Wilson Bank Holding (WBHC) 10-K 12 Mar 21 2019 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	Dec. 31, 2020	Mar. 12, 2021	Jun. 30, 2020
Document Information [Line Items]
Entity Registrant Name	WILSON BANK HOLDING COMPANY
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2019
Document, Type	10-K
Document, Annual Report	true
Document, Period End Date	Dec. 31, 2020
Document, Transition Report	false
Entity, File Number	0-20402
Entity, Incorporation, State or Country Code	TN
Entity, Tax Identification Number	62-1497076
Entity, Address, Address Line One	623 West Main Street
Entity, Address, City or Town	Lebanon
Entity, Address, State or Province	TN
Entity, Address, Postal Zip Code	37087
City Area Code	615
Local Phone Number	444-2265
Title of 12(g) Security	Common Stock, $2.00 par value per share
No Trading Symbol Flag	true
Entity, Well-known Seasoned Issuer	No
Entity, Voluntary Filers	No
Entity, Current Reporting Status	Yes
Entity, Interactive Data, Current	Yes
Entity, Filer Category	Accelerated Filer
Entity, Small Business	false
Entity, Emerging Growth Company	false
Entity, Shell Company	false
Entity, Public Float			$ 588,929,083
Entity, Common Stock Shares, Outstanding		11,080,433
Documents Incorporated By Reference Text Block	Part of Form 10-K    Documents from which portions are incorporated by reference Part II    Portions of the Registrant’s Annual Report to Shareholders for the fiscal year ended December 31, 2020 are incorporated by reference into Items 1, 5, 6, 7, 7A and 8.     Part III    Portions of the Registrant’s Proxy Statement to be filed relating to the Registrant’s Annual Meeting of Shareholders to be held on April 27, 2021 are incorporated by reference into Items 10, 11, 12, 13 and 14.
Amendment Flag	false
Entity Central Index Key	0000885275

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($)	Dec. 31, 2020	Dec. 31, 2019
ASSETS
Loans, net of allowance for loan losses of $38,539 and $28,726, respectively	$ 2,282,766,000	$ 2,057,175,000
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	580,543,000	421,145,000
Loans held for sale	19,474,000	18,179,000
Interest bearing deposits	304,750,000	126,827,000
Federal funds sold	675,000	20,000,000
Restricted equity securities, at cost	5,089,000	4,680,000
Total earning assets	3,193,297,000	2,648,006,000
Cash and due from banks	33,431,000	12,943,000
Premises and equipment, net	58,202,000	60,295,000
Accrued interest receivable	7,516,000	5,945,000
Deferred income taxes	7,089,000	6,136,000
Other real estate	0	697,000
Bank owned life insurance	35,197,000	31,762,000
Goodwill	4,805,000	4,805,000
Other assets	30,067,000	23,620,000
Total assets	3,369,604,000	2,794,209,000
LIABILITIES AND STOCKHOLDERS’ EQUITY
Deposits	2,960,595,000	2,417,605,000
Federal Home Loan Bank advances	3,638,000	23,613,000
Accrued interest and other liabilities	25,250,000	16,007,000
Total liabilities	2,989,483,000	2,457,225,000
Stockholders’ equity:
Common stock, par value $2.00 per share, authorized 50,000,000 shares, 10,993,404 and 10,792,999 shares issued and outstanding, respectively	21,987,000	21,586,000
Additional paid-in capital	93,034,000	82,249,000
Retained earnings	257,935,000	232,456,000
Net unrealized gains on available-for-sale securities, net of taxes of $2,536 and $245, respectively	7,165,000	693,000
Total stockholders’ equity	380,121,000	336,984,000
COMMITMENTS AND CONTINGENCIES
Total liabilities and stockholders’ equity	$ 3,369,604,000	$ 2,794,209,000

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Loans, allowance for loan losses	$ 38,539	$ 28,726	$ 27,174
Available-for-sale, amortized cost	$ 570,842	$ 420,207
Common stock, par value (in dollars per share)	$ 2	$ 2
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	10,993,404	10,792,999
Common stock, shares outstanding (in shares)	10,993,404	10,792,999
Net unrealized losses on available-for-sale securities, income taxes	$ 2,536	$ 245

Consolidated Statements of Earn

Consolidated Statements of Earnings - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Interest income:
Interest and fees on loans	$ 113,224,000	$ 105,783,000	$ 94,917,000
Interest and dividends on securities:
Taxable securities	7,272,000	8,559,000	6,158,000
Exempt from Federal income taxes	1,102,000	773,000	1,020,000
Interest on loans held for sale	616,000	325,000	184,000
Interest on Federal funds sold	56,000	275,000	83,000
Interest on interest bearing deposits	582,000	2,164,000	979,000
Interest and dividends on restricted equity securities	116,000	198,000	184,000
Total interest income	122,968,000	118,077,000	103,525,000
Interest expense:
Interest on negotiable order of withdrawal accounts	1,314,000	2,311,000	1,823,000
Interest on money market accounts and other savings accounts	4,163,000	6,855,000	4,231,000
Interest on certificates of deposit and individual retirement accounts	10,939,000	12,896,000	7,944,000
Interest on securities sold under repurchase agreements	0	0	16,000
Interest on Federal funds purchased	0	4,000	4,000
Interest on Federal Home Loan Bank advances	967,000	581,000	0
Total interest expense	17,383,000	22,647,000	14,018,000
Net interest income before provision for loan losses	105,585,000	95,430,000	89,507,000
Provision for loan losses	9,696,000	2,040,000	4,298,000
Net interest income after provision for loan losses	95,889,000	93,390,000	85,209,000
Non-interest income	33,140,000	28,349,000	25,248,000
Non-interest expense	80,919,000	74,628,000	69,080,000
Earnings before income taxes	48,110,000	47,111,000	41,377,000
Income taxes	9,618,000	11,067,000	8,783,000
Net earnings	$ 38,492,000	$ 36,044,000	$ 32,594,000
Basic earnings per common share (in dollars per share)	$ 3.52	$ 3.36	$ 3.09
Diluted earnings per common share (in dollars per share)	$ 3.51	$ 3.35	$ 3.08
Weighted average common shares outstanding:
Basic (in shares)	10,927,065	10,743,269	10,564,172
Diluted (in shares)	10,953,746	10,761,467	10,572,221

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Earnings - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net earnings	$ 38,492	$ 36,044	$ 32,594
Other comprehensive earnings (losses), net of tax:
Net unrealized gains (losses) on available-for-sale securities arising during period, net of taxes of $2,522, $2,901, and $1,398, respectively	7,123	8,200	(3,950)
Reclassification adjustment for net losses (gains) included in net earnings, net of taxes of $231, $70, and $170, respectively	(651)	198	480
Other comprehensive earnings (losses)	6,472	8,398	(3,470)
Comprehensive earnings	$ 44,964	$ 44,442	$ 29,124

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Earnings (Parentheticals) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net unrealized gains (losses) on available-for-sale securities arising during period, taxes	$ 2,522,000	$ 2,901,000	$ 1,398,000
Reclassification adjustment for net losses on the sale of securities included in net earnings, taxes	$ 231,000	$ 70,000	$ 170,000

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Cumulative Effect, Period of Adoption, Adjustment [Member]Common Stock Outstanding [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, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock Outstanding [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]	Total
Balance at Dec. 31, 2017						$ 20,901	$ 66,047	$ 185,017	$ (4,235)	$ 267,730
Cash dividends declared						0	0	(9,447)	0	(9,447)
Issuance of shares of common stock pursuant to dividend reinvestment plan						324	7,146	0	0	7,470
Issuance of shares of common stock pursuant to exercise of stock options						23	371	0	0	394
Share based compensation expense						0	396	0	0	396
Net change in fair value of available-for-sale securities during the year, net of taxes						0	0	0	(3,470)	(3,470)
Net earnings for the year						0	0	32,594	0	32,594
Balance (Accounting Standards Update 2016-02 [Member]) at Dec. 31, 2018	$ 0	$ 0	$ (27)	$ 0	$ (27)
Balance at Dec. 31, 2018						21,248	73,960	208,164	(7,705)	295,667
Cash dividends declared						0	0	(11,725)	0	(11,725)
Issuance of shares of common stock pursuant to dividend reinvestment plan						358	8,776	0	0	9,134
Issuance of shares of common stock pursuant to exercise of stock options						44	731	0	0	775
Share based compensation expense						0	347	0	0	347
Net change in fair value of available-for-sale securities during the year, net of taxes						0	0	0	8,398	8,398
Net earnings for the year						0	0	36,044	0	36,044
Repurchase of common shares						(64)	(1,565)	0	0	(1,629)
Balance at Dec. 31, 2019						21,586	82,249	232,456	693	336,984
Cash dividends declared						0	0	(13,013)	0	(13,013)
Issuance of shares of common stock pursuant to dividend reinvestment plan						361	9,695	0	0	10,056
Issuance of shares of common stock pursuant to exercise of stock options						40	678	0	0	718
Share based compensation expense						0	412	0	0	412
Net change in fair value of available-for-sale securities during the year, net of taxes						0	0	0	6,472	6,472
Net earnings for the year						0	0	38,492	0	38,492
Balance at Dec. 31, 2020						$ 21,987	$ 93,034	$ 257,935	$ 7,165	$ 380,121

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Stockholders' Equity (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash dividends declared, per share (in dollars per share)	$ 1.20	$ 1.10	$ 0.90
Issuance of shares of common stock pursuant to dividend reinvestment plan, shares (in shares)	180,424	179,199	161,514
Issuance of shares of common stock, shares (in shares)	19,981	21,764	11,585
Net change in fair value of available-for-sale securities during the period, taxes	$ 2,291	$ 2,971	$ 1,228
Repurchase of common shares (in shares)		31,774

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities:
Interest received	$ 126,194	$ 121,366	$ 105,318
Fees and other income received	21,284	21,185	20,503
Proceeds from sales of loans	221,748	157,028	131,321
Origination of loans held for sale	(213,483)	(160,921)	(129,060)
Interest paid	(18,146)	(21,966)	(12,565)
Cash paid to suppliers and employees	(75,082)	(69,412)	(64,351)
Income taxes paid	(12,106)	(10,934)	(10,558)
Net cash provided by operating activities	50,409	36,346	40,608
Cash flows from investing activities:
Purchase of available-for-sale securities	(409,996)	(255,432)	(9,118)
Proceeds from calls, maturities and paydowns of available-for-sale securities	200,785	90,805	36,955
Proceeds from sale of available-for-sale securities	54,870	37,325	35,093
Purchase of restricted equity securities	(409)	(1,668)	0
Proceeds from maturities and paydowns of held-to-maturity securities	0	0	4,651
Proceeds from sale of held-to-maturity securities	0	0	4,764
Loans made to customers, net of repayments	(236,402)	(43,568)	(293,655)
Purchase of bank owned life insurance and annuity contracts	(6,867)	0	(4,301)
Purchase of premises and equipment	(2,220)	(6,044)	(7,752)
Proceeds from sale of other assets	9	14	4
Proceeds from sale of other real estate	2,307	952	796
Net cash used in investing activities	(397,923)	(177,616)	(232,563)
Cash flows from financing activities:
Net increase in non-interest bearing, savings, NOW and money market deposit accounts	563,605	163,720	101,248
Net increase (decrease) in time deposits	(20,615)	18,230	96,662
Net decrease in securities sold under agreements to repurchase	0	0	(864)
Net increase (decrease) in Federal Home Loan Bank advances	(19,975)	23,613	0
Escrow payable, net	5,824	(269)	165
Common stock dividends paid	(13,013)	(11,725)	(9,447)
Proceeds from sale of common stock pursuant to dividend reinvestment	10,056	9,134	7,470
Proceeds from sale of common stock pursuant to exercise of stock options	718	775	394
Repurchase of common stock	0	(1,629)	0
Net cash provided by financing activities	526,600	201,849	195,628
Net increase in cash and cash equivalents	179,086	60,579	3,673
Cash and cash equivalents at beginning of year	159,770	99,191	95,518
Cash and cash equivalents at end of year	338,856	159,770	99,191
Reconciliation of net earnings to net cash provided by operating activities:
Net earnings	38,492	36,044	32,594
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation, amortization and accretion	8,838	6,494	5,853
Provision for loan losses	9,696	2,040	4,298
Equity-based compensation expense	1,180	786	1,237
Provision for deferred tax benefit	(3,304)	(478)	(248)
Loss (gain) on sales of other real estate, net	(658)	48	80
Loss on sales of other assets	4	4	3
Loss on sales of premises and equipment	63	128	2
Security loss (gain)	(882)	268	650
Increase in derivative liability, net	209	0	0
Increase in loans held for sale	(1,295)	(10,695)	(2,378)
Increase (decrease) in taxes payable	756	339	(1,526)
Increase in other assets, bank owned life insurance and annuity contract earnings	(3,023)	(194)	(1,684)
Decrease (increase) in accrued interest receivable	(1,571)	779	(458)
Increase (decrease) in interest payable	(763)	682	1,453
Increase in other liabilities	2,667	101	732
Total adjustments	11,917	302	8,014
Net cash provided by operating activities	50,409	36,346	40,608
Supplemental Schedule of Non-Cash Activities:
Change in fair value of securities available-for-sale, net of taxes of $2,291 in 2020, $2,971 in 2019, and $1,228 in 2018	6,472	8,398	(3,470)
Non-cash transfers from held-to-maturity to available-for-sale securities	0	0	22,800
Non-cash transfers from loans to other real estate	992	884	693
Non-cash transfers from other real estate to loans	40	544	95
Non-cash transfers from loans to other assets	$ 5	$ 18	$ 7

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Unrealized gain in value of securities available-for-sale, taxes	$ 2,291	$ 2,971	$ 1,228

Note 1 - Summary of Significant

Note 1 - Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Significant Accounting Policies [Text Block]	( 1 Summary of Significant Accounting Policies The accounting and reporting policies of Wilson Bank Holding Company (“the Company”) and Wilson Bank & Trust (“Wilson Bank” or "the Bank") are in accordance with accounting principles generally accepted in the United States of America (“U.S.”) and conform to general practices within the banking industry. The following is a brief summary of the significant policies. (a) Principles of Consolidation The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary Wilson Bank. All significant intercompany accounts and transactions have been eliminated in consolidation. (b) Nature of Operations Wilson Bank operates under a state bank charter and provides full banking services. As a state-chartered bank that is not twenty-seven (c) Estimates In preparing consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”), management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses, the valuation of deferred tax assets and other real estate, other-than-temporary impairments of securities, and the fair value of financial instruments. (d) Significant Group Concentrations of Credit Risk Most of the Company’s activities are with customers located within Middle Tennessee. The types of securities in which the Company invests are described in note 3. 2. not one 2. Residential 1 4 d 23%, 36% and 21% and 24%, 38% and 20% of the December 31, 2020 2019 (e) Loans The Company grants mortgage, commercial and consumer loans to customers. A substantial portion of the loan portfolio is represented by mortgage loans throughout Middle Tennessee. The ability of the Company’s debtors to honor their contracts is dependent upon the real estate and general economic conditions in this area. Loans that management has the intent and ability to hold for the foreseeable future or until maturity or pay-off generally are reported at their outstanding unpaid principal balances adjusted for unearned income, the allowance for loan losses, and any unamortized deferred fees or costs on originated loans, and premiums or discounts on purchased loans. Loan origination fees, net of certain direct origination costs, as well as premiums and discounts, are deferred and amortized on a straight line basis over the respective term of the loan. As part of its routine credit monitoring process, the Company performs regular credit reviews of the loan portfolio and loans receive risk ratings by the assigned credit officer, which are subject to validation by the Company's independent loan review department. Risk ratings are categorized as pass, special mention, substandard or doubtful. The Company believes that its categories follow those outlined by the FDIC, Wilson Bank's primary federal regulator. Generally the accrual of interest on mortgage and commercial loans is discontinued at the time the loan is 90 no 180 All interest accrued but not (f) Allowance for Loan Losses Management provides for loan losses by establishing an allowance. The allowance for loan losses is established as losses are estimated to have occurred through a provision for loan losses charged to earnings. Loan losses are charged against the allowance when management believes the uncollectability of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance. The allowance for loan losses is evaluated on a quarterly basis by management and is based upon management’s quarterly review of the collectability of the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may In assessing the adequacy of the allowance, we also consider the results of our ongoing independent loan review process. We undertake this process both to ascertain whether there are loans in the portfolio whose credit quality has weakened over time and to assist in our overall evaluation of the risk characteristics of the entire loan portfolio. Our loan review process includes the judgment of management, independent loan reviewers, and reviews that may third may In addition to the independent loan review process, the aforementioned risk ratings are subject to continual review by loan officers to determine that the appropriate risk ratings are being utilized in our allowance for loan loss process. Each risk rating is also subject to review by our independent loan review department. Currently, our independent loan review department targets reviews of 100% of existing loan relationships with aggregate debt of $2.0 million and greater and new loans with aggregate debt of $500,000 and greater. In addition, our independent loan review department targets particular portfolio segments, loans assigned to a particular lending officer, past due loans, and loans with four The allowance consists of allocated and general components. The allocated component relates to loans that are classified as impaired. For those loans that are individually classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The general component covers nonclassified loans and is based on historical charge-off experience, historical loan loss factors, loss experience of various loan segments, and other adjustments based on management’s assessment of internal or external influences on credit quality that are not A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not Large groups of smaller balance homogeneous loans are collectively evaluated for impairment. Accordingly, the Company does not (g) Debt and Equity Securities Certain debt securities that management has the positive intent and ability to hold to maturity are classified as “held-to-maturity” and recorded at amortized cost. Trading securities are recorded at fair value with changes in fair value included in earnings. Securities not may Other-than-temporary Impairment 1 2 3 no not not” not No December 31, 2020 2019 (h) Federal Home Loan Bank Stock The Company, as a member of the Federal Home Loan Bank (“FHLB”) Cincinnati system, is required to maintain an investment in capital stock of the FHLB. Based on redemption provisions of the FHLB, the stock has no December 31, 2020 $4.4 million. (i) Loans Held for Sale Mortgage loans held for sale are carried at fair value. The fair value of loans held for sale is determined using quoted prices for similar assets, adjusted for specific attributes of that loan. (j) Premises and Equipment Premises and equipment are stated at cost. Depreciation is computed primarily by the straight-line method over the estimated useful lives of the related assets. Gains or losses realized on items retired and otherwise disposed of are credited or charged to operations and cost and related accumulated depreciation are removed from the asset and accumulated depreciation accounts. Expenditures for major renovations and improvements of premises and equipment are capitalized and those for maintenance and repairs are charged to earnings as incurred. (k) Other Real Estate Assets acquired through, or in lieu of, loan foreclosure are held for sale and are initially recorded at fair value less the estimated cost to sell at the date the Company acquires the property, establishing a new cost basis. Subsequent to their acquisition by the Company, valuations of these assets are periodically performed by management, and the assets are carried at the lower of carrying amount or fair value less cost to sell. Revenue and expenses from operations and changes in the valuation allowance [i.e. any direct write-downs] (l) Goodwill and Intangible Assets The Financial Accounting Standards Board “FASB” Accounting Standards Codification “ASC” 350, Goodwill and Other Intangible Assets 350, not no December 31, 2020 December 31, 2019 (m) Cash and Cash Equivalents For purposes of reporting cash flows, cash and cash equivalents include cash on hand, interest-bearing deposits, amounts due from banks and Federal funds sold. Generally, Federal funds sold are purchased and sold for one (n) Long-Term Assets Premises and equipment, intangible assets, and other long-term assets are reviewed for impairment when events indicate their carrying amount may not (o) Securities Sold Under Agreements to Repurchase Substantially all repurchase agreement liabilities represent amounts advanced by various customers. Securities are pledged to cover these liabilities, which are not (p) Income Taxes The Company accounts for Income Taxes in accordance with income tax accounting guidance (FASB ASC 740, Income Taxes The income tax accounting guidance results in two Deferred income tax expense results from changes in deferred tax assets and liabilities between periods. Deferred tax assets are recognized if it is more likely than not, not" 50 not 50 not not not not The Company recognizes interest and penalties on income taxes as a component of income tax expense. (q) Derivatives Mortgage Banking Derivatives Commitments to fund mortgage loans (interest rate locks) to be sold into the secondary market and forward commitments for the future delivery of these mortgage loans are accounted for as free standing derivatives. The fair value of the interest rate lock is recorded at the time the commitment to fund the mortgage loan is executed and is adjusted for the expected exercise of the commitment before the loan is funded. Fair values of these mortgage derivatives are estimated based on changes in mortgage interest rates from the date the interest rate on the loan is locked. The Company enters into forward commitments for the future delivery of mortgage loans when interest rate locks are entered into, in order to hedge the change in interest rates resulting from its commitments to fund the loans. Changes in the fair values of these derivatives are included in net gains on sale of mortgage loans. Fair Value Hedges For derivative instruments that are designated and qualify as a fair value hedge, the gain or loss on the derivative instrument as well as the offsetting loss or gain on the hedged asset or liability attributable to the hedged risk are recognized in current earnings. The gain or loss on the derivative instrument is presented on the same income statement line item as the earnings effect of the hedged item. The Company utilizes interest rate swaps designated as fair value hedges to mitigate the effect of changing interest rates on the fair values of fixed rate loans. The hedging strategy on loans converts the fixed interest rates to LIBOR-based variable interest rates. These derivatives are designated as partial term hedges of selected cash flows covering specified periods of time prior to the maturity dates of the hedged loans. (r) Equity-Based Incentives Stock compensation accounting guidance (FASB ASC 718, Compensation—Stock Compensation” not not The stock compensation accounting guidance requires that compensation cost for all stock awards be calculated and recognized over the employees’ service period, generally defined as the vesting period. For awards with graded-vesting, compensation cost is recognized on a straight-line basis over the requisite service period for the entire award. The Company uses the Black-Scholes option pricing model to estimate the fair value of stock options and cash-settled SARs. (s) Advertising Costs Advertising costs are expensed as incurred by the Company and totaled $2,487,000 , $2,498,000 and $2,552,000 f 2020, 2019 2018 (t) Earnings Per Share Basic earnings per share represents income available to common stockholders divided by the weighted-average number of common shares outstanding during the period. Diluted earnings per share reflects additional potential common shares that would have been outstanding if dilutive potential common shares had been issued, as well as any adjustment to income that would result from the assumed issuance. Potential common shares that may (u) 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 22 (v) Reclassification Certain reclassifications have been made to the 2019 2018 2020 (w) Off-Balance-Sheet Financial Instruments In the ordinary course of business, Wilson Bank has entered into off-balance-sheet financial instruments consisting of commitments to extend credit, commitments under credit card arrangements, commercial letters of credit and standby letters of credit. Such financial instruments are recorded in the financial statements when they are funded or related fees are incurred or received. ( x Accounting Standard Updates ASU 2016 13, 326 2016 13 2016 13 2016 13 January 1, 2020. March 27, 2020, 2016 13, 60 19 December 31, 2020, December 27, 2020, 2016 13, January 1, 2022. January 1, 2022. 2016 13 January 1, 2020. December 31, 2020, 2016 13 December 31, 2020. third 2016 13 2016 13 not March 27, 2020 three three 75% 50% 25% not 2016 13 not ASU 2017 04, 350 2017 04 2 2017 04, not 2017 04 January 1, 2020, not ASU 2018 13, 820 2018 13 820. no 2018 13 January 1, 2020 not ASU 2020 4, 848 2020 4 2020 04 not December 31, 2022, December 31, 2022, 2020 4 December 31, 2022. 2020 4 not Other than those previously discussed, there were no

Note 2 - Loans and Allowance fo

Note 2 - Loans and Allowance for Loan Losses	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	( 2 Loans and Allowance for Loan Losses The classification of loans at December 31, 2020 2019 In Thousands 2020 2019 Mortgage loans on real estate: Residential 1-4 family $ 535,994 511,250 Multifamily 111,646 97,104 Commercial 837,766 793,379 Construction 488,626 425,185 Farmland 15,429 19,268 Second mortgages 8,433 10,760 Equity lines of credit 78,889 72,379 Total mortgage loans on real estate 2,076,783 1,929,325 Commercial loans 172,811 98,265 Agricultural loans 1,206 1,569 Consumer installment loans: Personal 66,193 50,532 Credit cards 4,324 4,302 Total consumer installment loans 70,517 54,834 Other loans 9,283 9,049 2,330,600 2,093,042 Net deferred loan fees (9,295 ) (7,141 ) Total loans 2,321,305 2,085,901 Less: Allowance for loan losses (38,539 ) (28,726 ) Loans, net $ 2,282,766 2,057,175 At December 31, 2020 December 31, 2019 Risk characteristics relevant to each portfolio segment are as follows: Construction and land development: may may may 1 4 1 4 first second 1 4 first second second 1 4 Multi-family and commercial real estate: Commercial real estate lending typically involves higher loan principal amounts and the repayment of these loans is generally largely dependent on the successful operation of the property securing the loan or the business conducted on the property securing the loan. Commercial real estate loans may third 50 third Commercial and industrial: December 31, 2020. may not may may may Consumer: may one five may The following tables present the Company’s nonaccrual loans, credit quality indicators and past due loans as of December 31, 2020 2019 Loans on Nonaccrual Status In Thousands 2020 2019 Residential 1-4 family $ 1,022 949 Multifamily — — Commercial real estate 311 1,661 Construction — — Farmland — — Second mortgages — — Equity lines of credit — — Commercial — — Agricultural, installment and other — — Total $ 1,333 2,610 At December 31, 2020 two impaired loans tot December 31, 2019 three The impact on net interest income for these loans was not December 31, 2020 2019 2018 Potential problem loans, which include nonperforming loans, amounted to approximatel y million December 31, 2020 million December 31, 2019 The following table presents our loan balances by primary loan classification and the amount classified within each risk rating category. Pass rated loans include all credits other than those included in special mention, substandard and doubtful which are defined as follows: • Special mention loans have potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may • Substandard loans are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Assets so classified must have a well-defined weakness or weaknesses that jeopardize liquidation of the debt. Substandard loans are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not • Doubtful loans have all the characteristics of substandard loans with the added characteristics that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. The Company considers all doubtful loans to be impaired and places the loans on nonaccrual status. Credit Quality Indicators The following table presents loan balances classified within each risk rating category by primary loan type as of December 31, 2020 December 31, 2019 In Thousands Agricultural, Residential 1-4 Commercial Second Equity Lines Installment and Family Multifamily Real Estate Construction Farmland Mortgages of Credit Commercial Other Total Credit Risk Profile by Internally Assigned Grade December 31, 2020 Pass $ 529,546 111,646 837,028 488,571 15,301 8,148 78,565 172,779 80,770 2,322,354 Special mention 2,745 — 149 27 79 169 314 — 156 3,639 Substandard 3,703 — 589 28 49 116 10 32 80 4,607 Total $ 535,994 111,646 837,766 488,626 15,429 8,433 78,889 172,811 81,006 2,330,600 December 31, 2019 Pass $ 503,861 97,104 791,610 424,517 19,106 10,458 72,237 98,243 65,255 2,082,391 Special mention 2,923 — — 635 103 174 — — 101 3,936 Substandard 4,466 — 1,769 33 59 128 142 22 96 6,715 Total $ 511,250 97,104 793,379 425,185 19,268 10,760 72,379 98,265 65,452 2,093,042 Age Analysis of Past Due Loans In Thousands 30-59 Days Past Due 60-89 Days Past Due Nonaccrual and Greater Than 90 Days Total Nonaccrual and Past Due Current Total Loans Recorded Investment Greater Than 90 Days and Accruing December 31, 2020 Residential 1-4 family $ 2,634 511 1,818 4,963 531,031 535,994 $ 796 Multifamily — — — — 111,646 111,646 — Commercial real estate — — 460 460 837,306 837,766 149 Construction 768 — 44 812 487,814 488,626 44 Farmland — — — — 15,429 15,429 — Second mortgages 265 — — 265 8,168 8,433 — Equity lines of credit 31 302 — 333 78,556 78,889 — Commercial 114 104 — 218 172,593 172,811 — Agricultural, installment and other 363 81 60 504 80,502 81,006 60 Total $ 4,175 998 2,382 7,555 2,323,045 2,330,600 $ 1,049 December 31, 2019 Residential 1-4 family $ 4,760 799 2,336 7,895 503,355 511,250 $ 1,387 Multifamily — — — — 97,104 97,104 — Commercial real estate 500 — 1,661 2,161 791,218 793,379 — Construction 1,535 147 594 2,276 422,909 425,185 594 Farmland 57 — 8 65 19,203 19,268 8 Second mortgages — — 100 100 10,660 10,760 100 Equity lines of credit 143 — 372 515 71,864 72,379 372 Commercial 71 30 — 101 98,164 98,265 — Agricultural, installment and other 517 116 46 679 64,773 65,452 46 Total $ 7,583 1,092 5,117 13,792 2,079,250 2,093,042 $ 2,507 Transactions in the allowance for loan losses for the years ended December 31, 2020 2019 In Thousands Agricultural, Residential 1-4 Commercial Second Equity Lines Installment and Family Multifamily Real Estate Construction Farmland Mortgages of Credit Commercial Other Total December 31, 2020 Allowance for loan losses: Beginning balance $ 7,144 1,117 11,114 5,997 187 123 889 1,044 1,111 28,726 Provision 920 424 5,388 1,766 (33 ) (37 ) 74 343 851 9,696 Charge-offs — — — — — — (7 ) (9 ) (898 ) (914 ) Recoveries 34 — 300 173 — 19 41 — 464 1,031 Ending balance $ 8,098 1,541 16,802 7,936 154 105 997 1,378 1,528 38,539 Ending balance individually evaluated for impairment $ 594 — 148 — — — — — — 742 Ending balance collectively evaluated for impairment $ 7,504 1,541 16,654 7,936 154 105 997 1,378 1,528 37,797 Loans: Ending balance $ 535,994 111,646 837,766 488,626 15,429 8,433 78,889 172,811 81,006 2,330,600 Ending balance individually evaluated for impairment $ 2,399 — 970 — — — — — — 3,369 Ending balance collectively evaluated for impairment $ 533,595 111,646 836,796 488,626 15,429 8,433 78,889 172,811 81,006 2,327,231 In Thousands Agricultural, Residential 1-4 Commercial Second Equity Lines Installment and Family Multifamily Real Estate Construction Farmland Mortgages of Credit Commercial Other Total December 31, 2019 Allowance for loan losses: Beginning balance $ 6,297 1,481 9,753 7,084 221 118 731 622 867 27,174 Provision 838 (364 ) 1,484 (1,510 ) (34 ) 5 158 422 1,041 2,040 Charge-offs (15 ) — (173 ) — — — — (15 ) (1,160 ) (1,363 ) Recoveries 24 — 50 423 — — — 15 363 875 Ending balance $ 7,144 1,117 11,114 5,997 187 123 889 1,044 1,111 28,726 Ending balance individually evaluated for impairment $ 795 — 341 — — — — — — 1,136 Ending balance collectively evaluated for impairment $ 6,349 1,117 10,773 5,997 187 123 889 1,044 1,111 27,590 Loans: Ending balance $ 511,250 97,104 793,379 425,185 19,268 10,760 72,379 98,265 65,452 2,093,042 Ending balance individually evaluated for impairment $ 2,569 — 2,471 — — — — — — 5,040 Ending balance collectively evaluated for impairment $ 508,681 97,104 790,908 425,185 19,268 10,760 72,379 98,265 65,452 2,088,002 The following tables present the Company’s impaired loans (including loans on nonaccrual status and loans past due 90 December 31, 2020 2019 In Thousands Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized December 31, 2020 With no related allowance recorded: Residential 1-4 family $ 1,162 1,507 — 395 26 Multifamily — — — — — Commercial real estate 311 311 — 311 — Construction — — — — — Farmland — — — — — Second mortgages — — — — — Equity lines of credit — — — — — Commercial — — — — — Agricultural, installment and other — — — — — $ 1,473 1,818 — 706 26 With allowance recorded: Residential 1-4 family $ 1,242 1,240 594 1,273 66 Multifamily — — — — — Commercial real estate 662 659 148 676 22 Construction — — — — — Farmland — — — — — Second mortgages — — — — — Equity lines of credit — — — — — Commercial — — — — — Agricultural, installment and other — — — — — $ 1,904 1,899 742 1,949 88 Total: Residential 1-4 family $ 2,404 2,747 594 1,668 92 Multifamily — — — — — Commercial real estate 973 970 148 987 22 Construction — — — — — Farmland — — — — — Second mortgages — — — — — Equity lines of credit — — — — — Commercial — — — — — Agricultural, installment and other — — — — — $ 3,377 3,717 742 2,655 114 In Thousands Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized December 31, 2019 With no related allowance recorded: Residential 1-4 family $ 1,090 1,464 — 1,090 99 Multifamily — — — — — Commercial real estate 951 1,124 — 910 17 Construction — — — — — Farmland — — — — — Second mortgages — — — — — Equity lines of credit — — — — — Commercial — — — — — Agricultural, installment and other — — — — — $ 2,041 2,588 — 2,000 116 With allowance recorded: Residential 1-4 family $ 1,489 1,480 795 1,590 83 Multifamily — — — — — Commercial real estate 1,522 1,520 341 2,015 17 Construction — — — — — Farmland — — — — — Second mortgages — — — — — Equity lines of credit — — — — — Commercial — — — — — Agricultural, installment and other — — — — — $ 3,011 3,000 1,136 3,605 100 Total: Residential 1-4 family $ 2,579 2,944 795 2,680 182 Multifamily — — — — — Commercial real estate 2,473 2,644 341 2,925 34 Construction — — — — — Farmland — — — — — Second mortgages — — — — — Equity lines of credit — — — — — Commercial — — — — — Agricultural, installment and other — — — — — $ 5,052 5,588 1,136 5,605 216 The Company’s loan portfolio includes certain loans that have been modified in a troubled debt restructuring (TDR), where economic or other concessions have been granted to borrowers who have experienced or are expected to experience financial difficulties. The concessions typically result from the Company’s loss mitigation activities and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance or other actions. Certain TDRs are classified as nonperforming at the time of restructure and may six The following table summarizes the carrying balances of TDRs at December 31, 2020 December 31, 2019 2020 2019 Performing TDRs $ 2,147 3,080 Nonperforming TDRs 529 1,467 Total TDRs $ 2,676 4,547 The following table outlines the amount of each TDR categorized by loan classification for the years ended December 31, 2020 2019 December 31, 2020 December 31, 2019 Number of Contracts Pre Modification Outstanding Recorded Investment Post Modification Outstanding Recorded Investment, Net of Related Allowance Number of Contracts Pre Modification Outstanding Recorded Investment Post Modification Outstanding Recorded Investment, Net of Related Allowance Residential 1-4 family — $ — $ — 1 $ 1,338 $ 619 Multifamily — — — — — — Commercial real estate 1 111 132 4 2,677 2,399 Construction — — — — — — Farmland — — — — — — Second mortgages — — — — — — Equity lines of credit — — — — — — Commercial — — — — — — Agricultural, installment and other — — — — — — Total 1 $ 111 $ 132 5 $ 4,015 $ 3,018 As of December 31, 2020 2019 not twelve In response to the COVID- 19 March 2020 90 90 six may not March 1, 2020 January 1, 2022 60 19 December 31, 2020 not none December 31, 2020 As of December 31, 2020 December 31, 2019 not The Company’s principal customers are primarily in the Middle Tennessee area with a concentration in Wilson County, Tennessee. Credit is extended to businesses and individuals and is evidenced by promissory notes. The terms and conditions of the loans including collateral vary depending upon the purpose of the credit and the borrower’s financial condition. In the normal course of business, Wilson Bank has made loans at prevailing interest rates and terms to directors and executive officers of the Company and to their affiliates. The aggregate amount of these loa ns was and at December 31, 2020 2019 None three December 31, 2020 An analysis of the activity with respect to such loans to related parties is as follows: In Thousands December 31, 2020 2019 Balance, January 1 $ 12,878 13,019 New loans and renewals during the year 11,153 31,548 Repayments (including loans paid by renewal) during the year (16,356 ) (31,689 ) Balance, December 31 $ 7,675 12,878 In 2020, 2019 2018 2020, 2019 2018 In some instances, Wilson Bank sells loans that contain provisions which permit the buyer to seek recourse against Wilson Bank in certain circumstances. At December 31, 2020 2019 nd $115,789,000, respectively. At December 31, 2020 , Wilson Bank has not no

Note 3 - Debt and Equity Securi

Note 3 - Debt and Equity Securities	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	( 3 Debt and Equity Securities Debt and equity securities have been classified in the consolidated balance sheet according to management’s intent. Debt and equity securities at December 31, 2020 Securities Available-For-Sale In Thousands Gross Unrealized Gross Unrealized Estimated Market Amortized Cost Gains Losses Value Government-sponsored enterprises (GSEs) $ 125,712 328 135 125,905 Mortgage-backed securities 258,774 5,636 620 263,790 Asset-backed securities 36,394 582 19 36,957 Corporate bonds 2,500 100 — 2,600 Obligations of states and political subdivisions 147,462 4,229 400 151,291 $ 570,842 10,875 1,174 580,543 The Company’s classification of securities at December 31, 2019 Securities Available-For-Sale In Thousands Gross Unrealized Gross Unrealized Estimated Market Amortized Cost Gains Losses Value Government-sponsored enterprises (GSEs) $ 59,735 48 204 59,579 Mortgage-backed securities 265,648 2,300 635 267,313 Asset-backed securities 27,531 1 303 27,229 Corporate bonds — — — — Obligations of states and political subdivisions 67,293 559 828 67,024 $ 420,207 2,908 1,970 421,145 Included in mortgage-backed securities are collateralized mortgage obligations totaling $88,472,000 (fair value of $89,116,000) an December 31, 2020 2019 The amortized cost and estimated market value of debt securities at December 31, 2020 may In Thousands Securities Available-For-Sale Amortized Cost Estimated Market Value Due in one year or less $ 1,196 1,198 Due after one year through five years 26,325 26,542 Due after five years through ten years 107,341 108,184 Due after ten years 140,812 143,872 275,674 279,796 Mortgage and asset-backed securities 295,168 300,747 $ 570,842 580,543 Results from sales of debt and equity securities are as follows: In Thousands 2020 2019 2018 Gross proceeds $ 54,870 37,325 39,857 Gross realized gains $ 901 75 102 Gross realized losses (19 ) (343 ) (752 ) Net realized gains (losses) $ 882 (268 ) (650 ) Securities carried on the balance sheet of approximately $282,028,000 (approximate market value of $288,013,000) and $256,300,000 (approximate market value of $256,598,000) were pledged to secure public deposits and for other purposes as required or permitted by law at December 31, 2020 2019 Included in the securities above are $78,931,000 (approximate market value of $80,713,000) at December 31, 2020 Securities that have rates that adjust prior to maturity totaled $48,215,000 (approximate market value of $48,439,000) a n $48,018,000 (approximate market value of $47,784,000) December 31, 2020 2019 Temporarily Impaired Securities The following table shows the gross unrealized losses and fair value of the Company’s available-for-sale securities with unrealized losses that are not December 31, 2020 2019 In Thousands, Except Number of Securities Less than 12 Months 12 Months or More Total Number of Number of Unrealized Securities Unrealized Securities Unrealized 2020 Fair Value Losses Included Fair Value Losses Included Fair Value Losses Available-for-Sale Securities: Debt securities: GSEs $ 47,991 $ 135 18 $ — $ — — $ 47,991 $ 135 Mortgage-backed securities 78,381 573 29 6,776 47 12 85,157 620 Asset-backed securities 4,950 19 3 — — — 4,950 19 Corporate bonds — — — — — — — — Obligations of states and political subdivisions 44,061 394 33 689 6 1 44,750 400 $ 175,383 $ 1,121 83 $ 7,465 $ 53 13 $ 182,848 $ 1,174 In Thousands, Except Number of Securities Less than 12 Months 12 Months or More Total Number of Number of Unrealized Securities Unrealized Securities Unrealized 2019 Fair Value Losses Included Fair Value Losses Included Fair Value Losses Available-for-Sale Securities: Debt securities: GSEs $ 16,507 $ 114 5 $ 24,658 $ 90 9 $ 41,165 $ 204 Mortgage-backed securities 45,862 182 21 56,917 453 52 102,779 635 Asset-backed securities 17,807 161 10 7,317 142 4 25,124 303 Corporate bonds — — — — — — — — Obligations of states and political subdivisions 30,423 783 26 3,858 45 10 34,281 828 $ 110,599 $ 1,240 62 $ 92,750 $ 730 75 $ 203,349 $ 1,970 As of December 31, 2020 not not not not December 31, 2020 no

Note 4 - Leases

Note 4 - Leases	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Lessee, Operating Leases [Text Block]	( 4 Leases Lessee Accounting The majority of leases in which the Company is the lessee are comprised of real estate property for branches and office space and are recorded as operating leases with terms extending beyond 2025. not 12 The following table represents lease assets and lease liabilities as of December 31, 2020 December 31, 2019 Lease right-of-use assets Classification December 31, 2020 December 31, 2019 Operating lease right-of-use assets Other Assets $ 3,825 2,573 Lease liabilities Classification December 31, 2020 December 31, 2019 Operating lease liabilities Other Liabilities $ 3,947 2,614 The total lease cost related to operating leases and short term leases is recognized on a straight-line basis over the lease term. The components of the Bank's total least cost were as follows for the year ended December 31, 2020 2019 In Thousands 2020 2019 Operating lease cost $ 535 372 Short-term lease cost 4 21 Net lease cost $ 539 393 The weighted average remaining lease term and weighted average discount rate for operating leases at December 31, 2020 2019 2020 2019 Operating Leases Weighted average remaining lease term (in years) 11.31 11.79 Weighted average discount rate 4.00 % 4.00 % Cash flows related to operating leases during the year ended December 31, 2020 2019 In Thousands 2020 2019 Operating cash flows related to operating leases $ 426 360 Future undiscounted lease payments for operating leases with initial terms of more than 12 December 31, 2020 2019 In Thousands 2020 2021 $ 494 2022 463 2023 471 2024 485 2025 490 Thereafter 2,521 Total undiscounted lease payments 4,924 Less: imputed interest (977 ) Net lease liabilities $ 3,947

Note 5 - Restricted Equity Secu

Note 5 - Restricted Equity Securities	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Restricted Equity Securities [Text Block]	( 5 Restricted Equity Securities Restricted equity securities consists of stock of the FHLB of Cincinnati amounting to $5,089,000 and $4,680,000 a December 31, 2020 2019

Note 6 - Premises and Equipment

Note 6 - Premises and Equipment	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	( 6 Premises and Equipment The detail of premises and equipment at December 31, 2020 2019 In Thousands 2020 2019 Land $ 17,093 17,093 Buildings 46,584 46,389 Leasehold improvements 573 533 Furniture and equipment 13,861 13,000 Automobiles 175 243 Construction-in-progress 317 1,339 78,603 78,597 Less accumulated depreciation (20,401 ) (18,302 ) $ 58,202 60,295 During 2020, 2019 2018 Depreciation expense was $4,250,000, $3,984,000 and $3,602,000 for the years ended December 31, 2020 2019 2018

Note 7 - Goodwill

Note 7 - Goodwill	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Goodwill Disclosure [Text Block]	( 7 Goodwill The Company's intangible assets result from the excess of purchase price over the applicable book value of the net assets acquired related to outside ownership of two 50% 2005. In Thousands 2020 2019 Goodwill: Balance at January 1, $ 4,805 4,805 Goodwill acquired during year — — Impairment loss — — Balance at December 31, $ 4,805 4,805

Note 8 - Deposits

Note 8 - Deposits	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Deposit Liabilities Disclosures [Text Block]	( 8 Deposits Deposits at December 31, 2020 2019 In Thousands 2020 2019 Demand deposits $ 391,360 284,611 Savings accounts 201,984 140,270 Negotiable order of withdrawal accounts 771,195 558,745 Money market demand accounts 984,677 801,986 Certificates of deposit $250,000 or greater 112,696 131,899 Other certificates of deposit 425,299 425,222 Individual retirement accounts $250,000 or greater 10,323 10,646 Other individual retirement accounts 63,061 64,226 $ 2,960,595 2,417,605 Principal maturities of certificates of deposit and individual retirement accounts at December 31, 2020 (In Thousands) Maturity Total 2021 $ 342,291 2022 138,959 2023 87,243 2024 23,157 2025 19,271 Thereafter 458 $ 611,379 The aggregate amount of overdrafts reclassified as loans receivable was $284,000 and $529,000 at December 31, 2020 2019 As of December 31, 2020 2019 not

Note 9 - Federal Home Loan Bank

Note 9 - Federal Home Loan Bank Advances	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Federal Home Loan Bank Advances, Disclosure [Text Block]	( 9 Federal Home Loan Bank Advances At December 31, 2020 2019 December 31, 2020 1 4 December 31, 2020 Required future principal payments on Federal Home Loan Bank borrowings are as follows: (In Thousands) Maturity Total 2021 $ 1,350 2022 1,350 2023 788 2024 150 2025 — Thereafter — Total $ 3,638

Note 10 - Non-interest Income a

Note 10 - Non-interest Income and Non-interest Expense	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Other Income and Other Expense Disclosure [Text Block]	( 10 Non-Interest Income and Non-Interest Expense The significant components of non-interest income and non-interest expense for the years ended December 31, 2020 2019 2018 In Thousands 2020 2019 2018 Non-interest income: Service charges on deposits $ 5,659 6,952 6,799 Brokerage income 4,837 4,411 4,255 Debit and credit card interchange income 9,187 8,301 7,325 Other fees and commissions 1,540 1,521 2,124 BOLI and annuity earnings 823 810 841 Security gain (loss), net 882 (268 ) (650 ) Fees and gains on sales of mortgage loans 9,560 6,802 4,639 Gain (loss) on sale of other real estate, net 658 (48 ) (80 ) Loss on sale of fixed assets, net (63 ) (128 ) (2 ) Loss on sale of other assets, net (4 ) (4 ) (3 ) Other income 61 — — $ 33,140 28,349 25,248 In Thousands 2020 2019 2018 Non-interest expense: Employee salaries and benefits $ 45,661 42,541 39,590 Equity-based compensation 1,180 786 1,237 Occupancy expenses 5,216 4,789 4,403 Furniture and equipment expenses 3,267 3,110 2,767 Data processing expenses 5,101 4,495 2,900 Advertising expenses 2,487 2,498 2,552 ATM & interchange fees 3,880 3,439 3,091 Accounting, legal & consulting expenses 909 1,382 977 FDIC insurance 598 373 843 Directors’ fees 634 586 543 Other operating expenses 11,986 10,629 10,177 $ 80,919 74,628 69,080

Note 11 - Income Taxes

Note 11 - Income Taxes	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Income Tax Disclosure [Text Block]	( 11 Income Taxes The components of the net deferred tax asset are as follows: In Thousands 2020 2019 Deferred tax asset: Federal $ 9,500 7,444 State 2,913 2,240 12,413 9,684 Deferred tax liability: Federal (4,000 ) (2,666 ) State (1,324 ) (882 ) (5,324 ) (3,548 ) Net deferred tax asset $ 7,089 6,136 The tax effects of each type of significant item that gave rise to deferred tax assets (liabilities) are: In Thousands 2020 2019 Financial statement allowance for loan losses in excess of tax allowance $ 9,840 7,283 Excess of depreciation deducted for tax purposes over the amounts deducted in the financial statements (2,461 ) (2,976 ) Financial statement deduction for deferred compensation in excess of deduction for tax purposes 1,253 1,193 Writedown of other real estate not deductible for income tax purposes until sold — 157 Financial statement income on FHLB stock dividends not recognized for tax purposes (327 ) (327 ) Unrealized gain on securities available-for-sale (2,535 ) (245 ) Equity based compensation 854 625 Other items, net 465 426 Net deferred tax asset $ 7,089 6,136 The components of income tax expense (benefit) are summarized as follows: In Thousands Federal State Total 2020 Current $ 11,383 1,539 12,922 Deferred (2,503 ) (801 ) (3,304 ) Total $ 8,880 738 9,618 2019 Current $ 10,134 1,411 11,545 Deferred (335 ) (143 ) (478 ) Total $ 9,799 1,268 11,067 2018 Current $ 8,310 721 9,031 Deferred (136 ) (112 ) (248 ) Total $ 8,174 609 8,783 A reconciliation of actual income tax expense of $9,618,000, $11,067,000 and $8,783,000 for the years ended December 31, 2020 2019 2018 2020 2019 2018 In Thousands 2020 2019 2018 Computed “expected” tax expense $ 10,103 9,893 8,689 State income taxes, net of Federal income tax benefit 552 1,056 432 Tax exempt interest, net of interest expense exclusion (245 ) (186 ) (226 ) Earnings on cash surrender value of life insurance (173 ) (170 ) (177 ) Expenses not deductible for tax purposes 14 37 16 Equity based compensation (6 ) 15 (39 ) Other (627 ) 422 88 $ 9,618 11,067 8,783 Total income tax expense for 2020, 2019 2018 As of December 31, 2020 2019 2018 not There were no December 31, 2020 Wilson Bank does not 12 December 31, 2020 ately million o not The Company and Wilson Bank file income tax returns in the United States (“U.S.”), as well as in the State of Tennessee. The Company is no 2017 December 31, 2005 no

Note 12 - Commitments and Conti

Note 12 - Commitments and Contingent Liabilities	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	( 12 Commitments and Contingent Liabilities The Company is party to litigation and claims arising in the normal course of business. Management, after consultation with legal counsel, believes that the liabilities, if any, arising from such litigation and claims will not At December 31, 2020 2019 December 31, 2020 2019 no The Company also has a Cash Management Advance ("CMA") Line of Credit agreement. The CMA is a component of the Company's Blanket Agreement for advances with the FHLB. The purpose of the CMA is to assist with short-term liquidity management. Under the terms of the CMA, the Company may no tstanding under the CMA at December 31, 2020 December 31, 2019

Note 13 - Financial Instruments

Note 13 - Financial Instruments with Off-balance-sheet Risk	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Financial Instruments Disclosure [Text Block]	( 13 Financial Instruments with Off-Balance-Sheet Risk The Company is 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 consist primarily of commitments to extend credit. These instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the consolidated balance sheets. The contract or notional amounts of those instruments reflect the extent of involvement the Company has in particular classes of financial instruments. The Company's exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit is represented by the contractual notional amount of those instruments. The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance-sheet instruments. In Thousands Contract or Notional Amount 2020 2019 Financial instruments whose contract amounts represent credit risk: Unused commitments to extend credit $ 851,196 632,686 Standby letters of credit 81,952 72,901 Total $ 933,148 705,587 Commitments to extend credit are agreements to lend to a customer as long as there is no may Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third one two December 31, 2020

Note 14 - Concentration of Cred

Note 14 - Concentration of Credit Risk	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Concentration Risk Disclosure [Text Block]	( 14 Concentration of Credit Risk Practically all of the Company’s loans, commitments, and commercial and standby letters of credit have been granted to customers in the Company’s market area. Practically all such customers are depositors of Wilson Bank. The concentrations of credit by type of loan are set forth in note 2 Interest bearing deposits totaling $238,226,000 were deposited with five December 31, 2020 one not Federal funds sold in the amount of $675,000 were deposited with one at December 31, 2020

Note 15 - Employee Benefit Plan

Note 15 - Employee Benefit Plan	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Retirement Benefits [Text Block]	( 15 Employee Benefit Plan Wilson Bank has in effect a 401 “401 401 December 31, 2020 2019 2018 ed $2,926,000, $2,540,000 401

Note 16 - Dividend Reinvestment

Note 16 - Dividend Reinvestment Plan	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Dividend Reinvestment Plan [Text Block]	( 16 Dividend Reinvestment Plan Under the terms of the Company’s dividend reinvestment plan (the “DRIP”) holders of common stock may may f 180,424 2020 2019 2018

Note 17 - Regulatory Matters an

Note 17 - Regulatory Matters and Restrictions on Dividends	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Restrictions on Dividends, Loans and Advances [Text Block]	( 17 Regulatory Matters and Restrictions on Dividends Banks and bank holding companies are subject to regulatory capital requirements administered by federal banking agencies. Capital adequacy guidelines and, additionally for banks, prompt corrective action regulations, involve quantitative measures of assets, liabilities, and certain off-balance-sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators. Failure to meet capital requirements can initiate regulatory action. The final rules implementing Basel Committee on Banking Supervision's capital guidelines for U.S. Banks (Basel III rules) became effective for the Company on January 1, 2015 January 1, 2019. Under the Basel III rules, in order to avoid limitations on capital distributions, including dividend payments and certain discretionary bonus payments to executive officers, a banking organization must hold a capital conservation buffer composed of Common Equity Tier 1 January 1, 2016 January 1, 2019. 2019 2020 2.5%. 2.5% not 2.5% 2.5% four not five not December 31, 2019, The Company's and Wilson Bank's actual capital amounts and ratios as of December 31, 2019 Actual Regulatory Minimum Capital Requirement with Basel III Capital Conservation Buffer Amount Ratio Amount Ratio (dollars in thousands) December 31, 2019 Total capital to risk weighted assets: Consolidated $ 360,645 15.0 % $ 253,215 10.5 % Wilson Bank 359,576 14.9 252,675 10.5 Tier 1 capital to risk weighted assets: Consolidated 331,485 13.7 204,984 8.5 Wilson Bank 330,416 13.7 204,547 8.5 Common equity Tier 1 capital to risk weighted assets: Consolidated 331,485 13.7 168,810 7.0 Wilson Bank 330,416 13.7 168,451 7.0 Tier 1 capital to average assets: Consolidated 331,485 12.4 106,565 4.0 Wilson Bank 330,416 11.9 110,764 4.0 In 2018, 2018 $10.0 1 October 2019, 1 9 not 9 1 not 25% two 7%. Pursuant to the CARES Act the required Community Bank Leverage Ratio was lowered to 8% December 31, 2020 60 19. 7%. The Company opted to take advantage of this rule effective January 1, 2020. not December 31, 2020. Effective November 9, 2020, 8.5% 2021 9% two 7.5% 2021 8% may January 1, 2020. may December 31, 2020 Regulatory Minimum Capital Requirement Actual Community Bank Leverage Ratio Amount Ratio Amount Ratio (dollars in thousands) December 31, 2020 Community Bank Leverage Ratio: Consolidated $ 368,150 11.2 % $ 230,993 7.0 % Wilson Bank 364,976 11.1 230,929 7.0

Note 18 - Salary Deferral Plans

Note 18 - Salary Deferral Plans	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Compensation Related Costs, General [Text Block]	( 18 Salary Deferral Plans The Company provides some of its officers certain non-qualified pension benefits through an Executive Salary Continuation Plan ("the Plan") and Supplemental Executive Retirement Plan (SERP) Agreements ("SERP Agreements"). The Plan and SERP agreements were established by the Board of Directors to reward executive management for past performance and to provide additional incentive to retain the service of executive management. The Plan and SERP Agreements generally provide executives with benefits of a portion of their salary beginning at retirement through life. As a result, the Company has accrued a liability for future obligations under the Plan and SERP Agreements. At December 31, 2020 2019 December 31, 2020 2019 led The Company has purchased life insurance policies to provide the benefits related to the Plan, which at December 31, 2020 and 2019 had an aggregate cash surrender value o The Company has also purchased bank owned life insurance policies on some of its officers. The insurance policies remain the sole property of the Company and are payable to the Company. The cash surrender value of the life insurance contracts totaled $29,650,000 and $27,105,000 and the face amount of the insurance policies in force approximated $68,827,000 an d December 31, 2020 2019 The Company has also purchased Flexible Premium Indexed Deferred Annuity Contracts (“Annuity Contracts”) to provide benefits related to the SERP Agreements. The Annuity Contracts remain the sole property of the Company and are payable to the Company. Included in other assets at December 31, 2020 2019 e o

Note 19 - Equity Incentive Plan

Note 19 - Equity Incentive Plan	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Share-based Payment Arrangement [Text Block]	( 19 Equity Incentive Plan In April 2009, 2009 “2009 2009 April 14, 2009. 2009 2009 2009 2009 April 13, 2019, no may 2009 2009 December 31, 2020 2009 During the second quarter of 2016, 2016 2016 January 25, 2016 April 12, 2016. September 26, 2016, 2016 “2016 not may 2016 December 31, 2020 , the Company 2016 December 31, 2020 As of December 31, 2020 December 31, 2020 2019 The fair value of each stock option and cash-settled SAR grant is estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions used for grants in 2020, 2019 2018 2020 2019 2018 Expected dividends 1.56 % 1.60 % 1.22 % Expected term (in years) 7.38 7.14 9.35 Expected stock price volatility 31 % 25 % 24 % Risk-free rate 0.52 % 1.90 % 2.83 % The expected stock price volatility is based on historical volatility adjusted for consideration of other relevant factors. The risk-free interest rates for periods within the contractual life of the awards are based on the U.S. Treasury yield curve in effect at the time of the grant. The dividend yield and forfeiture rate assumptions are based on the Company’s history and expectation of dividend payouts and forfeitures. A summary of the stock option and cash-settled SAR activity for 2020, 2019 2018 2020 2019 2018 Weighted Average Weighted Average Weighted Average Shares Exercise Price Shares Exercise Price Shares Exercise Price Outstanding at beginning of year 273,039 $ 41.19 277,820 $ 40.11 285,780 $ 39.31 Granted 43,833 55.72 17,833 51.16 21,666 46.59 Exercised (24,881 ) 37.84 (22,614 ) 35.78 (22,460 ) 37.07 Forfeited or expired (7,400 ) 41.70 — — (7,166 ) 37.53 Outstanding at end of year 284,591 $ 43.71 273,039 $ 41.19 277,820 $ 40.11 Options and cash-settled SARs exercisable at year end 151,695 $ 40.89 122,932 $ 40.19 94,951 $ 39.14 The weighted average fair value at the grant date of options and cash-settled SARs granted during the years 2020, 2019 2018 was 2020, 2019 2018 369,000 and $200,000, respectively. The following table summarizes information about outstanding and exercisable stock options and cash-settled SARs at December 31, 2020 Options and Cash-Settled SARs Outstanding Options and Cash-Settled SARs Exercisable Range of Exercise Prices Number Outstanding at 12/31/20 Weighted Average Exercise Price Weighted Average Remaining Contractual Term (In Years) Number Outstanding at 12/31/20 Weighted Average Exercise Price Weighted Average Remaining Contractual Term (In Years) $29.81 - $44.75 205,692 $ 40.26 4.96 141,195 $ 40.34 4.64 $46.00 - $69.00 78,899 $ 52.68 8.67 10,500 $ 48.32 7.53 284,591 151,695 Aggregate intrinsic value (in thousands) $ 4,281 $ 2,709 As of December 31, 2020 al unrecognized cost related to non-vested share-based compensation arrangements granted under the Company’s equity incentive plans. The cost is expected to be recognized over a weighted-average period

Note 20 - Earnings Per Share

Note 20 - Earnings Per Share	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Earnings Per Share [Text Block]	( 20 Earnings Per Share The computation of basic earnings per share is based on the weighted average number of common shares outstanding during the period. The computation of diluted earnings per share for the Company begins with the basic earnings per share plus the effect of common shares contingently issuable from stock options. The following is a summary of the components comprising basic and diluted earnings per share (“EPS”): Years Ended December 31, 2020 2019 2018 Basic EPS Computation: Numerator – Earnings available to common stockholders $ 38,492 36,044 32,594 Denominator – Weighted average number of common shares outstanding 10,927,065 10,743,269 10,564,172 Basic earnings per common share $ 3.52 3.36 3.09 Diluted EPS Computation: Numerator – Earnings available to common stockholders $ 38,492 36,044 32,594 Denominator – Weighted average number of common shares outstanding 10,927,065 10,743,269 10,564,172 Dilutive effect of stock options 26,681 18,198 8,049 10,953,746 10,761,467 10,572,221 Diluted earnings per common share $ 3.51 3.35 3.08

Note 21 - Derivatives

Note 21 - Derivatives	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Derivative Instruments and Hedging Activities Disclosure [Text Block]	( 21 Derivatives Derivatives Designated as Fair Value Hedges For derivative instruments that are designated and qualify as a fair value hedge, the gain or loss on the derivative instrument as well as the offsetting loss or gain on the hedged asset or liability attributable to the hedged risk are recognized in current earnings. The gain or loss on the derivative instrument is presented on the same income statement line item as the earnings effect of the hedged item. The Company utilizes interest rate swaps designated as fair value hedges to mitigate the effect of changing interest rates on the fair values of fixed rate loans. The hedging strategy on loans converts the fixed interest rates to LIBOR-based variable interest rates. These derivatives are designated as partial term hedges of selected cash flows covering specified periods of time prior to the maturity dates of the hedged loans. During the second 2020, one 1 A summary of the Company's fair value hedge relationships as of December 31, 2020 December 31, 2019 December 31, 2020 December 31, 2019 Balance Sheet Location Weighted Average Remaining Maturity (In Years) Weighted Average Pay Rate Receive Rate Notional Amount Estimated Fair Value Notional Amount Estimated Fair Value Liability derivative Interest rate swap agreements - loans Other liabilities 9.42 0.65 % 1 month LIBOR $ 29,575 (51 ) — — The effects of fair value hedge relationships reported in interest income on loans on the consolidated statements of income for the twelve December 31, 2020 2019 Twelve Months Ended December 31, Gain (loss) on fair value hedging relationship 2020 2019 Interest rate swap agreements - loans: Hedged items $ (158 ) — Derivative designated as hedging instruments (51 ) — The following amounts were recorded on the balance sheet related to cumulative basis adjustments for fair value hedges at December 31, 2020 December 31, 2019 Carrying Amount of the Hedged Assets Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets Line item on the balance sheet December 31, 2020 December 31, 2019 December 31, 2020 December 31, 2019 Loans $ 29,575 — (158 ) — Mortgage Banking Derivatives Commitments to fund certain mortgage loans (interest rate locks) to be sold into the secondary market and forward commitments for the future delivery of mortgage loans to third December 31, 2020 December 31, 2019 roximately $20,981,000 and $10,307,000, respectively, of interest rate lock commitments and approximately $21,250,000 and $14,000,000, respectively, of forward commitments for the future delivery of residential mortgage loans. The fair value of these mortgage banking derivatives was reflected by derivative assets of $714,000 and $328,000 and derivative liabilities of $157,000 and $23,000, respectively, at December 31, 2020 and December 31, 2019 . Changes in the fair values of these mortgage-banking derivatives are included in net gains on sale of loans. The net gains (losses) relating to free-standing derivative instruments used for risk management is summarized below (in thousands): In Thousands 2020 2019 Interest rate contracts for customers $ 386 (7 ) Forward contracts related to mortgage loans held for sale and interest rate contracts (134 ) 65 The following table reflects the amount and fair value of mortgage banking derivatives included in the consolidated balance sheet as of December 31, 2020 December 31, 2019 In Thousands 2020 2019 Notional Amount Fair Value Notional Amount Fair Value Included in other assets (liabilities): Interest rate contracts for customers $ 20,981 714 10,307 328 Forward contracts related to mortgage loans held-for-sale 21,250 (157 ) 14,000 (23 )

Note 22 - Disclosures About Fai

Note 22 - Disclosures About Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Fair Value Disclosures [Text Block]	( 22 Disclosures About Fair Value of Financial Instruments Fair Value of Financial Instruments FASB ASC 820, Fair Value Measurements and Disclosures (“ASC 820” not not Valuation Hierarchy FASB ASC 820 three three • Level 1 • Level 2 • Level 3 A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Following is a description of the valuation methodologies used for assets and liabilities measured at fair value, as well as the general classification of such assets and liabilities pursuant to the valuation hierarchy. Asset Securities available-for-sale - 1 1 not 2 3 third third Hedged Loans - Impaired loans - may 3 Other real estate owned - 3 Bank Owned Life Insurance 3 not Mortgage loans held for sale 2 Derivatives - 2 The following tables present the financial instruments carried at fair value as of December 31, 2020 December 31, 2019 820 Measured on a Recurring Basis Total Carrying Value in the Consolidated Balance Sheet Quoted Market Prices in an Active Market (Level 1) Models with Significant Observable Market Parameters (Level 2) Models with Significant Unobservable Market Parameters (Level 3) December 31, 2020 Hedged Loans $ 29,417 — 29,417 — Investment securities available-for-sale: U.S. Government sponsored enterprises 125,905 — 125,905 — Mortgage-backed securities 263,790 — 263,790 — Asset-backed securities 36,957 — 36,957 — Corporate bonds 2,600 — 2,600 — State and municipal securities 151,291 — 151,291 — Total investment securities available-for-sale 580,543 — 580,543 — Mortgage loans held for sale 19,474 — 19,474 — Derivatives 714 — 714 — Bank owned life insurance 35,197 — — 35,197 Total assets $ 665,345 --- 630,148 35,197 Derivatives $ 208 — 208 — Total liabilities $ 208 — 208 — Measured on a Recurring Basis Total Carrying Value in the Consolidated Balance Sheet Quoted Market Prices in an Active Market (Level 1) Models with Significant Observable Market Parameters (Level 2) Models with Significant Unobservable Market Parameters (Level 3) December 31, 2019 Hedged Loans $ — — — — Investment securities available-for-sale: U.S. Government sponsored enterprises 59,579 — 59,579 — Mortgage-backed securities 267,313 — 267,313 — Asset-backed securities 27,229 — 27,229 — Corporate bonds — — — — State and municipal securities 67,024 — 67,024 — Total investment securities available-for-sale 421,145 — 421,145 — Mortgage loans held for sale 18,179 — 18,179 — Derivatives 328 — 328 — Bank owned life insurance 31,762 — — 31,762 Total assets $ 471,414 --- 439,652 31,762 Derivatives $ 23 — 23 — Total liabilities $ 23 — 23 — Measured on a Non-Recurring Basis Total Carrying Value in the Consolidated Balance Sheet Quoted Market Prices in an Active Market (Level 1) Models with Significant Observable Market Parameters (Level 2) Models with Significant Unobservable Market Parameters (Level 3) December 31, 2020 Other real estate owned $ — — — — Impaired loans, net (¹) 2,635 — — 2,635 Total $ 2,635 — — 2,635 December 31, 2019 Other real estate owned $ 697 — — 697 Impaired loans, net (¹) 3,916 — — 3,916 Total $ 4,613 — — 4,613 ( 1 Amount is net of a valuation allowance of $742,000 at December 31, 2020 December 31, 2019 310, The following table presents additional quantitative information about assets measured at fair value on a nonrecurring basis and for which we have utilized Level 3 December 31, 2020 2019 Valuation Techniques (2) Significant Unobservable Inputs Range (Weighted Average) Impaired loans Appraisal Estimated costs to sell 10 % Other real estate owned Appraisal Estimated costs to sell 10 % (2) The fair value is generally determined through independent appraisals of the underlying collateral, which may include Level 3 inputs that are not identifiable, or by using the discounted cash flow method if the loan is not collateral dependent. In the case of its investment securities portfolio, the Company monitors the valuation technique utilized by various pricing agencies to ascertain when transfers between levels have been affected. The nature of the remaining assets and liabilities is such that transfers in and out of any level are expected to be rare. For the twelve December 31, 2020 no 1, 2 3. The table below includes a rollforward of the balance sheet amounts for the year ended December 31, 2020 2019 3 3 3 3 For the Year Ended December 31, 2020 2019 Other Assets Other Assets Fair value, January 1 $ 31,762 $ 30,952 Total realized gains included in income 823 810 Change in unrealized gains/losses included in other comprehensive income for assets and liabilities still held at December 31 — — Purchases, issuances and settlements, net 2,612 — Transfers out of Level 3 — — Fair value, December 31 $ 35,197 $ 31,762 Total realized gains included in income related to financial assets and liabilities still on the consolidated balance sheet at December 31 $ 823 $ 810 The following methods and assumptions were used by the Company in estimating its fair value disclosures for financial instruments that are not not December 31, 2020 December 31, 2019 not may Cash and cash equivalents 1. Loans For variable-rate loans that reprice frequently and have no Deposits and Federal Home Loan Bank advances Restricted equity securities not Accrued interest receivable/payable 1, 2 3 Off-balance sheet instruments not The following table presents the carrying amounts, estimated fair value and placement in the fair value hierarchy of the Company’s financial instruments at December 31, 2020 December 31, 2019 (in Thousands) Carrying/Notional Amount Estimated Fair Value (¹) Quoted Market Prices in an Active Market (Level 1) Models with Significant Observable Market Parameters (Level 2) Models with Significant Unobservable Market Parameters (Level 3) December 31, 2020 Financial assets: Cash and cash equivalents $ 338,856 338,856 338,856 — — Loans, net 2,282,766 2,302,530 — — 2,302,530 Restricted equity securities 5,089 NA NA NA NA Accrued interest receivable 7,516 7,516 1 2,210 5,305 Financial liabilities: Deposits 2,960,595 2,796,339 — — 2,796,339 Federal Home Loan Bank borrowings 3,638 3,755 — — 3,755 Accrued interest payable 3,051 3,051 — — 3,051 December 31, 2019 Financial assets: Cash and cash equivalents $ 159,770 159,770 159,770 — — Loans, net 2,057,175 2,053,212 — — 2,053,212 Restricted equity securities 4,680 NA NA NA NA Accrued interest receivable 5,945 5,945 5 1,647 4,293 Financial liabilities: Deposits 2,417,605 2,210,038 — — 2,210,038 Federal Home Loan Bank borrowings 23,613 23,860 — — 23,860 Accrued interest payable 3,814 3,814 — — 3,814 ( 1 Estimated fair values are consistent with an exit-price concept. The assumptions used to estimate the fair values are intended to approximate those that a market-participant would realize in a hypothetical orderly transaction.

Note 23 - Pandemic Impact (COVI

Note 23 - Pandemic Impact (COVID-19)	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Effect of COVID-19 Pandemic [Text Block]	( 23 Pandemic Impact (COVID- 19 In March 2020, 19 April 2, 2020 May 2020, not 19 may 19 may As a result of the pandemic, many states and municipalities are facing a strain on resources and a reduction in tax collections. As a result, certain states and municipalities have asked for potential assistance from the Federal government to cover the cost of resource depletion and tax shortfalls. The ability of states and municipalities to fund shortfalls could have an effect on their ability to sustain debt maintenance, which would consequently impact the value of our municipal bond portfolio.

Note 24 - Wilson Bank Holding C

Note 24 - Wilson Bank Holding Company - Parent Company Financial Information	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Condensed Financial Information of Parent Company Only Disclosure [Text Block]	( 24 Wilson Bank Holding Company - Parent Company Financial Information WILSON BANK HOLDING COMPANY (Parent Company Only) Balance Sheets December 31, 2020 2019 Dollars In Thousands 2020 2019 ASSETS Cash $ 4,381 * 1,899 * Investment in wholly-owned commercial bank subsidiary 376,947 335,915 Deferred income taxes 854 625 Refundable income taxes 242 132 Total assets $ 382,424 338,571 LIABILITIES AND STOCKHOLDERS’ EQUITY Stock appreciation rights payable $ 2,303 1,587 Total liabilities 2,303 1,587 Stockholders’ equity: Common stock, par value $ 2.00 50,000,000 10,993,404 10,792,999 21,987 21,586 Additional paid-in capital 93,034 82,249 Retained earnings 257,935 232,456 Net unrealized gains on available-for-sale securities, net of income taxes of $ 2,536 245 7,165 693 Total stockholders’ equity 380,121 336,984 Total liabilities and stockholders’ equity $ 382,424 338,571 * Eliminated in consolidation. WILSON BANK HOLDING COMPANY (Parent Company Only) Statements of Earnings Three Years Ended December 31, 2020 Dollars In Thousands 2020 2019 2018 Income: Dividends from commercial bank subsidiary $ 5,000 2,800 3,000 Other income 61 — — 5,061 2,800 3,000 Expenses: Directors’ fees 335 283 254 Other 1,264 885 1,351 1,599 1,168 1,605 Income before Federal income tax benefits and equity in undistributed earnings of commercial bank subsidiary 3,462 1,632 1,395 Federal income tax benefits 471 287 468 3,933 1,919 1,863 Equity in undistributed earnings of commercial bank subsidiary 34,559 * 34,125 * 30,731 * Net earnings $ 38,492 36,044 32,594 * Eliminated in consolidation. WILSON BANK HOLDING COMPANY (Parent Company Only) Statements of Cash Flows Three Years Ended December 31, 2020 Increase (Decrease) in Cash and Cash Equivalents Dollars In Thousands 2020 2019 2018 Cash flows from operating activities: Other income received $ 61 — — Cash paid to suppliers and other (418 ) (383 ) (367 ) Tax benefits received 131 177 181 Net cash used in operating activities (226 ) (206 ) (186 ) Cash flows from investing activities: Dividends received from commercial bank subsidiary 5,000 2,800 3,000 Net cash provided by investing activities 5,000 2,800 3,000 Cash flows from financing activities: Payments made to stock appreciation rights holders (53 ) (9 ) (61 ) Dividends paid (13,013 ) (11,725 ) (9,447 ) Proceeds from sale of stock pursuant to dividend reinvestment plan 10,056 9,134 7,470 Proceeds from exercise of common shares 718 775 394 Repurchase of stock options — (1,629 ) — Net cash used in financing activities (2,292 ) (3,454 ) (1,644 ) Net increase (decrease) in cash and cash equivalents 2,482 (860 ) 1,170 Cash and cash equivalents at beginning of year 1,899 2,759 1,589 Cash and cash equivalents at end of year $ 4,381 1,899 2,759 WILSON BANK HOLDING COMPANY (Parent Company Only) Statements of Cash Flows, Continued Three Years Ended December 31, 2020 Increase (Decrease) in Cash and Cash Equivalents Dollars in Thousands 2020 2019 2018 Reconciliation of net earnings to net cash used in operating activities: Net earnings $ 38,492 36,044 32,594 Adjustments to reconcile net earnings to net cash used in operating activities: Equity in earnings of commercial bank subsidiary (39,559 ) (36,925 ) (33,731 ) Decrease (increase) in refundable income taxes (110 ) 45 5 Increase in deferred taxes (229 ) (156 ) (291 ) Share based compensation expense 1,180 786 1,237 Total adjustments (38,718 ) (36,250 ) (32,780 ) Net cash used in operating activities $ (226 ) (206 ) (186 )

Note 25 - Quarterly Financial D

Note 25 - Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Quarterly Financial Information [Text Block]	( 25 Quarterly Financial Data (Unaudited) Selected quarterly results of operations for the four December 31 (In Thousands, except per share data) 2020 2019 2018 Fourth Third Second First Fourth Third Second First Fourth Third Second First Quarter Quarter Quarter Quarter Quarter Quarter Quarter Quarter Quarter Quarter Quarter Quarter Interest income $ 30,351 30,961 31,569 30,087 $ 29,897 30,329 29,567 28,284 $ 27,585 26,298 25,548 24,094 Interest expense 3,969 4,112 4,308 4,994 5,522 5,991 5,923 5,211 4,606 3,656 3,097 2,659 Net interest income 26,382 26,849 27,261 25,093 24,375 24,338 23,644 23,073 22,979 22,642 22,451 21,435 Provision for loan losses 3,065 1,038 4,124 1,469 686 167 154 1,033 1,097 1,088 1,090 1,023 Earnings before income taxes 10,771 14,669 11,313 11,357 10,222 13,556 12,451 10,882 10,708 10,718 9,798 10,153 Net earnings 8,902 11,532 9,027 9,031 7,972 10,266 9,516 8,290 9,833 7,972 7,309 7,480 Basic earnings per common share 0.81 1.05 0.83 0.83 0.74 0.95 0.89 0.77 0.93 0.75 0.69 0.71 Diluted earnings per common share 0.81 1.05 0.83 0.83 0.74 0.95 0.89 0.77 0.92 0.75 0.69 0.71

Note 26 - Subsequent Events

Note 26 - Subsequent Events	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Subsequent Events [Text Block]	( 26 Subsequent Events ASC Topic 855, Subsequent Events No. 2010 90, December 31, 2020 no December 31, 2020

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	(a) Principles of Consolidation The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary Wilson Bank. All significant intercompany accounts and transactions have been eliminated in consolidation.
Nature of Business [Policy Text Block]	(b) Nature of Operations Wilson Bank operates under a state bank charter and provides full banking services. As a state-chartered bank that is not twenty-seven
Use of Estimates, Policy [Policy Text Block]	(c) Estimates In preparing consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”), management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses, the valuation of deferred tax assets and other real estate, other-than-temporary impairments of securities, and the fair value of financial instruments.
Concentration Risk, Credit Risk, Policy [Policy Text Block]	(d) Significant Group Concentrations of Credit Risk Most of the Company’s activities are with customers located within Middle Tennessee. The types of securities in which the Company invests are described in note 3. 2. not one 2. Residential 1 4 d 23%, 36% and 21% and 24%, 38% and 20% of the December 31, 2020 2019
Financing Receivable [Policy Text Block]	(e) Loans The Company grants mortgage, commercial and consumer loans to customers. A substantial portion of the loan portfolio is represented by mortgage loans throughout Middle Tennessee. The ability of the Company’s debtors to honor their contracts is dependent upon the real estate and general economic conditions in this area. Loans that management has the intent and ability to hold for the foreseeable future or until maturity or pay-off generally are reported at their outstanding unpaid principal balances adjusted for unearned income, the allowance for loan losses, and any unamortized deferred fees or costs on originated loans, and premiums or discounts on purchased loans. Loan origination fees, net of certain direct origination costs, as well as premiums and discounts, are deferred and amortized on a straight line basis over the respective term of the loan. As part of its routine credit monitoring process, the Company performs regular credit reviews of the loan portfolio and loans receive risk ratings by the assigned credit officer, which are subject to validation by the Company's independent loan review department. Risk ratings are categorized as pass, special mention, substandard or doubtful. The Company believes that its categories follow those outlined by the FDIC, Wilson Bank's primary federal regulator. Generally the accrual of interest on mortgage and commercial loans is discontinued at the time the loan is 90 no 180 All interest accrued but not
Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block]	(f) Allowance for Loan Losses Management provides for loan losses by establishing an allowance. The allowance for loan losses is established as losses are estimated to have occurred through a provision for loan losses charged to earnings. Loan losses are charged against the allowance when management believes the uncollectability of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance. The allowance for loan losses is evaluated on a quarterly basis by management and is based upon management’s quarterly review of the collectability of the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may In assessing the adequacy of the allowance, we also consider the results of our ongoing independent loan review process. We undertake this process both to ascertain whether there are loans in the portfolio whose credit quality has weakened over time and to assist in our overall evaluation of the risk characteristics of the entire loan portfolio. Our loan review process includes the judgment of management, independent loan reviewers, and reviews that may third may In addition to the independent loan review process, the aforementioned risk ratings are subject to continual review by loan officers to determine that the appropriate risk ratings are being utilized in our allowance for loan loss process. Each risk rating is also subject to review by our independent loan review department. Currently, our independent loan review department targets reviews of 100% of existing loan relationships with aggregate debt of $2.0 million and greater and new loans with aggregate debt of $500,000 and greater. In addition, our independent loan review department targets particular portfolio segments, loans assigned to a particular lending officer, past due loans, and loans with four The allowance consists of allocated and general components. The allocated component relates to loans that are classified as impaired. For those loans that are individually classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The general component covers nonclassified loans and is based on historical charge-off experience, historical loan loss factors, loss experience of various loan segments, and other adjustments based on management’s assessment of internal or external influences on credit quality that are not A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not Large groups of smaller balance homogeneous loans are collectively evaluated for impairment. Accordingly, the Company does not
Investment, Policy [Policy Text Block]	(g) Debt and Equity Securities Certain debt securities that management has the positive intent and ability to hold to maturity are classified as “held-to-maturity” and recorded at amortized cost. Trading securities are recorded at fair value with changes in fair value included in earnings. Securities not may Other-than-temporary Impairment 1 2 3 no not not” not No December 31, 2020 2019
Federal Home Loan Bank Stock [Policy Text Block]	(h) Federal Home Loan Bank Stock The Company, as a member of the Federal Home Loan Bank (“FHLB”) Cincinnati system, is required to maintain an investment in capital stock of the FHLB. Based on redemption provisions of the FHLB, the stock has no December 31, 2020 $4.4 million.
Financing Receivable, Held-for-sale [Policy Text Block]	(i) Loans Held for Sale Mortgage loans held for sale are carried at fair value. The fair value of loans held for sale is determined using quoted prices for similar assets, adjusted for specific attributes of that loan.
Property, Plant and Equipment, Policy [Policy Text Block]	(j) Premises and Equipment Premises and equipment are stated at cost. Depreciation is computed primarily by the straight-line method over the estimated useful lives of the related assets. Gains or losses realized on items retired and otherwise disposed of are credited or charged to operations and cost and related accumulated depreciation are removed from the asset and accumulated depreciation accounts. Expenditures for major renovations and improvements of premises and equipment are capitalized and those for maintenance and repairs are charged to earnings as incurred.
Real Estate, Policy [Policy Text Block]	(k) Other Real Estate Assets acquired through, or in lieu of, loan foreclosure are held for sale and are initially recorded at fair value less the estimated cost to sell at the date the Company acquires the property, establishing a new cost basis. Subsequent to their acquisition by the Company, valuations of these assets are periodically performed by management, and the assets are carried at the lower of carrying amount or fair value less cost to sell. Revenue and expenses from operations and changes in the valuation allowance [i.e. any direct write-downs]
Goodwill and Intangible Assets, Policy [Policy Text Block]	(l) Goodwill and Intangible Assets The Financial Accounting Standards Board “FASB” Accounting Standards Codification “ASC” 350, Goodwill and Other Intangible Assets 350, not no December 31, 2020 December 31, 2019
Cash and Cash Equivalents, Policy [Policy Text Block]	(m) Cash and Cash Equivalents For purposes of reporting cash flows, cash and cash equivalents include cash on hand, interest-bearing deposits, amounts due from banks and Federal funds sold. Generally, Federal funds sold are purchased and sold for one
Property, Plant and Equipment, Impairment [Policy Text Block]	(n) Long-Term Assets Premises and equipment, intangible assets, and other long-term assets are reviewed for impairment when events indicate their carrying amount may not
Repurchase and Resale Agreements Policy [Policy Text Block]	(o) Securities Sold Under Agreements to Repurchase Substantially all repurchase agreement liabilities represent amounts advanced by various customers. Securities are pledged to cover these liabilities, which are not
Income Tax, Policy [Policy Text Block]	(p) Income Taxes The Company accounts for Income Taxes in accordance with income tax accounting guidance (FASB ASC 740, Income Taxes The income tax accounting guidance results in two Deferred income tax expense results from changes in deferred tax assets and liabilities between periods. Deferred tax assets are recognized if it is more likely than not, not" 50 not 50 not not not not The Company recognizes interest and penalties on income taxes as a component of income tax expense.
Derivatives, Policy [Policy Text Block]	(q) Derivatives Mortgage Banking Derivatives Commitments to fund mortgage loans (interest rate locks) to be sold into the secondary market and forward commitments for the future delivery of these mortgage loans are accounted for as free standing derivatives. The fair value of the interest rate lock is recorded at the time the commitment to fund the mortgage loan is executed and is adjusted for the expected exercise of the commitment before the loan is funded. Fair values of these mortgage derivatives are estimated based on changes in mortgage interest rates from the date the interest rate on the loan is locked. The Company enters into forward commitments for the future delivery of mortgage loans when interest rate locks are entered into, in order to hedge the change in interest rates resulting from its commitments to fund the loans. Changes in the fair values of these derivatives are included in net gains on sale of mortgage loans. Fair Value Hedges For derivative instruments that are designated and qualify as a fair value hedge, the gain or loss on the derivative instrument as well as the offsetting loss or gain on the hedged asset or liability attributable to the hedged risk are recognized in current earnings. The gain or loss on the derivative instrument is presented on the same income statement line item as the earnings effect of the hedged item. The Company utilizes interest rate swaps designated as fair value hedges to mitigate the effect of changing interest rates on the fair values of fixed rate loans. The hedging strategy on loans converts the fixed interest rates to LIBOR-based variable interest rates. These derivatives are designated as partial term hedges of selected cash flows covering specified periods of time prior to the maturity dates of the hedged loans.
Share-based Payment Arrangement [Policy Text Block]	(r) Equity-Based Incentives Stock compensation accounting guidance (FASB ASC 718, Compensation—Stock Compensation” not not The stock compensation accounting guidance requires that compensation cost for all stock awards be calculated and recognized over the employees’ service period, generally defined as the vesting period. For awards with graded-vesting, compensation cost is recognized on a straight-line basis over the requisite service period for the entire award. The Company uses the Black-Scholes option pricing model to estimate the fair value of stock options and cash-settled SARs.
Advertising Cost [Policy Text Block]	(s) Advertising Costs Advertising costs are expensed as incurred by the Company and totaled $2,487,000 , $2,498,000 and $2,552,000 f 2020, 2019 2018
Earnings Per Share, Policy [Policy Text Block]	(t) Earnings Per Share Basic earnings per share represents income available to common stockholders divided by the weighted-average number of common shares outstanding during the period. Diluted earnings per share reflects additional potential common shares that would have been outstanding if dilutive potential common shares had been issued, as well as any adjustment to income that would result from the assumed issuance. Potential common shares that may
Fair Value of Financial Instruments, Policy [Policy Text Block]	(u) 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 22
Reclassification, Comparability Adjustment [Policy Text Block]	(v) Reclassification Certain reclassifications have been made to the 2019 2018 2020
Off-Balance-Sheet Credit Exposure, Policy [Policy Text Block]	(w) Off-Balance-Sheet Financial Instruments In the ordinary course of business, Wilson Bank has entered into off-balance-sheet financial instruments consisting of commitments to extend credit, commitments under credit card arrangements, commercial letters of credit and standby letters of credit. Such financial instruments are recorded in the financial statements when they are funded or related fees are incurred or received.
New Accounting Pronouncements, Policy [Policy Text Block]	( x Accounting Standard Updates ASU 2016 13, 326 2016 13 2016 13 2016 13 January 1, 2020. March 27, 2020, 2016 13, 60 19 December 31, 2020, December 27, 2020, 2016 13, January 1, 2022. January 1, 2022. 2016 13 January 1, 2020. December 31, 2020, 2016 13 December 31, 2020. third 2016 13 2016 13 not March 27, 2020 three three 75% 50% 25% not 2016 13 not ASU 2017 04, 350 2017 04 2 2017 04, not 2017 04 January 1, 2020, not ASU 2018 13, 820 2018 13 820. no 2018 13 January 1, 2020 not ASU 2020 4, 848 2020 4 2020 04 not December 31, 2022, December 31, 2022, 2020 4 December 31, 2022. 2020 4 not Other than those previously discussed, there were no

Note 2 - Loans and Allowance _2

Note 2 - Loans and Allowance for Loan Losses (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	In Thousands 2020 2019 Mortgage loans on real estate: Residential 1-4 family $ 535,994 511,250 Multifamily 111,646 97,104 Commercial 837,766 793,379 Construction 488,626 425,185 Farmland 15,429 19,268 Second mortgages 8,433 10,760 Equity lines of credit 78,889 72,379 Total mortgage loans on real estate 2,076,783 1,929,325 Commercial loans 172,811 98,265 Agricultural loans 1,206 1,569 Consumer installment loans: Personal 66,193 50,532 Credit cards 4,324 4,302 Total consumer installment loans 70,517 54,834 Other loans 9,283 9,049 2,330,600 2,093,042 Net deferred loan fees (9,295 ) (7,141 ) Total loans 2,321,305 2,085,901 Less: Allowance for loan losses (38,539 ) (28,726 ) Loans, net $ 2,282,766 2,057,175
Financing Receivable, Nonaccrual [Table Text Block]	In Thousands 2020 2019 Residential 1-4 family $ 1,022 949 Multifamily — — Commercial real estate 311 1,661 Construction — — Farmland — — Second mortgages — — Equity lines of credit — — Commercial — — Agricultural, installment and other — — Total $ 1,333 2,610
Financing Receivable Credit Quality Indicators [Table Text Block]	In Thousands Agricultural, Residential 1-4 Commercial Second Equity Lines Installment and Family Multifamily Real Estate Construction Farmland Mortgages of Credit Commercial Other Total Credit Risk Profile by Internally Assigned Grade December 31, 2020 Pass $ 529,546 111,646 837,028 488,571 15,301 8,148 78,565 172,779 80,770 2,322,354 Special mention 2,745 — 149 27 79 169 314 — 156 3,639 Substandard 3,703 — 589 28 49 116 10 32 80 4,607 Total $ 535,994 111,646 837,766 488,626 15,429 8,433 78,889 172,811 81,006 2,330,600 December 31, 2019 Pass $ 503,861 97,104 791,610 424,517 19,106 10,458 72,237 98,243 65,255 2,082,391 Special mention 2,923 — — 635 103 174 — — 101 3,936 Substandard 4,466 — 1,769 33 59 128 142 22 96 6,715 Total $ 511,250 97,104 793,379 425,185 19,268 10,760 72,379 98,265 65,452 2,093,042
Financing Receivable, Past Due [Table Text Block]	In Thousands 30-59 Days Past Due 60-89 Days Past Due Nonaccrual and Greater Than 90 Days Total Nonaccrual and Past Due Current Total Loans Recorded Investment Greater Than 90 Days and Accruing December 31, 2020 Residential 1-4 family $ 2,634 511 1,818 4,963 531,031 535,994 $ 796 Multifamily — — — — 111,646 111,646 — Commercial real estate — — 460 460 837,306 837,766 149 Construction 768 — 44 812 487,814 488,626 44 Farmland — — — — 15,429 15,429 — Second mortgages 265 — — 265 8,168 8,433 — Equity lines of credit 31 302 — 333 78,556 78,889 — Commercial 114 104 — 218 172,593 172,811 — Agricultural, installment and other 363 81 60 504 80,502 81,006 60 Total $ 4,175 998 2,382 7,555 2,323,045 2,330,600 $ 1,049 December 31, 2019 Residential 1-4 family $ 4,760 799 2,336 7,895 503,355 511,250 $ 1,387 Multifamily — — — — 97,104 97,104 — Commercial real estate 500 — 1,661 2,161 791,218 793,379 — Construction 1,535 147 594 2,276 422,909 425,185 594 Farmland 57 — 8 65 19,203 19,268 8 Second mortgages — — 100 100 10,660 10,760 100 Equity lines of credit 143 — 372 515 71,864 72,379 372 Commercial 71 30 — 101 98,164 98,265 — Agricultural, installment and other 517 116 46 679 64,773 65,452 46 Total $ 7,583 1,092 5,117 13,792 2,079,250 2,093,042 $ 2,507
Financing Receivable, Allowance for Credit Loss [Table Text Block]	In Thousands Agricultural, Residential 1-4 Commercial Second Equity Lines Installment and Family Multifamily Real Estate Construction Farmland Mortgages of Credit Commercial Other Total December 31, 2020 Allowance for loan losses: Beginning balance $ 7,144 1,117 11,114 5,997 187 123 889 1,044 1,111 28,726 Provision 920 424 5,388 1,766 (33 ) (37 ) 74 343 851 9,696 Charge-offs — — — — — — (7 ) (9 ) (898 ) (914 ) Recoveries 34 — 300 173 — 19 41 — 464 1,031 Ending balance $ 8,098 1,541 16,802 7,936 154 105 997 1,378 1,528 38,539 Ending balance individually evaluated for impairment $ 594 — 148 — — — — — — 742 Ending balance collectively evaluated for impairment $ 7,504 1,541 16,654 7,936 154 105 997 1,378 1,528 37,797 Loans: Ending balance $ 535,994 111,646 837,766 488,626 15,429 8,433 78,889 172,811 81,006 2,330,600 Ending balance individually evaluated for impairment $ 2,399 — 970 — — — — — — 3,369 Ending balance collectively evaluated for impairment $ 533,595 111,646 836,796 488,626 15,429 8,433 78,889 172,811 81,006 2,327,231 In Thousands Agricultural, Residential 1-4 Commercial Second Equity Lines Installment and Family Multifamily Real Estate Construction Farmland Mortgages of Credit Commercial Other Total December 31, 2019 Allowance for loan losses: Beginning balance $ 6,297 1,481 9,753 7,084 221 118 731 622 867 27,174 Provision 838 (364 ) 1,484 (1,510 ) (34 ) 5 158 422 1,041 2,040 Charge-offs (15 ) — (173 ) — — — — (15 ) (1,160 ) (1,363 ) Recoveries 24 — 50 423 — — — 15 363 875 Ending balance $ 7,144 1,117 11,114 5,997 187 123 889 1,044 1,111 28,726 Ending balance individually evaluated for impairment $ 795 — 341 — — — — — — 1,136 Ending balance collectively evaluated for impairment $ 6,349 1,117 10,773 5,997 187 123 889 1,044 1,111 27,590 Loans: Ending balance $ 511,250 97,104 793,379 425,185 19,268 10,760 72,379 98,265 65,452 2,093,042 Ending balance individually evaluated for impairment $ 2,569 — 2,471 — — — — — — 5,040 Ending balance collectively evaluated for impairment $ 508,681 97,104 790,908 425,185 19,268 10,760 72,379 98,265 65,452 2,088,002
Impaired Financing Receivables [Table Text Block]	In Thousands Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized December 31, 2020 With no related allowance recorded: Residential 1-4 family $ 1,162 1,507 — 395 26 Multifamily — — — — — Commercial real estate 311 311 — 311 — Construction — — — — — Farmland — — — — — Second mortgages — — — — — Equity lines of credit — — — — — Commercial — — — — — Agricultural, installment and other — — — — — $ 1,473 1,818 — 706 26 With allowance recorded: Residential 1-4 family $ 1,242 1,240 594 1,273 66 Multifamily — — — — — Commercial real estate 662 659 148 676 22 Construction — — — — — Farmland — — — — — Second mortgages — — — — — Equity lines of credit — — — — — Commercial — — — — — Agricultural, installment and other — — — — — $ 1,904 1,899 742 1,949 88 Total: Residential 1-4 family $ 2,404 2,747 594 1,668 92 Multifamily — — — — — Commercial real estate 973 970 148 987 22 Construction — — — — — Farmland — — — — — Second mortgages — — — — — Equity lines of credit — — — — — Commercial — — — — — Agricultural, installment and other — — — — — $ 3,377 3,717 742 2,655 114 In Thousands Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized December 31, 2019 With no related allowance recorded: Residential 1-4 family $ 1,090 1,464 — 1,090 99 Multifamily — — — — — Commercial real estate 951 1,124 — 910 17 Construction — — — — — Farmland — — — — — Second mortgages — — — — — Equity lines of credit — — — — — Commercial — — — — — Agricultural, installment and other — — — — — $ 2,041 2,588 — 2,000 116 With allowance recorded: Residential 1-4 family $ 1,489 1,480 795 1,590 83 Multifamily — — — — — Commercial real estate 1,522 1,520 341 2,015 17 Construction — — — — — Farmland — — — — — Second mortgages — — — — — Equity lines of credit — — — — — Commercial — — — — — Agricultural, installment and other — — — — — $ 3,011 3,000 1,136 3,605 100 Total: Residential 1-4 family $ 2,579 2,944 795 2,680 182 Multifamily — — — — — Commercial real estate 2,473 2,644 341 2,925 34 Construction — — — — — Farmland — — — — — Second mortgages — — — — — Equity lines of credit — — — — — Commercial — — — — — Agricultural, installment and other — — — — — $ 5,052 5,588 1,136 5,605 216
Financing Receivable, Troubled Debt Restructuring [Table Text Block]	2020 2019 Performing TDRs $ 2,147 3,080 Nonperforming TDRs 529 1,467 Total TDRs $ 2,676 4,547 December 31, 2020 December 31, 2019 Number of Contracts Pre Modification Outstanding Recorded Investment Post Modification Outstanding Recorded Investment, Net of Related Allowance Number of Contracts Pre Modification Outstanding Recorded Investment Post Modification Outstanding Recorded Investment, Net of Related Allowance Residential 1-4 family — $ — $ — 1 $ 1,338 $ 619 Multifamily — — — — — — Commercial real estate 1 111 132 4 2,677 2,399 Construction — — — — — — Farmland — — — — — — Second mortgages — — — — — — Equity lines of credit — — — — — — Commercial — — — — — — Agricultural, installment and other — — — — — — Total 1 $ 111 $ 132 5 $ 4,015 $ 3,018
Schedule of Loans Receivable to Related Parties [Table Text Block]	In Thousands December 31, 2020 2019 Balance, January 1 $ 12,878 13,019 New loans and renewals during the year 11,153 31,548 Repayments (including loans paid by renewal) during the year (16,356 ) (31,689 ) Balance, December 31 $ 7,675 12,878

Note 3 - Debt and Equity Secu_2

Note 3 - Debt and Equity Securities (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Marketable Securities [Table Text Block]	Securities Available-For-Sale In Thousands Gross Unrealized Gross Unrealized Estimated Market Amortized Cost Gains Losses Value Government-sponsored enterprises (GSEs) $ 125,712 328 135 125,905 Mortgage-backed securities 258,774 5,636 620 263,790 Asset-backed securities 36,394 582 19 36,957 Corporate bonds 2,500 100 — 2,600 Obligations of states and political subdivisions 147,462 4,229 400 151,291 $ 570,842 10,875 1,174 580,543 Securities Available-For-Sale In Thousands Gross Unrealized Gross Unrealized Estimated Market Amortized Cost Gains Losses Value Government-sponsored enterprises (GSEs) $ 59,735 48 204 59,579 Mortgage-backed securities 265,648 2,300 635 267,313 Asset-backed securities 27,531 1 303 27,229 Corporate bonds — — — — Obligations of states and political subdivisions 67,293 559 828 67,024 $ 420,207 2,908 1,970 421,145
Investments Classified by Contractual Maturity Date [Table Text Block]	In Thousands Securities Available-For-Sale Amortized Cost Estimated Market Value Due in one year or less $ 1,196 1,198 Due after one year through five years 26,325 26,542 Due after five years through ten years 107,341 108,184 Due after ten years 140,812 143,872 275,674 279,796 Mortgage and asset-backed securities 295,168 300,747 $ 570,842 580,543
Schedule of Realized Gain (Loss) [Table Text Block]	In Thousands 2020 2019 2018 Gross proceeds $ 54,870 37,325 39,857 Gross realized gains $ 901 75 102 Gross realized losses (19 ) (343 ) (752 ) Net realized gains (losses) $ 882 (268 ) (650 )
Schedule of Unrealized Loss on Investments [Table Text Block]	In Thousands, Except Number of Securities Less than 12 Months 12 Months or More Total Number of Number of Unrealized Securities Unrealized Securities Unrealized 2020 Fair Value Losses Included Fair Value Losses Included Fair Value Losses Available-for-Sale Securities: Debt securities: GSEs $ 47,991 $ 135 18 $ — $ — — $ 47,991 $ 135 Mortgage-backed securities 78,381 573 29 6,776 47 12 85,157 620 Asset-backed securities 4,950 19 3 — — — 4,950 19 Corporate bonds — — — — — — — — Obligations of states and political subdivisions 44,061 394 33 689 6 1 44,750 400 $ 175,383 $ 1,121 83 $ 7,465 $ 53 13 $ 182,848 $ 1,174 In Thousands, Except Number of Securities Less than 12 Months 12 Months or More Total Number of Number of Unrealized Securities Unrealized Securities Unrealized 2019 Fair Value Losses Included Fair Value Losses Included Fair Value Losses Available-for-Sale Securities: Debt securities: GSEs $ 16,507 $ 114 5 $ 24,658 $ 90 9 $ 41,165 $ 204 Mortgage-backed securities 45,862 182 21 56,917 453 52 102,779 635 Asset-backed securities 17,807 161 10 7,317 142 4 25,124 303 Corporate bonds — — — — — — — — Obligations of states and political subdivisions 30,423 783 26 3,858 45 10 34,281 828 $ 110,599 $ 1,240 62 $ 92,750 $ 730 75 $ 203,349 $ 1,970

Note 4 - Leases (Tables)

Note 4 - Leases (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Assets and Liabilities, Lessee [Table Text Block]	Lease right-of-use assets Classification December 31, 2020 December 31, 2019 Operating lease right-of-use assets Other Assets $ 3,825 2,573 Lease liabilities Classification December 31, 2020 December 31, 2019 Operating lease liabilities Other Liabilities $ 3,947 2,614
Lease, Cost [Table Text Block]	In Thousands 2020 2019 Operating lease cost $ 535 372 Short-term lease cost 4 21 Net lease cost $ 539 393 2020 2019 Operating Leases Weighted average remaining lease term (in years) 11.31 11.79 Weighted average discount rate 4.00 % 4.00 % In Thousands 2020 2019 Operating cash flows related to operating leases $ 426 360
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	In Thousands 2020 2021 $ 494 2022 463 2023 471 2024 485 2025 490 Thereafter 2,521 Total undiscounted lease payments 4,924 Less: imputed interest (977 ) Net lease liabilities $ 3,947

Note 6 - Premises and Equipme_2

Note 6 - Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Property, Plant and Equipment [Table Text Block]	In Thousands 2020 2019 Land $ 17,093 17,093 Buildings 46,584 46,389 Leasehold improvements 573 533 Furniture and equipment 13,861 13,000 Automobiles 175 243 Construction-in-progress 317 1,339 78,603 78,597 Less accumulated depreciation (20,401 ) (18,302 ) $ 58,202 60,295

Note 7 - Goodwill (Tables)

Note 7 - Goodwill (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Goodwill [Table Text Block]	In Thousands 2020 2019 Goodwill: Balance at January 1, $ 4,805 4,805 Goodwill acquired during year — — Impairment loss — — Balance at December 31, $ 4,805 4,805

Note 8 - Deposits (Tables)

Note 8 - Deposits (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Deposit Liabilities, Type [Table Text Block]	In Thousands 2020 2019 Demand deposits $ 391,360 284,611 Savings accounts 201,984 140,270 Negotiable order of withdrawal accounts 771,195 558,745 Money market demand accounts 984,677 801,986 Certificates of deposit $250,000 or greater 112,696 131,899 Other certificates of deposit 425,299 425,222 Individual retirement accounts $250,000 or greater 10,323 10,646 Other individual retirement accounts 63,061 64,226 $ 2,960,595 2,417,605
Time Deposit Maturities [Table Text Block]	(In Thousands) Maturity Total 2021 $ 342,291 2022 138,959 2023 87,243 2024 23,157 2025 19,271 Thereafter 458 $ 611,379

Note 9 - Federal Home Loan Ba_2

Note 9 - Federal Home Loan Bank Advances (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Federal Home Loan Bank, Advances, by Branch of FHLB Bank [Table Text Block]	(In Thousands) Maturity Total 2021 $ 1,350 2022 1,350 2023 788 2024 150 2025 — Thereafter — Total $ 3,638

Note 10 - Non-interest Income_2

Note 10 - Non-interest Income and Non-interest Expense (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Noninterest Income and Noninterest Expense [Table Text Block]	In Thousands 2020 2019 2018 Non-interest income: Service charges on deposits $ 5,659 6,952 6,799 Brokerage income 4,837 4,411 4,255 Debit and credit card interchange income 9,187 8,301 7,325 Other fees and commissions 1,540 1,521 2,124 BOLI and annuity earnings 823 810 841 Security gain (loss), net 882 (268 ) (650 ) Fees and gains on sales of mortgage loans 9,560 6,802 4,639 Gain (loss) on sale of other real estate, net 658 (48 ) (80 ) Loss on sale of fixed assets, net (63 ) (128 ) (2 ) Loss on sale of other assets, net (4 ) (4 ) (3 ) Other income 61 — — $ 33,140 28,349 25,248 In Thousands 2020 2019 2018 Non-interest expense: Employee salaries and benefits $ 45,661 42,541 39,590 Equity-based compensation 1,180 786 1,237 Occupancy expenses 5,216 4,789 4,403 Furniture and equipment expenses 3,267 3,110 2,767 Data processing expenses 5,101 4,495 2,900 Advertising expenses 2,487 2,498 2,552 ATM & interchange fees 3,880 3,439 3,091 Accounting, legal & consulting expenses 909 1,382 977 FDIC insurance 598 373 843 Directors’ fees 634 586 543 Other operating expenses 11,986 10,629 10,177 $ 80,919 74,628 69,080

Note 11 - Income Taxes (Tables)

Note 11 - Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	In Thousands 2020 2019 Deferred tax asset: Federal $ 9,500 7,444 State 2,913 2,240 12,413 9,684 Deferred tax liability: Federal (4,000 ) (2,666 ) State (1,324 ) (882 ) (5,324 ) (3,548 ) Net deferred tax asset $ 7,089 6,136 In Thousands 2020 2019 Financial statement allowance for loan losses in excess of tax allowance $ 9,840 7,283 Excess of depreciation deducted for tax purposes over the amounts deducted in the financial statements (2,461 ) (2,976 ) Financial statement deduction for deferred compensation in excess of deduction for tax purposes 1,253 1,193 Writedown of other real estate not deductible for income tax purposes until sold — 157 Financial statement income on FHLB stock dividends not recognized for tax purposes (327 ) (327 ) Unrealized gain on securities available-for-sale (2,535 ) (245 ) Equity based compensation 854 625 Other items, net 465 426 Net deferred tax asset $ 7,089 6,136
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	In Thousands Federal State Total 2020 Current $ 11,383 1,539 12,922 Deferred (2,503 ) (801 ) (3,304 ) Total $ 8,880 738 9,618 2019 Current $ 10,134 1,411 11,545 Deferred (335 ) (143 ) (478 ) Total $ 9,799 1,268 11,067 2018 Current $ 8,310 721 9,031 Deferred (136 ) (112 ) (248 ) Total $ 8,174 609 8,783
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	In Thousands 2020 2019 2018 Computed “expected” tax expense $ 10,103 9,893 8,689 State income taxes, net of Federal income tax benefit 552 1,056 432 Tax exempt interest, net of interest expense exclusion (245 ) (186 ) (226 ) Earnings on cash surrender value of life insurance (173 ) (170 ) (177 ) Expenses not deductible for tax purposes 14 37 16 Equity based compensation (6 ) 15 (39 ) Other (627 ) 422 88 $ 9,618 11,067 8,783

Note 13 - Financial Instrumen_2

Note 13 - Financial Instruments with Off-balance-sheet Risk (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block]	In Thousands Contract or Notional Amount 2020 2019 Financial instruments whose contract amounts represent credit risk: Unused commitments to extend credit $ 851,196 632,686 Standby letters of credit 81,952 72,901 Total $ 933,148 705,587

Note 17 - Regulatory Matters _2

Note 17 - Regulatory Matters and Restrictions on Dividends (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]	Actual Regulatory Minimum Capital Requirement with Basel III Capital Conservation Buffer Amount Ratio Amount Ratio (dollars in thousands) December 31, 2019 Total capital to risk weighted assets: Consolidated $ 360,645 15.0 % $ 253,215 10.5 % Wilson Bank 359,576 14.9 252,675 10.5 Tier 1 capital to risk weighted assets: Consolidated 331,485 13.7 204,984 8.5 Wilson Bank 330,416 13.7 204,547 8.5 Common equity Tier 1 capital to risk weighted assets: Consolidated 331,485 13.7 168,810 7.0 Wilson Bank 330,416 13.7 168,451 7.0 Tier 1 capital to average assets: Consolidated 331,485 12.4 106,565 4.0 Wilson Bank 330,416 11.9 110,764 4.0
Community Bank Leverage Ratios [Table Text Block]	Regulatory Minimum Capital Requirement Actual Community Bank Leverage Ratio Amount Ratio Amount Ratio (dollars in thousands) December 31, 2020 Community Bank Leverage Ratio: Consolidated $ 368,150 11.2 % $ 230,993 7.0 % Wilson Bank 364,976 11.1 230,929 7.0

Note 19 - Equity Incentive Pl_2

Note 19 - Equity Incentive Plan (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]	2020 2019 2018 Expected dividends 1.56 % 1.60 % 1.22 % Expected term (in years) 7.38 7.14 9.35 Expected stock price volatility 31 % 25 % 24 % Risk-free rate 0.52 % 1.90 % 2.83 %
Share-based Payment Arrangement, Option, Activity [Table Text Block]	2020 2019 2018 Weighted Average Weighted Average Weighted Average Shares Exercise Price Shares Exercise Price Shares Exercise Price Outstanding at beginning of year 273,039 $ 41.19 277,820 $ 40.11 285,780 $ 39.31 Granted 43,833 55.72 17,833 51.16 21,666 46.59 Exercised (24,881 ) 37.84 (22,614 ) 35.78 (22,460 ) 37.07 Forfeited or expired (7,400 ) 41.70 — — (7,166 ) 37.53 Outstanding at end of year 284,591 $ 43.71 273,039 $ 41.19 277,820 $ 40.11 Options and cash-settled SARs exercisable at year end 151,695 $ 40.89 122,932 $ 40.19 94,951 $ 39.14
Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]	Options and Cash-Settled SARs Outstanding Options and Cash-Settled SARs Exercisable Range of Exercise Prices Number Outstanding at 12/31/20 Weighted Average Exercise Price Weighted Average Remaining Contractual Term (In Years) Number Outstanding at 12/31/20 Weighted Average Exercise Price Weighted Average Remaining Contractual Term (In Years) $29.81 - $44.75 205,692 $ 40.26 4.96 141,195 $ 40.34 4.64 $46.00 - $69.00 78,899 $ 52.68 8.67 10,500 $ 48.32 7.53 284,591 151,695 Aggregate intrinsic value (in thousands) $ 4,281 $ 2,709

Note 20 - Earnings Per Share (T

Note 20 - Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Years Ended December 31, 2020 2019 2018 Basic EPS Computation: Numerator – Earnings available to common stockholders $ 38,492 36,044 32,594 Denominator – Weighted average number of common shares outstanding 10,927,065 10,743,269 10,564,172 Basic earnings per common share $ 3.52 3.36 3.09 Diluted EPS Computation: Numerator – Earnings available to common stockholders $ 38,492 36,044 32,594 Denominator – Weighted average number of common shares outstanding 10,927,065 10,743,269 10,564,172 Dilutive effect of stock options 26,681 18,198 8,049 10,953,746 10,761,467 10,572,221 Diluted earnings per common share $ 3.51 3.35 3.08

Note 21 - Derivatives (Tables)

Note 21 - Derivatives (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Summary of Fair Value Hedge Relationships [Table Text Block]	December 31, 2020 December 31, 2019 Balance Sheet Location Weighted Average Remaining Maturity (In Years) Weighted Average Pay Rate Receive Rate Notional Amount Estimated Fair Value Notional Amount Estimated Fair Value Liability derivative Interest rate swap agreements - loans Other liabilities 9.42 0.65 % 1 month LIBOR $ 29,575 (51 ) — —
Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]	Carrying Amount of the Hedged Assets Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets Line item on the balance sheet December 31, 2020 December 31, 2019 December 31, 2020 December 31, 2019 Loans $ 29,575 — (158 ) —
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]	In Thousands 2020 2019 Notional Amount Fair Value Notional Amount Fair Value Included in other assets (liabilities): Interest rate contracts for customers $ 20,981 714 10,307 328 Forward contracts related to mortgage loans held-for-sale 21,250 (157 ) 14,000 (23 )
Interest Rate Swap [Member]
Notes Tables
Derivative Instruments, Gain (Loss) [Table Text Block]	Twelve Months Ended December 31, Gain (loss) on fair value hedging relationship 2020 2019 Interest rate swap agreements - loans: Hedged items $ (158 ) — Derivative designated as hedging instruments (51 ) —
Mortgage Banking Derivatives [Member]
Notes Tables
Derivative Instruments, Gain (Loss) [Table Text Block]	In Thousands 2020 2019 Interest rate contracts for customers $ 386 (7 ) Forward contracts related to mortgage loans held for sale and interest rate contracts (134 ) 65

Note 22 - Disclosures About F_2

Note 22 - Disclosures About Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	Measured on a Recurring Basis Total Carrying Value in the Consolidated Balance Sheet Quoted Market Prices in an Active Market (Level 1) Models with Significant Observable Market Parameters (Level 2) Models with Significant Unobservable Market Parameters (Level 3) December 31, 2020 Hedged Loans $ 29,417 — 29,417 — Investment securities available-for-sale: U.S. Government sponsored enterprises 125,905 — 125,905 — Mortgage-backed securities 263,790 — 263,790 — Asset-backed securities 36,957 — 36,957 — Corporate bonds 2,600 — 2,600 — State and municipal securities 151,291 — 151,291 — Total investment securities available-for-sale 580,543 — 580,543 — Mortgage loans held for sale 19,474 — 19,474 — Derivatives 714 — 714 — Bank owned life insurance 35,197 — — 35,197 Total assets $ 665,345 --- 630,148 35,197 Derivatives $ 208 — 208 — Total liabilities $ 208 — 208 — Measured on a Recurring Basis Total Carrying Value in the Consolidated Balance Sheet Quoted Market Prices in an Active Market (Level 1) Models with Significant Observable Market Parameters (Level 2) Models with Significant Unobservable Market Parameters (Level 3) December 31, 2019 Hedged Loans $ — — — — Investment securities available-for-sale: U.S. Government sponsored enterprises 59,579 — 59,579 — Mortgage-backed securities 267,313 — 267,313 — Asset-backed securities 27,229 — 27,229 — Corporate bonds — — — — State and municipal securities 67,024 — 67,024 — Total investment securities available-for-sale 421,145 — 421,145 — Mortgage loans held for sale 18,179 — 18,179 — Derivatives 328 — 328 — Bank owned life insurance 31,762 — — 31,762 Total assets $ 471,414 --- 439,652 31,762 Derivatives $ 23 — 23 — Total liabilities $ 23 — 23 —
Fair Value Measurements, Nonrecurring [Table Text Block]	Measured on a Non-Recurring Basis Total Carrying Value in the Consolidated Balance Sheet Quoted Market Prices in an Active Market (Level 1) Models with Significant Observable Market Parameters (Level 2) Models with Significant Unobservable Market Parameters (Level 3) December 31, 2020 Other real estate owned $ — — — — Impaired loans, net (¹) 2,635 — — 2,635 Total $ 2,635 — — 2,635 December 31, 2019 Other real estate owned $ 697 — — 697 Impaired loans, net (¹) 3,916 — — 3,916 Total $ 4,613 — — 4,613
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]	Valuation Techniques (2) Significant Unobservable Inputs Range (Weighted Average) Impaired loans Appraisal Estimated costs to sell 10 % Other real estate owned Appraisal Estimated costs to sell 10 % (2) The fair value is generally determined through independent appraisals of the underlying collateral, which may include Level 3 inputs that are not identifiable, or by using the discounted cash flow method if the loan is not collateral dependent.
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]	For the Year Ended December 31, 2020 2019 Other Assets Other Assets Fair value, January 1 $ 31,762 $ 30,952 Total realized gains included in income 823 810 Change in unrealized gains/losses included in other comprehensive income for assets and liabilities still held at December 31 — — Purchases, issuances and settlements, net 2,612 — Transfers out of Level 3 — — Fair value, December 31 $ 35,197 $ 31,762 Total realized gains included in income related to financial assets and liabilities still on the consolidated balance sheet at December 31 $ 823 $ 810
Fair Value, by Balance Sheet Grouping [Table Text Block]	(in Thousands) Carrying/Notional Amount Estimated Fair Value (¹) Quoted Market Prices in an Active Market (Level 1) Models with Significant Observable Market Parameters (Level 2) Models with Significant Unobservable Market Parameters (Level 3) December 31, 2020 Financial assets: Cash and cash equivalents $ 338,856 338,856 338,856 — — Loans, net 2,282,766 2,302,530 — — 2,302,530 Restricted equity securities 5,089 NA NA NA NA Accrued interest receivable 7,516 7,516 1 2,210 5,305 Financial liabilities: Deposits 2,960,595 2,796,339 — — 2,796,339 Federal Home Loan Bank borrowings 3,638 3,755 — — 3,755 Accrued interest payable 3,051 3,051 — — 3,051 December 31, 2019 Financial assets: Cash and cash equivalents $ 159,770 159,770 159,770 — — Loans, net 2,057,175 2,053,212 — — 2,053,212 Restricted equity securities 4,680 NA NA NA NA Accrued interest receivable 5,945 5,945 5 1,647 4,293 Financial liabilities: Deposits 2,417,605 2,210,038 — — 2,210,038 Federal Home Loan Bank borrowings 23,613 23,860 — — 23,860 Accrued interest payable 3,814 3,814 — — 3,814

Note 24 - Wilson Bank Holding_2

Note 24 - Wilson Bank Holding Company - Parent Company Financial Information (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Condensed Balance Sheet [Table Text Block]	Dollars In Thousands 2020 2019 ASSETS Cash $ 4,381 * 1,899 * Investment in wholly-owned commercial bank subsidiary 376,947 335,915 Deferred income taxes 854 625 Refundable income taxes 242 132 Total assets $ 382,424 338,571 LIABILITIES AND STOCKHOLDERS’ EQUITY Stock appreciation rights payable $ 2,303 1,587 Total liabilities 2,303 1,587 Stockholders’ equity: Common stock, par value $ 2.00 50,000,000 10,993,404 10,792,999 21,987 21,586 Additional paid-in capital 93,034 82,249 Retained earnings 257,935 232,456 Net unrealized gains on available-for-sale securities, net of income taxes of $ 2,536 245 7,165 693 Total stockholders’ equity 380,121 336,984 Total liabilities and stockholders’ equity $ 382,424 338,571
Condensed Income Statement [Table Text Block]	Dollars In Thousands 2020 2019 2018 Income: Dividends from commercial bank subsidiary $ 5,000 2,800 3,000 Other income 61 — — 5,061 2,800 3,000 Expenses: Directors’ fees 335 283 254 Other 1,264 885 1,351 1,599 1,168 1,605 Income before Federal income tax benefits and equity in undistributed earnings of commercial bank subsidiary 3,462 1,632 1,395 Federal income tax benefits 471 287 468 3,933 1,919 1,863 Equity in undistributed earnings of commercial bank subsidiary 34,559 * 34,125 * 30,731 * Net earnings $ 38,492 36,044 32,594
Condensed Cash Flow Statement [Table Text Block]	Dollars In Thousands 2020 2019 2018 Cash flows from operating activities: Other income received $ 61 — — Cash paid to suppliers and other (418 ) (383 ) (367 ) Tax benefits received 131 177 181 Net cash used in operating activities (226 ) (206 ) (186 ) Cash flows from investing activities: Dividends received from commercial bank subsidiary 5,000 2,800 3,000 Net cash provided by investing activities 5,000 2,800 3,000 Cash flows from financing activities: Payments made to stock appreciation rights holders (53 ) (9 ) (61 ) Dividends paid (13,013 ) (11,725 ) (9,447 ) Proceeds from sale of stock pursuant to dividend reinvestment plan 10,056 9,134 7,470 Proceeds from exercise of common shares 718 775 394 Repurchase of stock options — (1,629 ) — Net cash used in financing activities (2,292 ) (3,454 ) (1,644 ) Net increase (decrease) in cash and cash equivalents 2,482 (860 ) 1,170 Cash and cash equivalents at beginning of year 1,899 2,759 1,589 Cash and cash equivalents at end of year $ 4,381 1,899 2,759 Dollars in Thousands 2020 2019 2018 Reconciliation of net earnings to net cash used in operating activities: Net earnings $ 38,492 36,044 32,594 Adjustments to reconcile net earnings to net cash used in operating activities: Equity in earnings of commercial bank subsidiary (39,559 ) (36,925 ) (33,731 ) Decrease (increase) in refundable income taxes (110 ) 45 5 Increase in deferred taxes (229 ) (156 ) (291 ) Share based compensation expense 1,180 786 1,237 Total adjustments (38,718 ) (36,250 ) (32,780 ) Net cash used in operating activities $ (226 ) (206 ) (186 )

Note 25 - Quarterly Financial_2

Note 25 - Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Quarterly Financial Information [Table Text Block]	(In Thousands, except per share data) 2020 2019 2018 Fourth Third Second First Fourth Third Second First Fourth Third Second First Quarter Quarter Quarter Quarter Quarter Quarter Quarter Quarter Quarter Quarter Quarter Quarter Interest income $ 30,351 30,961 31,569 30,087 $ 29,897 30,329 29,567 28,284 $ 27,585 26,298 25,548 24,094 Interest expense 3,969 4,112 4,308 4,994 5,522 5,991 5,923 5,211 4,606 3,656 3,097 2,659 Net interest income 26,382 26,849 27,261 25,093 24,375 24,338 23,644 23,073 22,979 22,642 22,451 21,435 Provision for loan losses 3,065 1,038 4,124 1,469 686 167 154 1,033 1,097 1,088 1,090 1,023 Earnings before income taxes 10,771 14,669 11,313 11,357 10,222 13,556 12,451 10,882 10,708 10,718 9,798 10,153 Net earnings 8,902 11,532 9,027 9,031 7,972 10,266 9,516 8,290 9,833 7,972 7,309 7,480 Basic earnings per common share 0.81 1.05 0.83 0.83 0.74 0.95 0.89 0.77 0.93 0.75 0.69 0.71 Diluted earnings per common share 0.81 1.05 0.83 0.83 0.74 0.95 0.89 0.77 0.92 0.75 0.69 0.71

Note 1 - Summary of Significa_2

Note 1 - Summary of Significant Accounting Policies (Details Textual)	12 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Number of Full Service Branches	27
Target Percentage of Loans Requiring Review	100.00%
Minimum Existing Loan Requiring Review	$ 2,000,000
Minimum New Loan Requiring Review	500,000
Debt Securities, Trading	0	$ 0
Debt Securities, Held-to-maturity, Total	0	0
Federal Home Loan Bank Stock, Minimum Investment	4,400,000
Goodwill, Impairment Loss	0	0
Advertising Expense	$ 2,487,000	$ 2,498,000	$ 2,552,000
Minimum [Member] | Pro Forma [Member] | COVID 19 [Member]
Allowance for Loan and Lease Losses, Period Increase (Decrease), Percentage	4.00%
Minimum [Member] | Accounting Standards Update 2016-13 [Member] | Pro Forma [Member]
Allowance for Loan and Lease Losses, Period Increase (Decrease), Percentage	4.00%
Maximum [Member] | Pro Forma [Member] | COVID 19 [Member]
Allowance for Loan and Lease Losses, Period Increase (Decrease), Percentage	6.00%
Maximum [Member] | Accounting Standards Update 2016-13 [Member] | Pro Forma [Member]
Allowance for Loan and Lease Losses, Period Increase (Decrease), Percentage	6.00%
Residential 1 to 4 Family [Member] | Real Estate Portfolio Segment [Member]
Loan Portfolio Percentage	23.00%	24.00%
Commercial Real Estate [Member] | Real Estate Portfolio Segment [Member]
Loan Portfolio Percentage	36.00%	38.00%
Construction Loans [Member] | Real Estate Portfolio Segment [Member]
Loan Portfolio Percentage	21.00%	20.00%

Note 2 - Loans and Allowance _3

Note 2 - Loans and Allowance for Loan Losses (Details Textual)	12 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Loans Receivable with Variable Rates of Interest	$ 1,777,303,000	$ 1,640,991,000
Loans Receivable with Fixed Rates of Interest	553,297,000	452,051,000
Loans and Leases Receivable, Gross, Total	$ 2,330,600,000	$ 2,093,042,000
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest, Number of Loans	2	3
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	$ 1,333,000	$ 2,610,000
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Number of Payment Deferrals	13
Financing Receivable, Deferred Payments	$ 36,400,000
Mortgage Loans in Process of Foreclosure, Amount	301,000	$ 0
Loans and Leases Receivable, Related Parties, Ending Balance	7,675,000	12,878,000	$ 13,019,000
Loans Originated Into Secondary Market	213,483,000	160,921,000	129,060,000
Gain (Loss) on Sale of Mortgage Loans	9,560,000	6,802,000	$ 4,639,000
Loans Sold With Recourse In Secondary Market	181,700,000	115,789,000
Nonperforming Financial Instruments [Member]
Potential Problem Loans	8,200,000	10,700,000
Real Estate Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	2,076,783,000	1,929,325,000
Commercial Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	172,811,000	98,265,000
Commercial Portfolio Segment [Member] | SBA CARES Act Paycheck Protection Program [Member]
Loans and Leases Receivable, Gross, Total	62,400,000
Consumer Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	$ 70,517,000	$ 54,834,000
Minimum [Member] | Real Estate Portfolio Segment [Member]
Financing Receivable, Amortization Period (Year)	15 years
Financing Receivable, Maturity Period (Year)	5 years
Minimum [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Maturity Period (Year)	1 year
Maximum [Member] | Real Estate Portfolio Segment [Member]
Financing Receivable, Amortization Period (Year)	30 years
Financing Receivable, Maturity Period (Year)	15 years
Maximum [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Maturity Period (Year)	5 years

Note 2 - Loans and Allowance _4

Note 2 - Loans and Allowance for Loan Losses - Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Loans, gross	$ 2,330,600	$ 2,093,042
Net deferred loan fees	(9,295)	(7,141)
Total loans	2,321,305	2,085,901
Less: Allowance for loan losses	(38,539)	(28,726)	$ (27,174)
Loans, net	2,282,766	2,057,175
Real Estate Portfolio Segment [Member]
Loans, gross	2,076,783	1,929,325
Real Estate Portfolio Segment [Member] | Residential 1 to 4 Family [Member]
Loans, gross	535,994	511,250
Less: Allowance for loan losses	(8,098)	(7,144)	(6,297)
Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member]
Loans, gross	111,646	97,104
Less: Allowance for loan losses	(1,541)	(1,117)	(1,481)
Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member]
Loans, gross	837,766	793,379
Less: Allowance for loan losses	(16,802)	(11,114)	(9,753)
Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Loans, gross	488,626	425,185
Less: Allowance for loan losses	(7,936)	(5,997)	(7,084)
Real Estate Portfolio Segment [Member] | Farmland [Member]
Loans, gross	15,429	19,268
Less: Allowance for loan losses	(154)	(187)	(221)
Real Estate Portfolio Segment [Member] | Second Mortgages [Member]
Loans, gross	8,433	10,760
Less: Allowance for loan losses	(105)	(123)	(118)
Real Estate Portfolio Segment [Member] | Home Equity Line of Credit [Member]
Loans, gross	78,889	72,379
Less: Allowance for loan losses	(997)	(889)	(731)
Commercial Portfolio Segment [Member]
Loans, gross	172,811	98,265
Less: Allowance for loan losses	(1,378)	(1,044)	$ (622)
Agricultural Portfolio Segment [Member]
Loans, gross	1,206	1,569
Consumer Portfolio Segment [Member]
Loans, gross	70,517	54,834
Consumer Portfolio Segment [Member] | Personal Loan [Member]
Loans, gross	66,193	50,532
Consumer Portfolio Segment [Member] | Credit Card Receivable [Member]
Loans, gross	4,324	4,302
Unallocated Financing Receivables [Member]
Loans, gross	$ 9,283	$ 9,049

Note 2 - Loans and Allowance _5

Note 2 - Loans and Allowance for Loan Losses - Loans on Nonaccrual Status (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Loans on Nonaccrual Status	$ 1,333	$ 2,610
Real Estate Portfolio Segment [Member] | Residential 1 to 4 Family [Member]
Loans on Nonaccrual Status	1,022	949
Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member]
Loans on Nonaccrual Status	0	0
Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member]
Loans on Nonaccrual Status	311	1,661
Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Loans on Nonaccrual Status	0	0
Real Estate Portfolio Segment [Member] | Farmland [Member]
Loans on Nonaccrual Status	0	0
Real Estate Portfolio Segment [Member] | Second Mortgages [Member]
Loans on Nonaccrual Status	0	0
Real Estate Portfolio Segment [Member] | Home Equity Line of Credit [Member]
Loans on Nonaccrual Status	0	0
Commercial Portfolio Segment [Member]
Loans on Nonaccrual Status	0	0
Agricultural Installment and Other Portfolio Segment [Member]
Loans on Nonaccrual Status	$ 0	$ 0

Note 2 - Loans and Allowance _6

Note 2 - Loans and Allowance for Loan Losses - Loan Portfolio by Risk Rating (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Loans, gross	$ 2,330,600	$ 2,093,042
Pass [Member]
Loans, gross	2,322,354	2,082,391
Special Mention [Member]
Loans, gross	3,639	3,936
Substandard [Member]
Loans, gross	4,607	6,715
Real Estate Portfolio Segment [Member]
Loans, gross	2,076,783	1,929,325
Real Estate Portfolio Segment [Member] | Residential 1 to 4 Family [Member]
Loans, gross	535,994	511,250
Real Estate Portfolio Segment [Member] | Residential 1 to 4 Family [Member] | Pass [Member]
Loans, gross	529,546	503,861
Real Estate Portfolio Segment [Member] | Residential 1 to 4 Family [Member] | Special Mention [Member]
Loans, gross	2,745	2,923
Real Estate Portfolio Segment [Member] | Residential 1 to 4 Family [Member] | Substandard [Member]
Loans, gross	3,703	4,466
Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member]
Loans, gross	111,646	97,104
Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member] | Pass [Member]
Loans, gross	111,646	97,104
Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member] | Special Mention [Member]
Loans, gross	0	0
Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member] | Substandard [Member]
Loans, gross	0	0
Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member]
Loans, gross	837,766	793,379
Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member] | Pass [Member]
Loans, gross	837,028	791,610
Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member] | Special Mention [Member]
Loans, gross	149	0
Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member] | Substandard [Member]
Loans, gross	589	1,769
Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Loans, gross	488,626	425,185
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Pass [Member]
Loans, gross	488,571	424,517
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Special Mention [Member]
Loans, gross	27	635
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Substandard [Member]
Loans, gross	28	33
Real Estate Portfolio Segment [Member] | Farmland [Member]
Loans, gross	15,429	19,268
Real Estate Portfolio Segment [Member] | Farmland [Member] | Pass [Member]
Loans, gross	15,301	19,106
Real Estate Portfolio Segment [Member] | Farmland [Member] | Special Mention [Member]
Loans, gross	79	103
Real Estate Portfolio Segment [Member] | Farmland [Member] | Substandard [Member]
Loans, gross	49	59
Real Estate Portfolio Segment [Member] | Second Mortgages [Member]
Loans, gross	8,433	10,760
Real Estate Portfolio Segment [Member] | Second Mortgages [Member] | Pass [Member]
Loans, gross	8,148	10,458
Real Estate Portfolio Segment [Member] | Second Mortgages [Member] | Special Mention [Member]
Loans, gross	169	174
Real Estate Portfolio Segment [Member] | Second Mortgages [Member] | Substandard [Member]
Loans, gross	116	128
Real Estate Portfolio Segment [Member] | Home Equity Line of Credit [Member]
Loans, gross	78,889	72,379
Real Estate Portfolio Segment [Member] | Home Equity Line of Credit [Member] | Pass [Member]
Loans, gross	78,565	72,237
Real Estate Portfolio Segment [Member] | Home Equity Line of Credit [Member] | Special Mention [Member]
Loans, gross	314	0
Real Estate Portfolio Segment [Member] | Home Equity Line of Credit [Member] | Substandard [Member]
Loans, gross	10	142
Commercial Portfolio Segment [Member]
Loans, gross	172,811	98,265
Commercial Portfolio Segment [Member] | Pass [Member]
Loans, gross	172,779	98,243
Commercial Portfolio Segment [Member] | Special Mention [Member]
Loans, gross	0	0
Commercial Portfolio Segment [Member] | Substandard [Member]
Loans, gross	32	22
Agricultural Installment and Other Portfolio Segment [Member]
Loans, gross	81,006	65,452
Agricultural Installment and Other Portfolio Segment [Member] | Pass [Member]
Loans, gross	80,770	65,255
Agricultural Installment and Other Portfolio Segment [Member] | Special Mention [Member]
Loans, gross	156	101
Agricultural Installment and Other Portfolio Segment [Member] | Substandard [Member]
Loans, gross	$ 80	$ 96

Note 2 - Loans and Allowance _7

Note 2 - Loans and Allowance for Loan Losses - Age Analysis of Past Due Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Past Due	$ 7,555	$ 13,792
Current	2,323,045	2,079,250
Loans and Leases Receivable, Gross, Total	2,330,600	2,093,042
Recorded Investment Greater Than 90 Days and Accruing	1,049	2,507
Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	4,175	7,583
Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	998	1,092
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	2,382	5,117
Real Estate Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	2,076,783	1,929,325
Real Estate Portfolio Segment [Member] | Residential 1 to 4 Family [Member]
Past Due	4,963	7,895
Current	531,031	503,355
Loans and Leases Receivable, Gross, Total	535,994	511,250
Recorded Investment Greater Than 90 Days and Accruing	796	1,387
Real Estate Portfolio Segment [Member] | Residential 1 to 4 Family [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	2,634	4,760
Real Estate Portfolio Segment [Member] | Residential 1 to 4 Family [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	511	799
Real Estate Portfolio Segment [Member] | Residential 1 to 4 Family [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	1,818	2,336
Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member]
Past Due	0	0
Current	111,646	97,104
Loans and Leases Receivable, Gross, Total	111,646	97,104
Recorded Investment Greater Than 90 Days and Accruing	0	0
Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	0	0
Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	0	0
Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	0	0
Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member]
Past Due	460	2,161
Current	837,306	791,218
Loans and Leases Receivable, Gross, Total	837,766	793,379
Recorded Investment Greater Than 90 Days and Accruing	149	0
Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	0	500
Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	0	0
Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	460	1,661
Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Past Due	812	2,276
Current	487,814	422,909
Loans and Leases Receivable, Gross, Total	488,626	425,185
Recorded Investment Greater Than 90 Days and Accruing	44	594
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	768	1,535
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	0	147
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	44	594
Real Estate Portfolio Segment [Member] | Farmland [Member]
Past Due	0	65
Current	15,429	19,203
Loans and Leases Receivable, Gross, Total	15,429	19,268
Recorded Investment Greater Than 90 Days and Accruing	0	8
Real Estate Portfolio Segment [Member] | Farmland [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	0	57
Real Estate Portfolio Segment [Member] | Farmland [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	0	0
Real Estate Portfolio Segment [Member] | Farmland [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	0	8
Real Estate Portfolio Segment [Member] | Second Mortgages [Member]
Past Due	265	100
Current	8,168	10,660
Loans and Leases Receivable, Gross, Total	8,433	10,760
Recorded Investment Greater Than 90 Days and Accruing	0	100
Real Estate Portfolio Segment [Member] | Second Mortgages [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	265	0
Real Estate Portfolio Segment [Member] | Second Mortgages [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	0	0
Real Estate Portfolio Segment [Member] | Second Mortgages [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	0	100
Real Estate Portfolio Segment [Member] | Home Equity Line of Credit [Member]
Past Due	333	515
Current	78,556	71,864
Loans and Leases Receivable, Gross, Total	78,889	72,379
Recorded Investment Greater Than 90 Days and Accruing	0	372
Real Estate Portfolio Segment [Member] | Home Equity Line of Credit [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	31	143
Real Estate Portfolio Segment [Member] | Home Equity Line of Credit [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	302	0
Real Estate Portfolio Segment [Member] | Home Equity Line of Credit [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	0	372
Commercial Portfolio Segment [Member]
Past Due	218	101
Current	172,593	98,164
Loans and Leases Receivable, Gross, Total	172,811	98,265
Recorded Investment Greater Than 90 Days and Accruing	0	0
Commercial Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	114	71
Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	104	30
Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	0	0
Agricultural Installment and Other Portfolio Segment [Member]
Past Due	504	679
Current	80,502	64,773
Loans and Leases Receivable, Gross, Total	81,006	65,452
Recorded Investment Greater Than 90 Days and Accruing	60	46
Agricultural Installment and Other Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	363	517
Agricultural Installment and Other Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	81	116
Agricultural Installment and Other Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	$ 60	$ 46

Note 2 - Loans and Allowance _8

Note 2 - Loans and Allowance for Loan Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019
Beginning balance				$ 28,726				$ 27,174					$ 28,726	$ 27,174
Provision for loan losses	$ 3,065	$ 1,038	$ 4,124	1,469	$ 686	$ 167	$ 154	1,033	$ 1,097	$ 1,088	$ 1,090	$ 1,023	9,696	2,040
Charge-offs													(914)	(1,363)
Recoveries													1,031	875
Ending balance	38,539				28,726				27,174				38,539	28,726
Ending balance individually evaluated for impairment	742				1,136								742	1,136
Ending balance collectively evaluated for impairment	37,797				27,590								37,797	27,590
Loans and Leases Receivable, Gross, Total	2,330,600				2,093,042								2,330,600	2,093,042
Ending balance individually evaluated for impairment	3,369				5,040								3,369	5,040
Ending balance collectively evaluated for impairment	2,327,231				2,088,002								2,327,231	2,088,002
Real Estate Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	2,076,783				1,929,325								2,076,783	1,929,325
Commercial Portfolio Segment [Member]
Beginning balance				1,044				622					1,044	622
Provision for loan losses													343	422
Charge-offs													(9)	(15)
Recoveries													0	15
Ending balance	1,378				1,044				622				1,378	1,044
Ending balance individually evaluated for impairment	0				0								0	0
Ending balance collectively evaluated for impairment	1,378				1,044								1,378	1,044
Loans and Leases Receivable, Gross, Total	172,811				98,265								172,811	98,265
Ending balance individually evaluated for impairment	0				0								0	0
Ending balance collectively evaluated for impairment	172,811				98,265								172,811	98,265
Agricultural Installment and Other Portfolio Segment [Member]
Beginning balance				1,111				867					1,111	867
Provision for loan losses													851	1,041
Charge-offs													(898)	(1,160)
Recoveries													464	363
Ending balance	1,528				1,111				867				1,528	1,111
Ending balance individually evaluated for impairment	0				0								0	0
Ending balance collectively evaluated for impairment	1,528				1,111								1,528	1,111
Loans and Leases Receivable, Gross, Total	81,006				65,452								81,006	65,452
Ending balance individually evaluated for impairment	0				0								0	0
Ending balance collectively evaluated for impairment	81,006				65,452								81,006	65,452
Residential 1 to 4 Family [Member] | Real Estate Portfolio Segment [Member]
Beginning balance				7,144				6,297					7,144	6,297
Provision for loan losses													920	838
Charge-offs													0	(15)
Recoveries													34	24
Ending balance	8,098				7,144				6,297				8,098	7,144
Ending balance individually evaluated for impairment	594				795								594	795
Ending balance collectively evaluated for impairment	7,504				6,349								7,504	6,349
Loans and Leases Receivable, Gross, Total	535,994				511,250								535,994	511,250
Ending balance individually evaluated for impairment	2,399				2,569								2,399	2,569
Ending balance collectively evaluated for impairment	533,595				508,681								533,595	508,681
Multifamily Real Estate [Member] | Real Estate Portfolio Segment [Member]
Beginning balance				1,117				1,481					1,117	1,481
Provision for loan losses													424	(364)
Charge-offs													0	0
Recoveries													0	0
Ending balance	1,541				1,117				1,481				1,541	1,117
Ending balance individually evaluated for impairment	0				0								0	0
Ending balance collectively evaluated for impairment	1,541				1,117								1,541	1,117
Loans and Leases Receivable, Gross, Total	111,646				97,104								111,646	97,104
Ending balance individually evaluated for impairment	0				0								0	0
Ending balance collectively evaluated for impairment	111,646				97,104								111,646	97,104
Commercial Real Estate [Member] | Real Estate Portfolio Segment [Member]
Beginning balance				11,114				9,753					11,114	9,753
Provision for loan losses													5,388	1,484
Charge-offs													0	(173)
Recoveries													300	50
Ending balance	16,802				11,114				9,753				16,802	11,114
Ending balance individually evaluated for impairment	148				341								148	341
Ending balance collectively evaluated for impairment	16,654				10,773								16,654	10,773
Loans and Leases Receivable, Gross, Total	837,766				793,379								837,766	793,379
Ending balance individually evaluated for impairment	970				2,471								970	2,471
Ending balance collectively evaluated for impairment	836,796				790,908								836,796	790,908
Construction Loans [Member] | Real Estate Portfolio Segment [Member]
Beginning balance				5,997				7,084					5,997	7,084
Provision for loan losses													1,766	(1,510)
Charge-offs													0	0
Recoveries													173	423
Ending balance	7,936				5,997				7,084				7,936	5,997
Ending balance individually evaluated for impairment	0				0								0	0
Ending balance collectively evaluated for impairment	7,936				5,997								7,936	5,997
Loans and Leases Receivable, Gross, Total	488,626				425,185								488,626	425,185
Ending balance individually evaluated for impairment	0				0								0	0
Ending balance collectively evaluated for impairment	488,626				425,185								488,626	425,185
Farmland [Member] | Real Estate Portfolio Segment [Member]
Beginning balance				187				221					187	221
Provision for loan losses													(33)	(34)
Charge-offs													0	0
Recoveries													0	0
Ending balance	154				187				221				154	187
Ending balance individually evaluated for impairment	0				0								0	0
Ending balance collectively evaluated for impairment	154				187								154	187
Loans and Leases Receivable, Gross, Total	15,429				19,268								15,429	19,268
Ending balance individually evaluated for impairment	0				0								0	0
Ending balance collectively evaluated for impairment	15,429				19,268								15,429	19,268
Second Mortgages [Member] | Real Estate Portfolio Segment [Member]
Beginning balance				123				118					123	118
Provision for loan losses													(37)	5
Charge-offs													0	0
Recoveries													19	0
Ending balance	105				123				118				105	123
Ending balance individually evaluated for impairment	0				0								0	0
Ending balance collectively evaluated for impairment	105				123								105	123
Loans and Leases Receivable, Gross, Total	8,433				10,760								8,433	10,760
Ending balance individually evaluated for impairment	0				0								0	0
Ending balance collectively evaluated for impairment	8,433				10,760								8,433	10,760
Home Equity Line of Credit [Member] | Real Estate Portfolio Segment [Member]
Beginning balance				$ 889				$ 731					889	731
Provision for loan losses													74	158
Charge-offs													(7)	0
Recoveries													41	0
Ending balance	997				889				$ 731				997	889
Ending balance individually evaluated for impairment	0				0								0	0
Ending balance collectively evaluated for impairment	997				889								997	889
Loans and Leases Receivable, Gross, Total	78,889				72,379								78,889	72,379
Ending balance individually evaluated for impairment	0				0								0	0
Ending balance collectively evaluated for impairment	$ 78,889				$ 72,379								$ 78,889	$ 72,379

Note 2 - Loans and Allowance _9

Note 2 - Loans and Allowance for Loan Losses - Impaired Loans (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Recorded Investment, with no related allowance	$ 1,473,000	$ 2,041,000
Unpaid Principal Balance, with no related allowance	1,818,000	2,588,000
Average Recorded Investment, with no related allowance	706,000	2,000,000
Interest Income Recognized, with no related allowance	26,000	116,000
Recorded Investment, with related allowance	1,904,000	3,011,000
Unpaid Principal Balance, with related allowance	1,899,000	3,000,000
Related Allowance	742,000	1,136,000
Average Recorded Investment, with related allowance	1,949,000	3,605,000
Interest Income Recognized, with related allowance	88,000	100,000
Recorded Investment	3,377,000	5,052,000
Unpaid Principal Balance	3,717,000	5,588,000
Average Recorded Investment	2,655,000	5,605,000
Interest Income Recognized	114,000	216,000
Real Estate Portfolio Segment [Member] | Residential 1 to 4 Family [Member]
Recorded Investment, with no related allowance	1,162,000	1,090,000
Unpaid Principal Balance, with no related allowance	1,507,000	1,464,000
Average Recorded Investment, with no related allowance	395,000	1,090,000
Interest Income Recognized, with no related allowance	26,000	99,000
Recorded Investment, with related allowance	1,242,000	1,489,000
Unpaid Principal Balance, with related allowance	1,240,000	1,480,000
Related Allowance	594,000	795,000
Average Recorded Investment, with related allowance	1,273,000	1,590,000
Interest Income Recognized, with related allowance	66,000	83,000
Recorded Investment	2,404,000	2,579,000
Unpaid Principal Balance	2,747,000	2,944,000
Average Recorded Investment	1,668,000	2,680,000
Interest Income Recognized	92,000	182,000
Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member]
Recorded Investment, with no related allowance	0	0
Unpaid Principal Balance, with no related allowance	0	0
Average Recorded Investment, with no related allowance	0	0
Interest Income Recognized, with no related allowance	0	0
Recorded Investment, with related allowance	0	0
Unpaid Principal Balance, with related allowance	0	0
Related Allowance	0	0
Average Recorded Investment, with related allowance	0	0
Interest Income Recognized, with related allowance	0	0
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member]
Recorded Investment, with no related allowance	311,000	951,000
Unpaid Principal Balance, with no related allowance	311,000	1,124,000
Average Recorded Investment, with no related allowance	311,000	910,000
Interest Income Recognized, with no related allowance	0	17,000
Recorded Investment, with related allowance	662,000	1,522,000
Unpaid Principal Balance, with related allowance	659,000	1,520,000
Related Allowance	148,000	341,000
Average Recorded Investment, with related allowance	676,000	2,015,000
Interest Income Recognized, with related allowance	22,000	17,000
Recorded Investment	973,000	2,473,000
Unpaid Principal Balance	970,000	2,644,000
Average Recorded Investment	987,000	2,925,000
Interest Income Recognized	22,000	34,000
Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Recorded Investment, with no related allowance	0	0
Unpaid Principal Balance, with no related allowance	0	0
Average Recorded Investment, with no related allowance	0	0
Interest Income Recognized, with no related allowance	0	0
Recorded Investment, with related allowance	0	0
Unpaid Principal Balance, with related allowance	0	0
Related Allowance	0	0
Average Recorded Investment, with related allowance	0	0
Interest Income Recognized, with related allowance	0	0
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Real Estate Portfolio Segment [Member] | Farmland [Member]
Recorded Investment, with no related allowance	0	0
Unpaid Principal Balance, with no related allowance	0	0
Average Recorded Investment, with no related allowance	0
Interest Income Recognized, with no related allowance	0	0
Recorded Investment, with related allowance	0	0
Unpaid Principal Balance, with related allowance	0	0
Related Allowance	0	0
Average Recorded Investment, with related allowance	0	0
Interest Income Recognized, with related allowance	0	0
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Real Estate Portfolio Segment [Member] | Second Mortgages [Member]
Recorded Investment, with no related allowance	0	0
Unpaid Principal Balance, with no related allowance	0	0
Average Recorded Investment, with no related allowance	0	0
Interest Income Recognized, with no related allowance	0	0
Recorded Investment, with related allowance	0	0
Unpaid Principal Balance, with related allowance	0	0
Related Allowance	0	0
Average Recorded Investment, with related allowance	0	0
Interest Income Recognized, with related allowance	0	0
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Real Estate Portfolio Segment [Member] | Home Equity Line of Credit [Member]
Recorded Investment, with no related allowance	0	0
Unpaid Principal Balance, with no related allowance	0	0
Average Recorded Investment, with no related allowance	0	0
Interest Income Recognized, with no related allowance	0	0
Recorded Investment, with related allowance	0	0
Unpaid Principal Balance, with related allowance	0	0
Related Allowance	0	0
Average Recorded Investment, with related allowance	0	0
Interest Income Recognized, with related allowance	0	0
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Commercial Portfolio Segment [Member]
Recorded Investment, with no related allowance	0	0
Unpaid Principal Balance, with no related allowance	0	0
Average Recorded Investment, with no related allowance	0	0
Interest Income Recognized, with no related allowance	0	0
Recorded Investment, with related allowance	0	0
Unpaid Principal Balance, with related allowance	0	0
Related Allowance	0	0
Average Recorded Investment, with related allowance	0	0
Interest Income Recognized, with related allowance	0	0
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Agricultural Installment and Other Portfolio Segment [Member]
Recorded Investment, with no related allowance	0	0
Unpaid Principal Balance, with no related allowance	0	0
Average Recorded Investment, with no related allowance	0	0
Interest Income Recognized, with no related allowance	0	0
Recorded Investment, with related allowance	0	0
Unpaid Principal Balance, with related allowance	0	0
Related Allowance	0	0
Average Recorded Investment, with related allowance	0	0
Interest Income Recognized, with related allowance	0	0
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	$ 0	$ 0

Note 2 - Loans and Allowance_10

Note 2 - Loans and Allowance for Loan Losses - Troubled Debt Restructuring (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Total TDRS	$ 2,676	$ 4,547
Number of Contracts	1	5
Pre Modification Outstanding Recorded Investment	$ 111	$ 4,015
Post Modification Outstanding Recorded Investment, Net of Related Allowance	132	3,018
Performing Financial Instruments [Member]
Total TDRS	2,147	3,080
Nonperforming Financial Instruments [Member]
Total TDRS	$ 529	$ 1,467
Commercial Portfolio Segment [Member]
Number of Contracts	0	0
Pre Modification Outstanding Recorded Investment	$ 0	$ 0
Post Modification Outstanding Recorded Investment, Net of Related Allowance	$ 0	$ 0
Agricultural Installment and Other Portfolio Segment [Member]
Number of Contracts	0	0
Pre Modification Outstanding Recorded Investment	$ 0	$ 0
Post Modification Outstanding Recorded Investment, Net of Related Allowance	$ 0	$ 0
Residential 1 to 4 Family [Member] | Real Estate Portfolio Segment [Member]
Number of Contracts	0	1
Pre Modification Outstanding Recorded Investment	$ 0	$ 1,338
Post Modification Outstanding Recorded Investment, Net of Related Allowance	$ 0	$ 619
Multifamily Real Estate [Member] | Real Estate Portfolio Segment [Member]
Number of Contracts	0	0
Pre Modification Outstanding Recorded Investment	$ 0	$ 0
Post Modification Outstanding Recorded Investment, Net of Related Allowance	$ 0	$ 0
Commercial Real Estate [Member] | Real Estate Portfolio Segment [Member]
Number of Contracts	1	4
Pre Modification Outstanding Recorded Investment	$ 111	$ 2,677
Post Modification Outstanding Recorded Investment, Net of Related Allowance	$ 132	$ 2,399
Construction Loans [Member] | Real Estate Portfolio Segment [Member]
Number of Contracts	0	0
Pre Modification Outstanding Recorded Investment	$ 0	$ 0
Post Modification Outstanding Recorded Investment, Net of Related Allowance	$ 0	$ 0
Farmland [Member] | Real Estate Portfolio Segment [Member]
Number of Contracts	0	0
Pre Modification Outstanding Recorded Investment	$ 0	$ 0
Post Modification Outstanding Recorded Investment, Net of Related Allowance	$ 0	$ 0
Second Mortgages [Member] | Real Estate Portfolio Segment [Member]
Number of Contracts	0	0
Pre Modification Outstanding Recorded Investment	$ 0	$ 0
Post Modification Outstanding Recorded Investment, Net of Related Allowance	$ 0	$ 0
Home Equity Line of Credit [Member] | Real Estate Portfolio Segment [Member]
Number of Contracts	0	0
Pre Modification Outstanding Recorded Investment	$ 0	$ 0
Post Modification Outstanding Recorded Investment, Net of Related Allowance	$ 0	$ 0

Note 2 - Loans and Allowance_11

Note 2 - Loans and Allowance for Loan Losses - Loans to Related Parties (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Balance	$ 12,878,000	$ 13,019,000
New loans and renewals during the year	11,153,000	31,548,000
Repayments (including loans paid by renewal) during the year	(16,356,000)	(31,689,000)
Balance	$ 7,675,000	$ 12,878,000

Note 3 - Debt and Equity Secu_3

Note 3 - Debt and Equity Securities (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale, Amortized Cost, Total	$ 570,842,000	$ 420,207,000
Debt Securities, Available-for-sale, Total	580,543,000	421,145,000
Security Owned and Pledged as Collateral	282,028,000	256,300,000
Security Owned and Pledged as Collateral, Fair Value, Total	288,013,000	256,598,000
Securities Adjust Prior to Maturity	48,215,000	48,018,000
Securities Adjust Prior to Maturity, Market Value	48,439,000	47,784,000
Tennessee, Alabama, and Texas [Member]
Security Owned and Pledged as Collateral	78,931,000
Security Owned and Pledged as Collateral, Fair Value, Total	80,713,000
Collateralized Mortgage Obligations [Member]
Debt Securities, Available-for-sale, Amortized Cost, Total	88,472,000	46,994,000
Debt Securities, Available-for-sale, Total	$ 89,116,000	$ 47,442,000

Note 3 - Debt and Equity Secu_4

Note 3 - Debt and Equity Securities - Debt and Equity Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Available-for-sale, amortized cost	$ 570,842	$ 420,207
Securities, Available-for-sale, Gross Unrealized Gains	10,875	2,908
Securities, Available-for-sale, Gross Unrealized Losses	1,174	1,970
Debt Securities, Available-for-sale, Total	580,543	421,145
US Government-sponsored Enterprises Debt Securities [Member]
Available-for-sale, amortized cost	125,712	59,735
Securities, Available-for-sale, Gross Unrealized Gains	328	48
Securities, Available-for-sale, Gross Unrealized Losses	135	204
Debt Securities, Available-for-sale, Total	125,905	59,579
Collateralized Mortgage Backed Securities [Member]
Available-for-sale, amortized cost	258,774	265,648
Securities, Available-for-sale, Gross Unrealized Gains	5,636	2,300
Securities, Available-for-sale, Gross Unrealized Losses	620	635
Debt Securities, Available-for-sale, Total	263,790	267,313
Asset-backed Securities [Member]
Available-for-sale, amortized cost	36,394	27,531
Securities, Available-for-sale, Gross Unrealized Gains	582	1
Securities, Available-for-sale, Gross Unrealized Losses	19	303
Debt Securities, Available-for-sale, Total	36,957	27,229
Corporate Debt Securities [Member]
Available-for-sale, amortized cost	2,500	0
Securities, Available-for-sale, Gross Unrealized Gains	100	0
Securities, Available-for-sale, Gross Unrealized Losses	0	0
Debt Securities, Available-for-sale, Total	2,600	0
US States and Political Subdivisions Debt Securities [Member]
Available-for-sale, amortized cost	147,462	67,293
Securities, Available-for-sale, Gross Unrealized Gains	4,229	559
Securities, Available-for-sale, Gross Unrealized Losses	400	828
Debt Securities, Available-for-sale, Total	$ 151,291	$ 67,024

Note 3 - Debt and Equity Secu_5

Note 3 - Debt and Equity Securities - Debt Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Due in one year or less, securities available-for-sale, amortized cost	$ 1,196
Due in one year or less, securities available-for-sale, estimated market value	1,198
Due after one year through five years, securities available-for-sale, amortized cost	26,325
Due after one year through five years, securities available-for-sale, estimated market value	26,542
Due after five years through ten years, securities available-for-sale, amortized cost	107,341
Due after five years through ten years, securities available-for-sale, estimated market value	108,184
Due after ten years, securities available-for-sale, amortized cost	140,812
Due after ten years, securities available-for-sale, estimated market value	143,872
Securities available-for-sale, amortized cost	275,674
Securities available-for-sale, estimated market value	279,796
Mortgage and asset-backed securities, amortized cost	295,168
Mortgage and asset-backed securities, estimated market value	300,747
Amortized Cost	570,842	$ 420,207
Estimated market value	$ 580,543

Note 3 - Debt and Equity Secu_6

Note 3 - Debt and Equity Securities - Sales of Debt and Equity Securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Gross proceeds	$ 54,870	$ 37,325	$ 39,857
Gross realized gains	901	75	102
Gross realized losses	(19)	(343)	(752)
Net realized gains (losses)	$ 882	$ (268)	$ (650)

Note 3 - Debt and Equity Secu_7

Note 3 - Debt and Equity Securities - Gross Unrealized Losses and Fair Value of Company's Investments (Details) $ in Thousands	Dec. 31, 2020USD ($)item	Dec. 31, 2019USD ($)item
Available-for-Sale Securities, Less than 12 Months, Fair Value	$ 175,383	$ 110,599
Available-for-Sale Securities, Less than 12 Months, Unrealized Losses	$ 1,121	$ 1,240
Available-for-Sale Securities, Less than 12 Months, Number of Securities Included | item	83	62
Available-for-Sale Securities, 12 Months or More, Fair Value	$ 7,465	$ 92,750
Available-for-Sale Securities, 12 Months or More, Unrealized Losses	$ 53	$ 730
Available-for-Sale Securities, 12 Months or More, Number of Securities Included | item	13	75
Available-for-Sale Securities, Total, Fair Value	$ 182,848	$ 203,349
Available-for-Sale Securities, Total, Unrealized Losses	1,174	1,970
US Government-sponsored Enterprises Debt Securities [Member]
Available-for-Sale Securities, Less than 12 Months, Fair Value	47,991	16,507
Available-for-Sale Securities, Less than 12 Months, Unrealized Losses	$ 135	$ 114
Available-for-Sale Securities, Less than 12 Months, Number of Securities Included	18	5
Available-for-Sale Securities, 12 Months or More, Fair Value	$ 0	$ 24,658
Available-for-Sale Securities, 12 Months or More, Unrealized Losses	$ 0	$ 90
Available-for-Sale Securities, 12 Months or More, Number of Securities Included	0	9
Available-for-Sale Securities, Total, Fair Value	$ 47,991	$ 41,165
Available-for-Sale Securities, Total, Unrealized Losses	135	204
Collateralized Mortgage Backed Securities [Member]
Available-for-Sale Securities, Less than 12 Months, Fair Value	78,381	45,862
Available-for-Sale Securities, Less than 12 Months, Unrealized Losses	$ 573	$ 182
Available-for-Sale Securities, Less than 12 Months, Number of Securities Included	29	21
Available-for-Sale Securities, 12 Months or More, Fair Value	$ 6,776	$ 56,917
Available-for-Sale Securities, 12 Months or More, Unrealized Losses	$ 47	$ 453
Available-for-Sale Securities, 12 Months or More, Number of Securities Included	12	52
Available-for-Sale Securities, Total, Fair Value	$ 85,157	$ 102,779
Available-for-Sale Securities, Total, Unrealized Losses	620	635
Asset-backed Securities [Member]
Available-for-Sale Securities, Less than 12 Months, Fair Value	4,950	17,807
Available-for-Sale Securities, Less than 12 Months, Unrealized Losses	$ 19	$ 161
Available-for-Sale Securities, Less than 12 Months, Number of Securities Included	3	10
Available-for-Sale Securities, 12 Months or More, Fair Value	$ 0	$ 7,317
Available-for-Sale Securities, 12 Months or More, Unrealized Losses	$ 0	$ 142
Available-for-Sale Securities, 12 Months or More, Number of Securities Included	0	4
Available-for-Sale Securities, Total, Fair Value	$ 4,950	$ 25,124
Available-for-Sale Securities, Total, Unrealized Losses	19	303
Corporate Debt Securities [Member]
Available-for-Sale Securities, Less than 12 Months, Fair Value	0	0
Available-for-Sale Securities, Less than 12 Months, Unrealized Losses	$ 0	$ 0
Available-for-Sale Securities, Less than 12 Months, Number of Securities Included | item	0	0
Available-for-Sale Securities, 12 Months or More, Fair Value	$ 0	$ 0
Available-for-Sale Securities, 12 Months or More, Unrealized Losses	$ 0	$ 0
Available-for-Sale Securities, 12 Months or More, Number of Securities Included | item	0	0
Available-for-Sale Securities, Total, Fair Value	$ 0	$ 0
Available-for-Sale Securities, Total, Unrealized Losses	0	0
US States and Political Subdivisions Debt Securities [Member]
Available-for-Sale Securities, Less than 12 Months, Fair Value	44,061	30,423
Available-for-Sale Securities, Less than 12 Months, Unrealized Losses	$ 394	$ 783
Available-for-Sale Securities, Less than 12 Months, Number of Securities Included	33	26
Available-for-Sale Securities, 12 Months or More, Fair Value	$ 689	$ 3,858
Available-for-Sale Securities, 12 Months or More, Unrealized Losses	$ 6	$ 45
Available-for-Sale Securities, 12 Months or More, Number of Securities Included	1	10
Available-for-Sale Securities, Total, Fair Value	$ 44,750	$ 34,281
Available-for-Sale Securities, Total, Unrealized Losses	$ 400	$ 828

Note 4 - Leases - Lease Assets

Note 4 - Leases - Lease Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Other Assets [Member]
Operating lease right-of-use assets	$ 3,825	$ 2,573
Other Liabilities [Member]
Operating lease liabilities	$ 3,947	$ 2,614

Note 4 - Leases - Lease Cost an

Note 4 - Leases - Lease Cost and Other Information About Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Operating lease cost	$ 535	$ 372
Short-term lease cost	4	21
Net lease cost	$ 539	$ 393
Operating Leases, Weighted average remaining lease term (Year)	11 years 3 months 21 days	11 years 9 months 14 days
Operating Leases, Weighted average discount rate	4.00%	4.00%
Operating cash flows related to operating leases	$ 426	$ 360

Note 4 - Leases - Future Undisc

Note 4 - Leases - Future Undiscounted Lease Payments for Operating Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
2021	$ 494
2022	463
2023	471
2024	485
2025	490
Thereafter	2,521
Total undiscounted lease payments	4,924
Less: imputed interest	(977)
Other Liabilities [Member]
Net lease liabilities	$ 3,947	$ 2,614

Note 5 - Restricted Equity Se_2

Note 5 - Restricted Equity Securities (Details Textual) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Federal Home Loan Bank Certificates and Obligations (FHLB) [Member]
Restricted Investments	$ 5,089,000	$ 4,680,000

Note 6 - Premises and Equipme_3

Note 6 - Premises and Equipment (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Depreciation, Total	$ 4,250,000	$ 3,984,000	$ 3,602,000
Construction and Repairs of Buildings [Member] | Director [Member]
Related Party Transaction, Amounts of Transaction	$ 571,000	$ 2,207,000	$ 2,633,000

Note 6 - Premises and Equipme_4

Note 6 - Premises and Equipment - Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Premises and equipment, gross	$ 78,603	$ 78,597
Less accumulated depreciation	(20,401)	(18,302)
Property, Plant and Equipment, Net, Ending Balance	58,202	60,295
Land [Member]
Premises and equipment, gross	17,093	17,093
Building [Member]
Premises and equipment, gross	46,584	46,389
Leasehold Improvements [Member]
Premises and equipment, gross	573	533
Furniture and Fixtures [Member]
Premises and equipment, gross	13,861	13,000
Vehicles [Member]
Premises and equipment, gross	175	243
Construction in Progress [Member]
Premises and equipment, gross	$ 317	$ 1,339

Note 7 - Goodwill (Details Text

Note 7 - Goodwill (Details Textual)	Dec. 31, 2005
Business Acquisition, Percentage of Voting Interests Acquired	100.00%

Note 7 - Goodwill - Goodwill (D

Note 7 - Goodwill - Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Balance	$ 4,805	$ 4,805
Goodwill acquired during year	0	0
Impairment loss	0	0
Balance	$ 4,805	$ 4,805

Note 8 - Deposits (Details Text

Note 8 - Deposits (Details Textual) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Deposit Liabilities Reclassified as Loans Receivable	$ 284,000	$ 529,000
Minimum Average Yearly Cash Balance With Federal Reserve	$ 0	$ 0

Note 8 - Deposits - Deposits (D

Note 8 - Deposits - Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Demand deposits	$ 391,360	$ 284,611
Savings accounts	201,984	140,270
Negotiable order of withdrawal accounts	771,195	558,745
Money market demand accounts	984,677	801,986
Certificates of deposit $250,000 or greater	112,696	131,899
Other certificates of deposit	425,299	425,222
Individual retirement accounts $250,000 or greater	10,323	10,646
Other individual retirement accounts	63,061	64,226
Deposits, Total	$ 2,960,595	$ 2,417,605

Note 8 - Deposits - Principal M

Note 8 - Deposits - Principal Maturities of Certificates of Deposit and Individual Retirement Accounts (Details) $ in Thousands	Dec. 31, 2020USD ($)
2021	$ 342,291
2022	138,959
2023	87,243
2024	23,157
2025	19,271
Thereafter	458
Time Deposits, Total	$ 611,379

Note 9 - Federal Home Loan Ba_3

Note 9 - Federal Home Loan Bank Advances (Details Textual) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Advances from Federal Home Loan Banks, Total	$ 3,638,000	$ 23,613,000
Federal Home Loan Bank, Advances, Activity for Year, Average Interest Rate at Period End	2.68%
Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds	$ 336,432,000

Note 9 - Federal Home Loan Ba_4

Note 9 - Federal Home Loan Bank Advances - Required Future Principal Payments (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
2021	$ 1,350,000
2022	1,350,000
2023	788,000
2024	150,000
2025	0
Thereafter	0
Total	$ 3,638,000	$ 23,613,000

Note 10 - Non-interest Income_3

Note 10 - Non-interest Income and Non-interest Expense - Non-interest Income and Non-interest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Service charges on deposits	$ 5,659	$ 6,952	$ 6,799
Brokerage income	4,837	4,411	4,255
Debit and credit card interchange income	9,187	8,301	7,325
Other fees and commissions	1,540	1,521	2,124
BOLI and annuity earnings	823	810	841
Security gain (loss), net	882	(268)	(650)
Fees and gains on sales of mortgage loans	9,560	6,802	4,639
Gain (loss) on sale of other real estate, net	658	(48)	(80)
Loss on sale of fixed assets, net	(63)	(128)	(2)
Loss on sale of other assets, net	(4)	(4)	(3)
Other income	61	0	0
Noninterest Income, Total	33,140	28,349	25,248
Employee salaries and benefits	45,661	42,541	39,590
Equity-based compensation	1,180	786	1,237
Occupancy expenses	5,216	4,789	4,403
Furniture and equipment expenses	3,267	3,110	2,767
Data processing expenses	5,101	4,495	2,900
Advertising expenses	2,487	2,498	2,552
ATM & interchange fees	3,880	3,439	3,091
Accounting, legal & consulting expenses	909	1,382	977
FDIC insurance	598	373	843
Directors’ fees	634	586	543
Other operating expenses	11,986	10,629	10,177
Noninterest Expense, Total	$ 80,919	$ 74,628	$ 69,080

Note 11 - Income Taxes (Details

Note 11 - Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Expense (Benefit), Total	$ 9,618,000	$ 11,067,000	$ 8,783,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	21.00%
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax, Total	$ (231,000)	$ (70,000)	$ (170,000)
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total	0	$ 0	$ 0
Unrecognized Tax Benefits, Ending Balance	0
Deferred Tax Assets, Gross, Total	$ 12,400,000
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member]
Open Tax Year	2017 2018 2019 2020
State and Local Jurisdiction [Member] | Internal Revenue Service (IRS) [Member]
Open Tax Year	2017 2018 2019 2020

Note 11 - Income Taxes - Compon

Note 11 - Income Taxes - Components of Net Deferred Tax Asset (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax asset	$ 12,413	$ 9,684
Deferred tax liability	(5,324)	(3,548)
Net deferred tax asset	7,089	6,136
Financial statement allowance for loan losses in excess of tax allowance	9,840	7,283
Excess of depreciation deducted for tax purposes over the amounts deducted in the financial statements	(2,461)	(2,976)
Financial statement deduction for deferred compensation in excess of deduction for tax purposes	1,253	1,193
Writedown of other real estate not deductible for income tax purposes until sold	0	157
Financial statement income on FHLB stock dividends not recognized for tax purposes	(327)	(327)
Unrealized gain on securities available-for-sale	(2,535)	(245)
Equity based compensation	854	625
Other items, net	465	426
Domestic Tax Authority [Member]
Deferred tax asset	9,500	7,444
Deferred tax liability	(4,000)	(2,666)
State and Local Jurisdiction [Member]
Deferred tax asset	2,913	2,240
Deferred tax liability	$ (1,324)	$ (882)

Note 11 - Income Taxes - Comp_2

Note 11 - Income Taxes - Components of Income Tax Expense (Benefit) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current Federal	$ 11,383,000	$ 10,134,000	$ 8,310,000
Current State	1,539,000	1,411,000	721,000
Current	12,922,000	11,545,000	9,031,000
Deferred Federal	(2,503,000)	(335,000)	(136,000)
Deferred State	(801,000)	(143,000)	(112,000)
Provision for deferred tax benefit	(3,304,000)	(478,000)	(248,000)
Total Federal	8,880,000	9,799,000	8,174,000
Total State	738,000	1,268,000	609,000
Income Tax Expense (Benefit), Total	9,618,000	11,067,000	8,783,000
Current	12,922,000	11,545,000	9,031,000
Deferred	$ (3,304,000)	$ (478,000)	$ (248,000)

Note 11 - Income Taxes - Reconc

Note 11 - Income Taxes - Reconciliation of Actual Income Tax Expense to the Expected Tax Expense (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Computed “expected” tax expense	$ 10,103,000	$ 9,893,000	$ 8,689,000
State income taxes, net of Federal income tax benefit	552,000	1,056,000	432,000
Tax exempt interest, net of interest expense exclusion	(245,000)	(186,000)	(226,000)
Earnings on cash surrender value of life insurance	(173,000)	(170,000)	(177,000)
Expenses not deductible for tax purposes	14,000	37,000	16,000
Equity based compensation	(6,000)	15,000	(39,000)
Other	(627,000)	422,000	88,000
Income Tax Expense (Benefit), Total	$ 9,618,000	$ 11,067,000	$ 8,783,000

Note 12 - Commitments and Con_2

Note 12 - Commitments and Contingent Liabilities (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Line of Credit Facility, Maximum Borrowing Capacity	$ 95,488,000	$ 93,616,000
Long-term Line of Credit, Total	0	0
Cash Management Advance Line of Credit [Member] | Line of Credit [Member]
Line of Credit Facility, Maximum Borrowing Capacity	25,000,000
Long-term Line of Credit, Total	$ 0	$ 0
Line of Credit Facility, Period for Variable Rate (Day)	90 days
Line of Credit Facility, Period of Fixed Rate (Day)	30 days

Note 13 - Financial Instrumen_3

Note 13 - Financial Instruments with Off-balance-sheet Risk (Details Textual)	12 Months Ended
	Dec. 31, 2020USD ($)
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 81,952,000
Minimum [Member] | Standby Letters of Credit [Member]
Guarantee Obligations, Term 1 (Year)	1 year
Maximum [Member] | Standby Letters of Credit [Member]
Guarantee Obligations, Term 1 (Year)	2 years

Note 13 - Financial Instrumen_4

Note 13 - Financial Instruments with Off-balance-sheet Risk - Financial Instruments Whose Contract Amounts Represents Credit Risk (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Contract or notional amount	$ 933,148	$ 705,587
Unused Commitments to Extend Credit [Member]
Contract or notional amount	851,196	632,686
Standby Letters of Credit 1 [Member]
Contract or notional amount	$ 81,952	$ 72,901

Note 14 - Concentration of Cr_2

Note 14 - Concentration of Credit Risk (Details Textual)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Interest-bearing Deposits in Banks and Other Financial Institutions	$ 238,226,000
Interest Bearing Deposits, Number of Banks	5
Deposits with Other Federal Home Loan Banks	$ 313,000
Federal Funds Sold	$ 675,000	$ 20,000,000
Federal Funds Sold, Number of Banks	1
Collateral Related to Fixed Rate Loan Hedging Program [Member]
Interest-bearing Deposits in Banks and Other Financial Institutions	$ 1,200,000
Interest Bearing Deposits, Number of Banks	1

Note 15 - Employee Benefit Pl_2

Note 15 - Employee Benefit Plan (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Contribution Plan, Minimum Age for Eligibility (Year)	18 years
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 2,926,000	$ 2,540,000	$ 2,383,000

Note 16 - Dividend Reinvestme_2

Note 16 - Dividend Reinvestment Plan (Details Textual) - shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Stock Issued During Period, Shares, Dividend Reinvestment Plan (in shares)	180,424	179,199	161,514

Note 17 - Regulatory Matters _3

Note 17 - Regulatory Matters and Restrictions on Dividends - Summary of Company's and Wilson Banks Actual Capital Amounts and Ratios (Details) $ in Thousands	Dec. 31, 2019USD ($)
Total capital to risk weighted assets actual amount	$ 360,645
Total capital to risk weighted assets actual ratio	0.150
Total capital to risk weighted assets regulatory minimum capital requirement amount	$ 253,215
Total capital to risk weighted assets regulatory minimum capital requirement ratio (	0.105
Tier 1 capital to risk weighted assets actual amount	$ 331,485
Tier 1 capital to risk weighted assets actual ratio	0.137
Tier 1 capital to risk weighted assets regulatory minimum capital requirement amount	$ 204,984
Tier 1 capital to risk weighted assets regulatory minimum capital requirement ratio	0.085
Common equity Tier 1 capital to risk weighted assets actual amount	$ 331,485
Common equity Tier 1 capital to risk weighted assets actual ratio	13.70%
Common equity Tier 1 capital to risk weighted assets regulatory minimum capital requirement amount	$ 168,810
Common equity Tier 1 capital to risk weighted assets regulatory minimum capital requirement ratio	7.00%
Tier 1 capital to average assets actual amount	$ 331,485
Tier 1 capital to average assets actual ratio	0.124
Tier 1 capital to average assets regulatory minimum capital requirement amount	$ 106,565
Tier 1 capital to average assets regulatory minimum capital requirement ratio (as a percent)	0.040
Wilson Bank [Member]
Total capital to risk weighted assets actual amount	$ 359,576
Total capital to risk weighted assets actual ratio	0.149
Total capital to risk weighted assets regulatory minimum capital requirement amount	$ 252,675
Total capital to risk weighted assets regulatory minimum capital requirement ratio (	0.105
Tier 1 capital to risk weighted assets actual amount	$ 330,416
Tier 1 capital to risk weighted assets actual ratio	0.137
Tier 1 capital to risk weighted assets regulatory minimum capital requirement amount	$ 204,547
Tier 1 capital to risk weighted assets regulatory minimum capital requirement ratio	0.085
Common equity Tier 1 capital to risk weighted assets actual amount	$ 330,416
Common equity Tier 1 capital to risk weighted assets actual ratio	13.70%
Common equity Tier 1 capital to risk weighted assets regulatory minimum capital requirement amount	$ 168,451
Common equity Tier 1 capital to risk weighted assets regulatory minimum capital requirement ratio	7.00%
Tier 1 capital to average assets actual amount	$ 330,416
Tier 1 capital to average assets actual ratio	0.119
Tier 1 capital to average assets regulatory minimum capital requirement amount	$ 110,764
Tier 1 capital to average assets regulatory minimum capital requirement ratio (as a percent)	0.040

Note 17 - Regulatory Matters _4

Note 17 - Regulatory Matters and Restrictions on Dividends - Summary of Community Bank Leverage Ratio Information (Details) $ in Thousands	Dec. 31, 2020USD ($)
Community Bank Leverage Ratio, Amount, Actual	$ 368,150
Community Bank Leverage Ratio, Ratio, Actual	11.20%
Community Bank Leverage Ratio, Regulatory Minimum Capital Requirement, Amount	$ 230,993
Community Bank Leverage Ratio, Regulatory Minimum Capital Requirement, Ratio	7.00%
Wilson Bank [Member]
Community Bank Leverage Ratio, Amount, Actual	$ 364,976
Community Bank Leverage Ratio, Ratio, Actual	11.10%
Community Bank Leverage Ratio, Regulatory Minimum Capital Requirement, Amount	$ 230,929
Community Bank Leverage Ratio, Regulatory Minimum Capital Requirement, Ratio	7.00%

Note 18 - Salary Deferral Pla_2

Note 18 - Salary Deferral Plans (Details Textual) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Deferred Compensation Liability, Current and Noncurrent, Total	$ 1,742,000	$ 1,786,000
Cash Surrender Value of Life Insurance	5,547,000	4,657,000
Life Settlement Contracts, Investment Method, Face Value, Total	15,499,000	13,526,000
Supplemental Employee Retirement Plan Agreement [Member]
Deferred Compensation Liability, Current and Noncurrent, Total	3,052,000	2,778,000
Cash Surrender Value of Life Insurance	29,650,000	27,105,000
Life Settlement Contracts, Investment Method, Face Value, Total	68,827,000	61,067,000
Flexible Indexed Annuity Contracts Value	$ 18,682,000	$ 14,471,000

Note 19 - Equity Incentive Pl_3

Note 19 - Equity Incentive Plan (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jun. 30, 2016	Apr. 30, 2009
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)	153,443
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Ending Balance (in dollars per share)	$ 44.49
Deferred Compensation Liability, Current and Noncurrent, Total	$ 1,742,000	$ 1,786,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)	$ 14.92	$ 13.43	$ 14.41
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount	$ 1,477,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	2 years 8 months 12 days
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number, Ending Balance (in shares)	131,148
Share-based Compensation Arrangement by Share-based Payment Award, Instruments Other Than Options, Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 42.80
Stock Appreciation Rights (SARs) [Member] | Other Liabilities [Member]
Deferred Compensation Liability, Current and Noncurrent, Total	$ 2,303,000	$ 1,587,000
Options and Stock Appreciation Rights [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Intrinsic Value of Awards Exercised During Period	$ 463,000	$ 369,000	$ 200,000
The 2009 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)					100,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)	12,436
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Ending Balance (in dollars per share)	$ 33.99
The 2016 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)				750,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)	141,007
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Ending Balance (in dollars per share)	$ 45.41
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)	430,271
The 2016 Equity Incentive Plan [Member] | Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number, Ending Balance (in shares)	131,148
Share-based Compensation Arrangement by Share-based Payment Award, Instruments Other Than Options, Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 42.80

Note 19 - Equity Incentive Pl_4

Note 19 - Equity Incentive Plan - Schedule of Weighted-average Black-Scholes Fair Value Assumptions (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Expected dividends	1.56%	1.60%	1.22%
Expected term (in years) (Year)	7 years 4 months 17 days	7 years 1 month 20 days	9 years 4 months 6 days
Expected stock price volatility	31.00%	25.00%	24.00%
Risk-free rate	0.52%	1.90%	2.83%

Note 19 - Equity Incentive Pl_5

Note 19 - Equity Incentive Plan - Summary of Stock Option Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Shares Exercised (in shares)	(19,981)	(21,764)	(11,585)
Outstanding at end of year (in shares)	153,443
Outstanding at end of year, Weighted Average Exercise Price (in dollars per share)	$ 44.49
Stock Options and Stock Appreciation Rights [Member]
Outstanding at beginning of year (in shares)	273,039	277,820	285,780
Outstanding at beginning of year, Weighted Average Exercise Price (in dollars per share)	$ 41.19	$ 40.11	$ 39.31
Shares Granted (in shares)	43,833	17,833	21,666
Granted, Weighted Average Exercise Price (in dollars per share)	$ 55.72	$ 51.16	$ 46.59
Shares Exercised (in shares)	(24,881)	(22,614)	(22,460)
Exercised, Weighted Average Exercise Price (in dollars per share)	$ 37.84	$ 35.78	$ 37.07
Shares Forfeited or expired (in shares)	(7,400)	0	(7,166)
Forfeited or expired, Weighted Average Exercise Price (in dollars per share)	$ 41.70	$ 0	$ 37.53
Outstanding at end of year (in shares)	284,591	273,039	277,820
Outstanding at end of year, Weighted Average Exercise Price (in dollars per share)	$ 43.71	$ 41.19	$ 40.11
Options and cash-settled SARs exercisable at year end (in shares)	151,695	122,932	94,951
Options and cash-settled SARs exercisable at year end (in dollars per share)	$ 40.89	$ 40.19	$ 39.14

Note 19 - Equity Incentive Pl_6

Note 19 - Equity Incentive Plan - Summary of Information About Stock Options (Details) - Stock Options and Stock Appreciation Rights [Member] $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)$ / sharesshares
Options Outstanding, Number of outstanding (in shares) | shares	284,591
Options Exercisable, Number exercisable (in shares) | shares	151,695
Aggregate intrinsic value | $	$ 4,281
Aggregate intrinsic value | $	$ 2,709
Price Range 1 [Member]
Lower limit (in dollars per share)	$ 29.81
Options Outstanding, Number of outstanding (in shares) | shares	205,692
Upper limit (in dollars per share)	$ 44.75
Options Outstanding, Weighted average exercise price (in dollars per share)	$ 40.26
Options Outstanding, Weighted average remaining contractual term (Year)	4 years 11 months 15 days
Options Exercisable, Number exercisable (in shares) | shares	141,195
Options Exercisable, Weighted average exercise price (in dollars per share)	$ 40.34
Options Exercisable, Weighted average remaining contractual term (Year)	4 years 7 months 20 days
Price Range 2 [Member]
Lower limit (in dollars per share)	$ 46
Options Outstanding, Number of outstanding (in shares) | shares	78,899
Upper limit (in dollars per share)	$ 69
Options Outstanding, Weighted average exercise price (in dollars per share)	$ 52.68
Options Outstanding, Weighted average remaining contractual term (Year)	8 years 8 months 1 day
Options Exercisable, Number exercisable (in shares) | shares	10,500
Options Exercisable, Weighted average exercise price (in dollars per share)	$ 48.32
Options Exercisable, Weighted average remaining contractual term (Year)	7 years 6 months 10 days

Note 20 - Earnings Per Share -

Note 20 - Earnings Per Share - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Numerator – Earnings available to common stockholders	$ 8,902	$ 11,532	$ 9,027	$ 9,031	$ 7,972	$ 10,266	$ 9,516	$ 8,290	$ 9,833	$ 7,972	$ 7,309	$ 7,480	$ 38,492	$ 36,044	$ 32,594
Denominator – Weighted average number of common shares outstanding (in shares)													10,927,065	10,743,269	10,564,172
Basic earnings per common share (in dollars per share)	$ 0.81	$ 1.05	$ 0.83	$ 0.83	$ 0.74	$ 0.95	$ 0.89	$ 0.77	$ 0.93	$ 0.75	$ 0.69	$ 0.71	$ 3.52	$ 3.36	$ 3.09
Numerator – Earnings available to common stockholders													$ 38,492	$ 36,044	$ 32,594
Dilutive effect of stock options (in shares)													26,681	18,198	8,049
Diluted earnings per common share (in dollars per share)	$ 0.81	$ 1.05	$ 0.83	$ 0.83	$ 0.74	$ 0.95	$ 0.89	$ 0.77	$ 0.92	$ 0.75	$ 0.69	$ 0.71	$ 3.51	$ 3.35	$ 3.08

Note 21 - Derivatives (Details

Note 21 - Derivatives (Details Textual) - USD ($)	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2019
Interest Rate Lock Commitments [Member]
Derivative, Notional Amount	$ 20,981,000		$ 10,307,000
Derivative Asset, Fair Value, Gross Asset, Total	714,000		328,000
Forward Contracts [Member]
Derivative, Notional Amount	21,250,000		14,000,000
Derivative Liability, Fair Value, Gross Liability, Total	$ 157,000		$ 23,000
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Fair Value Hedging [Member]
Derivative, Notional Amount		$ 30,000,000

Note 21 - Derivatives - Summary

Note 21 - Derivatives - Summary of Fair Value Hedge Relationships (Details) - Interest Rate Swap [Member] - Fair Value Hedging [Member] - Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Weighted Average Remaining Maturity (Year)	9 years 5 months 1 day
Notional Amount	$ 29,575	$ 0
Other Liabilities [Member]
Estimated Fair Value	$ (51)	$ 0
London Interbank Offered Rate (LIBOR) Swap Rate [Member]
Weighted Average Pay Rate	0.65%

Note 21 - Derivatives - Income

Note 21 - Derivatives - Income Statement Effects of Fair Value Hedge Relationships (Details) - Interest Rate Swap [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Hedged items	$ (158)	$ 0
Designated as Hedging Instrument [Member] | Fair Value Hedging [Member]
Derivative designated as hedging instruments	$ (51)	$ 0

Note 21 - Derivatives - Amounts

Note 21 - Derivatives - Amounts Recorded on the Balance Sheet Related to Cumulative Basis Adjustments for Fair Value Hedges (Details) - Fair Value Hedging [Member] - Designated as Hedging Instrument [Member] - Interest Rate Swap [Member] - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Carrying Amount of the Hedged Assets	$ 29,575	$ 0
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets	$ (158)	$ 0

Note 21 - Derivatives - Net Gai

Note 21 - Derivatives - Net Gains (Losses) Relating to Free-standing Derivative Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Interest Rate Contract [Member]
Net gains (losses)	$ 386	$ (7)
Forward Contracts [Member]
Net gains (losses)	$ (134)	$ 65

Note 21 - Derivatives - Amount

Note 21 - Derivatives - Amount and Fair Value of Mortgage Banking Derivatives (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Interest Rate Contract [Member]
Derivative, amount	$ 20,981,000	$ 10,307,000
Derivatives	714,000	328,000
Forward Contracts [Member]
Derivative, amount	21,250,000	14,000,000
Derivative, fair value	$ (157,000)	$ (23,000)

Note 22 - Disclosures About F_3

Note 22 - Disclosures About Fair Value of Financial Instruments (Details Textual) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Impaired Financing Receivable, Related Allowance	$ 742,000	$ 1,136,000

Note 22 - Disclosures About F_4

Note 22 - Disclosures About Fair Value of Financial Instruments - Fair Value of Financial Instruments Measured on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	$ 580,543	$ 421,145
US Government-sponsored Enterprises Debt Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	125,905	59,579
Collateralized Mortgage Backed Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	263,790	267,313
Asset-backed Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	36,957	27,229
Corporate Debt Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	2,600	0
US States and Political Subdivisions Debt Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	151,291	67,024
Fair Value, Recurring [Member] | Reported Value Measurement [Member]
Hedged Loans	29,417	0
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	580,543	421,145
Mortgage loans held for sale	19,474	18,179
Derivatives	714	328
Bank owned life insurance	35,197	31,762
Total assets	665,345	471,414
Derivative Liability, Fair Value, Gross Liability, Total	208	23
Total liabilities	208	23
Fair Value, Recurring [Member] | Reported Value Measurement [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	125,905	59,579
Fair Value, Recurring [Member] | Reported Value Measurement [Member] | Collateralized Mortgage Backed Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	263,790	267,313
Fair Value, Recurring [Member] | Reported Value Measurement [Member] | Asset-backed Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	36,957	27,229
Fair Value, Recurring [Member] | Reported Value Measurement [Member] | Corporate Debt Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	2,600	0
Fair Value, Recurring [Member] | Reported Value Measurement [Member] | US States and Political Subdivisions Debt Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	151,291	67,024
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Hedged Loans	0	0
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	0	0
Mortgage loans held for sale	0	0
Derivatives	0	0
Bank owned life insurance	0	0
Derivative Liability, Fair Value, Gross Liability, Total	0	0
Total liabilities	0	0
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	0	0
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | Collateralized Mortgage Backed Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	0	0
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | Asset-backed Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	0	0
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | Corporate Debt Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	0	0
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | US States and Political Subdivisions Debt Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	0	0
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Hedged Loans	29,417	0
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	580,543	421,145
Mortgage loans held for sale	19,474	18,179
Derivatives	714	328
Bank owned life insurance	0	0
Total assets	630,148	439,652
Derivative Liability, Fair Value, Gross Liability, Total	208	23
Total liabilities	208	23
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	125,905	59,579
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Collateralized Mortgage Backed Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	263,790	267,313
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Asset-backed Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	36,957	27,229
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	2,600	0
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | US States and Political Subdivisions Debt Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	151,291	67,024
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Hedged Loans	0	0
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	0	0
Mortgage loans held for sale	0	0
Derivatives	0	0
Bank owned life insurance	35,197	31,762
Total assets	35,197	31,762
Derivative Liability, Fair Value, Gross Liability, Total	0	0
Total liabilities	0	0
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	0	0
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | Collateralized Mortgage Backed Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	0	0
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | Asset-backed Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	0	0
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | Corporate Debt Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	0	0
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | US States and Political Subdivisions Debt Securities [Member]
Available-for-sale securities, at market (amortized cost $570,842 and $420,207, respectively)	$ 0	$ 0

Note 22 - Disclosures About F_5

Note 22 - Disclosures About Fair Value of Financial Instruments - Fair Value of Financial Instruments Measured on a Non-recurring Basis (Details) - Fair Value, Nonrecurring [Member] - USD ($) $ in Thousands		Dec. 31, 2020	Dec. 31, 2019
Reported Value Measurement [Member]
Other real estate owned		$ 0	$ 697
Impaired loans, net	[1]	2,635	3,916
Total assets		2,635	4,613
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Other real estate owned		0	0
Impaired loans, net	[1]	0	0
Total assets		0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Other real estate owned		0	0
Impaired loans, net	[1]	0	0
Total assets		0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Other real estate owned		0	697
Impaired loans, net	[1]	2,635	3,916
Total assets		$ 2,635	$ 4,613
[1]	Amount is net of a valuation allowance of $742,000 at December 31, 2020 and $1,136,000 at December 31, 2019 as required by ASC 310, "Receivables."

Note 22 - Disclosures About F_6

Note 22 - Disclosures About Fair Value of Financial Instruments - Additional Information on Assets Measured on a Nonrecurring Basis (Details) - Fair Value, Nonrecurring [Member] - Fair Value, Inputs, Level 3 [Member] - Measurement Input, Discount Rate [Member] - Weighted Average [Member]	Dec. 31, 2020	[1]
Impaired loans	0.10
Other real estate owned	0.10
[1]	The fair value is generally determined through independent appraisals of the underlying collateral, which may include Level 3 inputs that are not identifiable, or by using the discounted cash flow method if the loan is not collateral dependent.

Note 22 - Disclosures About F_7

Note 22 - Disclosures About Fair Value of Financial Instruments - Changes in Fair Value Due to Observable Factors (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Fair value, other assets	$ 31,762	$ 30,952
Total realized gains included in income, other assets	823	810
Change in unrealized gains/losses included in other comprehensive income for assets and liabilities still held, other assets	0	0
Purchases, issuances and settlements, net, other assets	2,612	0
Transfers out of Level 3, other assets	0	0
Fair value, other assets	35,197	31,762
Total realized gains included in income related to financial assets and liabilities still on the consolidated balance sheet, other assets	$ 823	$ 810

Note 22 - Disclosures About F_8

Note 22 - Disclosures About Fair Value of Financial Instruments - Carrying Value and Estimated Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands		Dec. 31, 2020	Dec. 31, 2019
Restricted equity securities		$ 5,089	$ 4,680
Reported Value Measurement [Member]
Cash and cash equivalents		338,856	159,770
Loans, net		2,282,766	2,057,175
Restricted equity securities		5,089	4,680
Accrued interest receivable		7,516	5,945
Deposits		2,960,595	2,417,605
Federal Home Loan Bank borrowings		3,638	23,613
Accrued interest payable		3,051	3,814
Estimate of Fair Value Measurement [Member]
Cash and cash equivalents	[1]	338,856	159,770
Loans, net	[1]	2,302,530	2,053,212
Accrued interest receivable	[1]	7,516	5,945
Deposits	[1]	2,796,339	2,210,038
Federal Home Loan Bank borrowings	[1]	3,755	23,860
Accrued interest payable	[1]	3,051	3,814
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and cash equivalents		338,856	159,770
Loans, net		0	0
Accrued interest receivable		1	5
Deposits		0	0
Federal Home Loan Bank borrowings		0	0
Accrued interest payable		0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Cash and cash equivalents		0	0
Loans, net		0	0
Accrued interest receivable		2,210	1,647
Deposits		0	0
Federal Home Loan Bank borrowings		0	0
Accrued interest payable		0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Cash and cash equivalents		0	0
Loans, net		2,302,530	2,053,212
Accrued interest receivable		5,305	4,293
Deposits		2,796,339	2,210,038
Federal Home Loan Bank borrowings		3,755	23,860
Accrued interest payable		$ 3,051	$ 3,814
[1]	Estimated fair values are consistent with an exit-price concept. The assumptions used to estimate the fair values are intended to approximate those that a market-participant would realize in a hypothetical orderly transaction.

Note 24 - Wilson Bank Holding_3

Note 24 - Wilson Bank Holding Company - Parent Company Financial Information - Balance Sheets (Details) - USD ($)	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018	Dec. 31, 2017
Deferred income taxes	$ 7,089,000		$ 6,136,000
Total assets	3,369,604,000		2,794,209,000
Stock appreciation rights payable	1,742,000		1,786,000
Total liabilities	2,989,483,000		2,457,225,000
Common stock, par value $2.00 per share, authorized 50,000,000 shares, 10,993,404 and 10,792,999 shares issued and outstanding, respectively	21,987,000		21,586,000
Additional paid-in capital	93,034,000		82,249,000
Retained earnings	257,935,000		232,456,000
Net unrealized gains on available-for-sale securities, net of taxes of $2,536 and $245, respectively	7,165,000		693,000
Total stockholders’ equity	380,121,000		336,984,000		$ 295,667,000	$ 267,730,000
Total liabilities and stockholders’ equity	3,369,604,000		2,794,209,000
Parent Company [Member]
Cash	4,381,000	[1]	1,899,000	[1]	$ 2,759,000	$ 1,589,000
Investment in wholly-owned commercial bank subsidiary	376,947,000		335,915,000
Deferred income taxes	854,000		625,000
Refundable income taxes	242,000		132,000
Total assets	382,424,000		338,571,000
Stock appreciation rights payable	2,303,000		1,587,000
Total liabilities	2,303,000		1,587,000
Common stock, par value $2.00 per share, authorized 50,000,000 shares, 10,993,404 and 10,792,999 shares issued and outstanding, respectively	21,987,000		21,586,000
Additional paid-in capital	93,034,000		82,249,000
Retained earnings	257,935,000		232,456,000
Net unrealized gains on available-for-sale securities, net of taxes of $2,536 and $245, respectively	7,165,000		693,000
Total stockholders’ equity	380,121,000		336,984,000
Total liabilities and stockholders’ equity	$ 382,424,000		$ 338,571,000
[1]	Eliminated in consolidation.

Note 24 - Wilson Bank Holding_4

Note 24 - Wilson Bank Holding Company - Parent Company Financial Information - Balance Sheets (Details) (Parentheticals) - USD ($) $ / shares in Units, $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Common stock, par value (in dollars per share)	$ 2	$ 2
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	10,993,404	10,792,999
Common stock, shares outstanding (in shares)	10,993,404	10,792,999
Net unrealized losses on available-for-sale securities, income taxes	$ 2,536	$ 245
Parent Company [Member]
Common stock, par value (in dollars per share)	$ 2	$ 2
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	10,993,404	10,792,999
Common stock, shares outstanding (in shares)	10,993,404	10,792,999
Net unrealized losses on available-for-sale securities, income taxes	$ 2,536	$ 245

Note 24 - Wilson Bank Holding_5

Note 24 - Wilson Bank Holding Company - Parent Company Financial Information - Statements of Earnings (Details) - USD ($)		3 Months Ended												12 Months Ended
		Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Other income														$ 61,000	$ 0	$ 0
Noninterest Income, Total														33,140,000	28,349,000	25,248,000
Directors’ fees														634,000	586,000	543,000
Noninterest Expense, Total														80,919,000	74,628,000	69,080,000
Income taxes														9,618,000	11,067,000	8,783,000
Net earnings		$ 8,902,000	$ 11,532,000	$ 9,027,000	$ 9,031,000	$ 7,972,000	$ 10,266,000	$ 9,516,000	$ 8,290,000	$ 9,833,000	$ 7,972,000	$ 7,309,000	$ 7,480,000	38,492,000	36,044,000	32,594,000
Parent Company [Member]
Dividends from commercial bank subsidiary														5,000,000	2,800,000	3,000,000
Other income														61,000	0	0
Noninterest Income, Total														5,061,000	2,800,000	3,000,000
Directors’ fees														335,000	283,000	254,000
Other														1,264,000	885,000	1,351,000
Noninterest Expense, Total														1,599,000	1,168,000	1,605,000
Income before Federal income tax benefits and equity in undistributed earnings of commercial bank subsidiary														3,462,000	1,632,000	1,395,000
Income taxes														471,000	287,000	468,000
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total														3,933,000	1,919,000	1,863,000
Equity in undistributed earnings of commercial bank subsidiary	[1]													34,559,000	34,125,000	30,731,000
Net earnings														$ 38,492,000	$ 36,044,000	$ 32,594,000
[1]	Eliminated in consolidation.

Note 24 - Wilson Bank Holding_6

Note 24 - Wilson Bank Holding Company - Parent Company Financial Information - Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended															12 Months Ended
	Dec. 31, 2020		Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020		Dec. 31, 2019		Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Cash paid to suppliers and employees																$ (75,082)		$ (69,412)		$ (64,351)
Net cash provided by operating activities																50,409		36,346		40,608
Net cash used in investing activities																(397,923)		(177,616)		(232,563)
Common stock dividends paid																(13,013)		(11,725)		(9,447)
Proceeds from exercise of common shares																718		775		394
Repurchase of stock options																0		(1,629)		0
Net cash provided by financing activities																526,600		201,849		195,628
Net earnings	$ 8,902		$ 11,532	$ 9,027	$ 9,031		$ 7,972		$ 10,266	$ 9,516	$ 8,290	$ 9,833	$ 7,972	$ 7,309	$ 7,480	38,492		36,044		32,594
Increase (decrease) in taxes payable																756		339		(1,526)
Equity-based compensation expense																1,180		786		1,237
Total adjustments																11,917		302		8,014
Parent Company [Member]
Other income received																61		0		0
Cash paid to suppliers and employees																(418)		(383)		(367)
Tax benefits received																131		177		181
Net cash provided by operating activities																(226)		(206)		(186)
Dividends received from commercial bank subsidiary																5,000		2,800		3,000
Net cash used in investing activities																5,000		2,800		3,000
Payments made to stock appreciation rights holders																(53)		(9)		(61)
Common stock dividends paid																(13,013)		(11,725)		(9,447)
Proceeds from sale of stock pursuant to dividend reinvestment plan																10,056		9,134		7,470
Proceeds from exercise of common shares																718		775		394
Repurchase of stock options																0		(1,629)		0
Net cash provided by financing activities																(2,292)		(3,454)		(1,644)
Net increase (decrease) in cash and cash equivalents																2,482		(860)		1,170
Cash and cash equivalents at beginning of year					$ 1,899	[1]					$ 2,759				$ 1,589	1,899	[1]	2,759		1,589
Cash and cash equivalents at end of year	$ 4,381	[1]					$ 1,899	[1]				$ 2,759				4,381	[1]	1,899	[1]	2,759
Net earnings																38,492		36,044		32,594
Equity in earnings of commercial bank subsidiary																(39,559)		(36,925)		(33,731)
Increase (decrease) in taxes payable																(110)		45		5
Increase in deferred taxes																(229)		(156)		(291)
Equity-based compensation expense																1,180		786		1,237
Total adjustments																$ (38,718)		$ (36,250)		$ (32,780)
[1]	Eliminated in consolidation.

Note 25 - Quarterly Financial_3

Note 25 - Quarterly Financial Data (Unaudited) - Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Interest income	$ 30,351	$ 30,961	$ 31,569	$ 30,087	$ 29,897	$ 30,329	$ 29,567	$ 28,284	$ 27,585	$ 26,298	$ 25,548	$ 24,094	$ 122,968	$ 118,077	$ 103,525
Interest expense	3,969	4,112	4,308	4,994	5,522	5,991	5,923	5,211	4,606	3,656	3,097	2,659	17,383	22,647	14,018
Net interest income	26,382	26,849	27,261	25,093	24,375	24,338	23,644	23,073	22,979	22,642	22,451	21,435	105,585	95,430	89,507
Provision for loan losses	3,065	1,038	4,124	1,469	686	167	154	1,033	1,097	1,088	1,090	1,023	9,696	2,040
Earnings before income taxes	10,771	14,669	11,313	11,357	10,222	13,556	12,451	10,882	10,708	10,718	9,798	10,153
Net earnings	$ 8,902	$ 11,532	$ 9,027	$ 9,031	$ 7,972	$ 10,266	$ 9,516	$ 8,290	$ 9,833	$ 7,972	$ 7,309	$ 7,480	$ 38,492	$ 36,044	$ 32,594
Basic earnings per common share (in dollars per share)	$ 0.81	$ 1.05	$ 0.83	$ 0.83	$ 0.74	$ 0.95	$ 0.89	$ 0.77	$ 0.93	$ 0.75	$ 0.69	$ 0.71	$ 3.52	$ 3.36	$ 3.09
Diluted earnings per common share (in dollars per share)	$ 0.81	$ 1.05	$ 0.83	$ 0.83	$ 0.74	$ 0.95	$ 0.89	$ 0.77	$ 0.92	$ 0.75	$ 0.69	$ 0.71	$ 3.51	$ 3.35	$ 3.08