest expense	7,804		7,916		8,051		8,031		8,984		11,028		11,846		19,127		31,802	50,985	103,158
Net interest income	101,150		96,320		94,668		92,365		92,081		85,082		83,234		77,640		384,503	338,037	287,645
Provision for credit losses	8,451	[1]	5,963	[1]	9,652	[1]	7,451	[1]	6,283	[1]	12,284	[1]	10,283	[1]	13,584	[1]	31,517	42,434	22,638
Net income available to common stockholders	$ 53,722		$ 52,499		$ 49,996		$ 51,455		$ 50,949		$ 43,362		$ 40,417		$ 34,778		$ 207,672	$ 169,506	$ 149,180
Net income per common share, basic (in dollars per share)	$ 0.99		$ 0.97		$ 0.92		$ 0.95		$ 0.94		$ 0.80		$ 0.75		$ 0.65		$ 3.83	$ 3.15	$ 2.79
Net income per common share, diluted (in dollars per share)	$ 0.99		$ 0.96		$ 0.92		$ 0.95		$ 0.94		$ 0.80		$ 0.75		$ 0.64		$ 3.82	$ 3.13	$ 2.76
[1]	The first three quarters of 2020 were estimated and recorded under the incurred loss methodology and not restated for the adoption of ASC 326. The Company elected to delay the adoption of CECL as allowed under the CARES Act.