Riverview Financial (RIVE) 10-Q 6 May 21 2021 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2021	Apr. 29, 2021
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Mar. 31, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Entity Registrant Name	Riverview Financial Corp
Entity Central Index Key	0001590799
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Interactive Data Current	Yes
Entity Address, State or Province	PA
Entity File Number	001-38627
Entity Incorporation, State or Country Code	PA
Entity Address, Address Line One	3901 North Front Street
Entity Tax Identification Number	38-3917371
Entity Address, City or Town	Harrisburg
Entity Address, Postal Zip Code	17110
City Area Code	717
Local Phone Number	957-2196
Title of 12(b) Security	Common Stock
Trading Symbol	RIVE
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		9,350,961

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Assets:
Cash and due from banks	$ 9,496	$ 13,511
Interest-bearing deposits in other banks	53,668	36,270
Investment securities available-for-sale	155,863	103,695
Loans held for sale	2,502	4,338
Loans, net	1,091,824	1,139,239
Less: allowance for loan losses	12,140	12,200
Net loans	1,079,684	1,127,039
Premises and equipment, net	17,991	18,147
Accrued interest receivable	4,189	4,216
Intangible assets	1,786	1,918
Other assets	49,661	48,420
Total assets	1,374,840	1,357,554
Deposits:
Noninterest-bearing	197,360	173,600
Interest-bearing	883,568	841,860
Total deposits	1,080,928	1,015,460
Long-term debt	180,644	228,765
Accrued interest payable	1,347	1,038
Other liabilities	13,298	14,859
Total liabilities	1,276,217	1,260,122
Stockholders' equity:
Common stock: no par value, authorized 20,000,000 shares; March 31, 2021, issued and outstanding 9,348,831 shares; December 31, 2020, issued and outstanding 9,306,442 shares	102,861	102,662
Capital surplus	292	292
Retained earnings (accumulated deficit)	(3,397)	(6,457)
Accumulated other comprehensive income (loss)	(1,133)	935
Total stockholders' equity	98,623	97,432
Total liabilities and stockholders' equity	$ 1,374,840	$ 1,357,554

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	9,348,831	9,306,442
Common stock, shares outstanding	9,348,831	9,306,442

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Interest and fees on loans:
Taxable		$ 10,348	$ 9,782
Tax-exempt		176	245
Interest on investment securities available-for-sale:
Taxable		494	535
Tax-exempt		152	37
Interest on interest-bearing deposits in other banks		9	89
Total interest income		11,179	10,688
Interest expense:
Interest on deposits		923	1,789
Interest on short-term borrowings			5
Interest on long-term debt		646	123
Total interest expense		1,569	1,917
Net interest income		9,610	8,771
Provision for loan losses			1,800
Net interest income after provision for loan losses		9,610	6,971
Noninterest income:
Bank owned life insurance investment income		178	193
Net gain (loss) on sale of investment securities available-for-sale		246	815
Total noninterest income		2,523	2,930
Noninterest expense:
Salaries and employee benefits expense		4,467	5,056
Net occupancy and equipment expense		1,190	1,180
Amortization of intangible assets		132	170
Net cost (benefit) of operation of other real estate owned		(29)	(11)
Other expenses		2,627	2,817
Total noninterest expense		8,387	9,212
Income before income taxes		3,746	689
Income tax expense		686	56
Net income		3,060	633
Other comprehensive income (loss):
Unrealized gain (loss) on investment securities available-for-sale		(3,029)	1,053
Reclassification adjustment for net gain on sale of investment securities available-for-sale included in net income	[1]	(246)	(815)
Change in cash flow hedge		657
Income tax expense (benefit) related to other comprehensive income		(550)	50
Other comprehensive income (loss), net of income taxes		(2,068)	188
Comprehensive income		$ 992	$ 821
Net income:
Basic		$ 0.33	$ 0.07
Diluted		$ 0.33	$ 0.07
Average common shares outstanding:
Basic		9,341,291	9,223,445
Diluted		9,341,533	9,233,060
Dividends declared		$ 0	$ 0.08
Service Charges, Fees and Commissions [Member]
Noninterest income:
Noninterest income		$ 1,474	$ 1,381
Commission and Fees on Fiduciary Activities [Member]
Noninterest income:
Noninterest income		260	213
Wealth Management Income [Member]
Noninterest income:
Noninterest income		214	220
Mortgage Banking Income [Member]
Noninterest income:
Noninterest income		$ 151	$ 108
[1]	Represents amounts reclassified out of accumulated other comprehensive income and included in gains on sale of investment securities on the consolidated statements of income and comprehensive income.

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock [Member]	Capital Surplus [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2019	$ 118,110	$ 102,206	$ 112	$ 16,140	$ (348)
Net income	633			633
Other comprehensive income (loss), net of income taxes	188				188
Issuance under ESPP, 401k and Dividend Reinvestment plans	180	180
Stock based compensation	22		22
Dividends declared	(692)			(692)
Balance at Mar. 31, 2020	118,441	102,386	134	16,081	(160)
Balance at Dec. 31, 2020	97,432	102,662	292	(6,457)	935
Net income	3,060			3,060
Other comprehensive income (loss), net of income taxes	(2,068)				(2,068)
Issuance under ESPP, 401k and Dividend Reinvestment plans	134	134
Stock based compensation	65	65
Balance at Mar. 31, 2021	$ 98,623	$ 102,861	$ 292	$ (3,397)	$ (1,133)

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	Mar. 31, 2021	Mar. 31, 2020
Statement of Stockholders' Equity [Abstract]
Dividends declared, per share	$ 0	$ 0.08

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net income	$ 3,060	$ 633
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization of premises and equipment	340	320
Provision for loan losses		1,800
Stock based compensation	65	22
Net amortization of investment securities available-for-sale	411	169
Net cost (benefit) of operation of other real estate owned	(29)	(11)
Net gain on sale of investment securities available-for-sale	(246)	(815)
Accretion of purchase adjustment on loans	(22)	(132)
Amortization of intangible assets	132	170
Amortization of assumed discount on long-term debt	22	21
Amortization of long-term debt issuance costs	25
Deferred income taxes	391	53
Proceeds from sale of loans originated for sale	5,928	2,791
Net gain on sale of loans originated for sale	(151)	(108)
Loans originated for sale	(3,941)	(2,874)
Bank owned life insurance investment income	(178)	(193)
Accrued interest receivable	27	(175)
Other assets	(435)	(2)
Accrued interest payable	309	(11)
Other liabilities	(1,561)	(1,275)
Net cash provided operating activities	4,147	383
Investment securities available-for-sale:
Purchases	(68,371)	(7,317)
Proceeds from repayments	2,865	3,878
Proceeds from sales	9,898	27,168
Proceeds from the sale of other real estate owned	232	68
Net (increase) decrease in restricted equity securities	(15)	(867)
Net (increase) decrease in loans	47,377	(36,594)
Purchases of premises and equipment	(184)	(1,343)
Net cash used in investing activities	(8,198)	(15,007)
Cash flows from financing activities:
Net increase in deposits	65,468	18,023
Repayment of long-term debt	(48,168)
Proceeds from long-term debt		20,000
Issuance under ESPP, 401k and DRP plans	134	180
Cash dividends paid		(692)
Net cash provided by financing activities	17,434	37,511
Net increase in cash and cash equivalents	13,383	22,887
Cash and cash equivalents—beginning	49,781	50,348
Cash and cash equivalents—ending	63,164	73,235
Cash paid during the period for:
Interest	$ 1,260	1,928
Supplemental schedule of noncash investing and financing activities:
Other real estate acquired in settlement of loans		$ 321

Summary of significant accounti

Summary of significant accounting policies	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Summary of significant accounting policies	1. Summary of significant accounting policies: Nature of Operations Riverview Financial Corporation, (the “Company” or “Riverview”), a bank holding company incorporated under the laws of Pennsylvania, provides a full range of financial services through its wholly-owned subsidiary, Riverview Bank (the “Bank”). Riverview Bank, with 25 full-service offices and limited purpose offices, is a full service commercial bank offering a wide range of traditional banking services and financial advisory, insurance and investment services to individuals, municipalities, and small-to-medium sized businesses in the Pennsylvania market areas of Berks, Blair, Bucks, Centre, Clearfield, Dauphin, Huntingdon, Lebanon, Lehigh, Lycoming, Perry, Schuylkill, and Somerset Counties. The Wealth and Trust Management divisions of the Bank provide trust and investment advisory services to the general public and businesses. Basis of presentation: The accompanying unaudited consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP’) for interim financial information and with the instructions to Form 10-Q Regulation S-X. Form 10-K, The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. These estimates and assumptions affect the amounts reported in the financial statements and the disclosures provided. Actual results could differ from those estimates. The operating results and financial position of the Company for the three months ended as of March 31, 2021, are not necessarily indicative of the results of operations and financial position that may be expected in the future. This is especially true given the outbreak of the Coronavirus (“COVID-19”) The impact of the pandemic on Riverview’s financial results is evolving and uncertain. Net interest income and non-interest COVID-19. COVID-19 Accounting Standards Adopted in 2021 In August 2018, the FASB issued ASU No. 2018-14, 715-20) 715-20 or other postretirement plans. The ASU is effective for all entities in fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. Early adoption is permitted. The adoption of the guidance did not have a material effect on the Company’s financial position, results of operations or disclosures. In December 2019, the FASB issued ASU No. 2019-12, No. 2019-12 Recent Accounting Standards In June 2016, the FASB issued ASU No. 2016-13, 2016-13 requires No. 2016-13 available-for-sale 2018-19—Codification 326-20. No. 2019-05 No. 2016-13 2016-13, 326-20 825-10. held-to-maturity instrument-by-instrument No. 2019-11, 805-20. day-one one-time In March 2020, the FASB issued ASU No. 2020-04, 2020-04 2020-04 2020-04 2020-04 January 2021, the FASB issued ASU 2021-01, “Reference Rate Reform (Topic 848): Scope.” ASU 2021-01 clarifies that certain optional expedients and exceptions in ASC 848 for contract modifications and hedge accounting apply to derivatives that are affected by the discounting transition. ASU 2021-01 also amends the expedients and exceptions in ASC 848 to capture the incremental consequences of the scope clarification and to tailor the existing guidance to derivative instruments affected by the discounting transition. ASU 2021-01 was effective upon issuance and generally can be applied through December 31, 2022. The adoption of the guidance is not expected to have a material effect on the Company’s financial position, results of operations or disclosures.

Other comprehensive income (los

Other comprehensive income (loss)	3 Months Ended
	Mar. 31, 2021
Equity [Abstract]
Other comprehensive income (loss)	2. Other comprehensive income (loss): The components of other comprehensive income (loss) and their related tax effects are reported in the Consolidated Statements of Income and Comprehensive Income (Loss). The accumulated other comprehensive income (loss) included in the Consolidated Balance Sheets relates to net unrealized gains and losses on investment securities available-for-sale The components of accumulated other comprehensive income (loss) included in stockholders’ equity at March 31, 2021 and December 31, 2020 is as follows: March 31, 2021 December 31, 2020 Net unrealized gain (loss) on investment securities available-for-sale $ (1,313 ) $ 1,962 Income tax expense (benefit) (276 ) 412 Net of income taxes (1,037 ) 1,550 Benefit plan adjustments (951 ) (951 ) Income tax expense (benefit) (200 ) (200 ) Net of income taxes (751 ) (751 ) Derivative fair value adjustment 829 172 Income tax expense (benefit) 174 36 Net of income taxes 655 136 Accumulated other comprehensive income (loss) $ (1,133 ) $ 935 Other comprehensive income (loss) and related tax effects for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, 2021 2020 Unrealized gain (loss) on investment securities available-for-sale $ (3,029 ) $ 1,053 Net (gain) loss on the sale of investment securities available-for-sale (1) (246 ) (815 ) Net change in cash flow hedge 657 Other comprehensive income (loss) before taxes (2,618 ) 238 Income tax expense (benefit) (550 ) 50 Other comprehensive income (loss) $ (2,068 ) $ 188 (1) Represents amounts reclassified out of accumulated other comprehensive income and included in gains on sale of investment securities on the consolidated statements of income and comprehensive income.

Earnings per share

Earnings per share	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Earnings per share	3. Earnings per share: Basic earnings per share is computed by dividing net income (loss) divided by the weighted-average number of common shares outstanding during the period. Diluted earnings per share reflect additional 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. The following table provides a reconciliation between the computation of basic earnings per share and diluted earnings per share for the three months ended March 31, 2021 and 2020: Three months ended March 31, 2021 2020 Numerator: Net income $ 3,060 $ 633 Denominator: Basic 9,341,291 9,223,445 Dilutive options 242 9,615 Diluted 9,341,533 9,233,060 Earnings per share: Basic $ 0.33 $ 0.07 Diluted $ 0.33 $ 0.07 For the three months ended March 31, 2021 there were 151,300 outstanding stock options that were excluded from the dilutive earnings per share calculation because their effect was antidilutive. For the three months ended March 31, 2020, there were 37,200 outstanding stock options that were excluded from the dilutive earnings per share calculation because their effect was antidilutive.

Investment securities

Investment securities	3 Months Ended
	Mar. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Investment securities	4. Investment securities: The amortized cost and fair value of investment securities available-for-sale March 31, 2021 Amortized Gross Gross Fair U.S. Treasury securities $ 19,396 $ 418 $ 18,978 State and municipals: Taxable 23,779 $ 238 959 23,058 Tax-exempt 44,599 84 1,131 43,552 Mortgage-backed securities: U.S. Government agencies 35,693 929 237 36,385 U.S. Government-sponsored enterprises 20,459 280 42 20,697 Corporate debt obligations 13,250 29 86 13,193 Total $ 157,176 $ 1,560 $ 2,873 $ 155,863 December 31, 2020 Amortized Gross Gross Fair State and municipals: Taxable $ 22,317 $ 400 $ 143 $ 22,574 Tax-exempt 17,988 423 16 18,395 Mortgage-backed securities: U.S. Government agencies 26,051 940 26,991 U.S. Government-sponsored enterprises 24,627 442 17 25,052 Corporate debt obligations 10,750 56 123 10,683 Total $ 101,733 $ 2,261 $ 299 $ 103,695 The maturity distribution of the fair value, which is the net carrying amount, of the debt securities classified as available-for-sale March 31, 2021 Fair Value Within one year $ 56 After one but within five years 933 After five but within ten years 40,219 After ten years 57,573 98,781 Mortgage-backed securities 57,082 Total $ 155,863 Securities with a fair value of $99,013 and $71,676 at March 31, 2021 and December 31, 2020, respectively, were pledged to secure public deposits as required or permitted by law. Securities and short-term investment activities are conducted with a diverse group of government entities, corporations and state and local municipalities. The counterparty’s creditworthiness and type of collateral is evaluated on a case-by-case The fair value and gross unrealized losses of investment securities with unrealized losses for which an other-than-temporary impairment (“OTTI”) has not been recognized at March 31, 2021 and December 31, 2020, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position, are summarized as follows: Less Than 12 Months 12 Months or More Total March 31, 2021 Fair Unrealized Fair Unrealized Fair Unrealized U.S. Treasury securities $ 18,978 $ 418 $ 18,978 $ 418 State and municipals: Taxable 16,261 959 16,261 959 Tax-exempt 39,131 1,131 39,131 1,131 Mortgage-backed securities: U.S. Government agencies 10,182 237 10,182 237 U.S. Government-sponsored enterprises 5,758 42 5,758 42 Corporate debt obligations 6,664 86 6,664 86 Total $ 96,974 $ 2,873 $ 96,974 $ 2,873 Less Than 12 Months 12 Months or More Total December 31, 2020 Fair Unrealized Fair Unrealized Fair Unrealized State and municipals: Taxable $ 11,586 $ 143 $ $ $ 11,586 $ 143 Tax-exempt 1,737 16 1,737 16 Mortgage-backed securities: U.S. Government agencies 5,960 17 5 17 U.S. Government-sponsored enterprises Corporate debt obligations 3,378 123 3,378 123 Total $ 19,283 $ 176 $ 3,378 $ 123 $ 22,661 $ 299 The Company had 66 investment securities, consisting of three U.S. Treasury securities, 15 taxable state and municipal obligations, 38 tax-exempt recoverable within a reasonable period of time in relation to normal cyclical changes in the market rates of interest. Moreover, because there has been no material change in the credit quality of the issuers or other events or circumstances that may cause a significant adverse impact on the fair value of these securities, and management does not intend to sell these securities and it is unlikely that the Company will be required to sell these securities before recovery of their amortized cost basis, which may be maturity, the Company does not consider the unrealized losses to be OTTI at March 31, 2021. There was no OTTI recognized for the three months ended March 31, 2021 and 2020. The Company had 16 investment securities, consisting of nine taxable state municipal obligations, three tax-exempt

Loans, net, and allowance for l

Loans, net, and allowance for loan losses	3 Months Ended
	Mar. 31, 2021
Receivables [Abstract]
Loans, net, and allowance for loan losses	5. Loans, net , The major classifications of loans outstanding, net of deferred loan origination fees and costs at March 31, 2021 and December 31, 2020 are summarized as follows. Net deferred loan costs were March 31, 2021 December 31, 2020 Commercial $ 327,191 $ 359,080 Real estate: Construction 78,277 73,402 Commercial 489,652 502,495 Residential 190,857 197,596 Consumer 5,847 6,666 Total $ 1,091,824 $ 1,139,239 The Company participated in the Coronavirus Aid, Relief and Economic Security Act (“CARES Act”), Paycheck Protection Program (“PPP”), a multi-billion dollar specialized low-interest PPP loans totaled $251,810, net of unearned fees of $5,075 as of December 31, 2020. The Company is utilizing the Federal Reserve’s Paycheck Protection Program Liquidity Facility (“PPPLF”) to meet the funding needs of its borrowers of PPP loans. The change in the allowance for loan losses account by major loan classifications for the three months ended March 31, 2021 and 2020 is summarized as follows: Real Estate March 31, 2021 Commercial Construction Commercial Residential Consumer Unallocated Total Allowance for loan losses: Beginning Balance, January 1, 2021 $ 1,705 $ 1,117 $ 6,494 $ 2,427 $ 142 $ 315 $ 12,200 Charge-offs (9 ) (37 ) (48 ) (94 ) Recoveries 1 2 31 34 Provisions (303 ) 54 298 (193 ) 2 $ 142 Ending balance $ 1,393 $ 1,134 $ 6,793 $ 2,236 $ 127 $ 457 $ 12,140 Real Estate March 31, 2020 Commercial Construction Commercial Residential Consumer Unallocated Total Allowance for loan losses: Beginning Balance, January 1, 2020 $ 1,953 $ 473 $ 3,115 $ 1,820 $ 155 $ 7,516 Charge-offs (899 ) (95 ) (130 ) (1,124 ) Recoveries 2 1 56 59 Provisions 615 222 896 (107 ) 71 $ 103 1,800 Ending balance $ 1,671 $ 695 $ 3,917 $ 1,713 $ 152 $ 103 $ 8,251 The allocation of the allowance for loan losses and related loans by classifications of loans at March 31, 2021 and December 31, 2020 is summarized as follows: Real Estate March 31, 2021 Commercial Construction Commercial Residential Consumer Unallocated Total Allowance for loan losses: Ending balance $ 1,393 $ 1,134 $ 6,793 $ 2,236 $ 127 $ 457 $ 12,140 Ending balance: individually evaluated for impairment 724 724 Ending balance: collectively evaluated for impairment 1,393 1,134 6,069 2,236 127 457 11,416 Ending balance: purchased credit impaired loans $ $ $ $ $ $ $ Loans receivable: Ending balance $ 327,191 $ 78,277 $ 489,652 $ 190,857 $ 5,847 $ $ 1,091,824 Ending balance: individually evaluated for impairment 1,677 970 6,546 2,386 11,579 Ending balance: collectively evaluated for impairment 325,514 77,307 482,768 188,317 5,847 1,079,753 Ending balance: purchased credit impaired loans $ $ $ 338 $ 154 $ $ $ 492 Real Estate December 31, 2020 Commercial Construction Commercial Residential Consumer Unallocated Total Allowance for loan losses: Ending balance $ 1,705 $ 1,117 $ 6,494 $ 2,427 $ 142 $ 315 $ 12,200 Ending balance: individually evaluated for impairment Ending balance: collectively evaluated for impairment 1,705 1,117 6,494 2,427 142 315 12,200 Ending balance: purchased credit impaired loans $ $ $ $ $ $ $ Loans receivable: Ending balance $ 359,080 $ 73,402 $ 502,495 $ 197,596 $ 6,666 $ $ 1,139,239 Ending balance: individually evaluated for impairment 1,565 6,444 2,494 10,503 Ending balance: collectively evaluated for impairment 357,515 73,402 495,674 194,939 6,666 1,128,196 Ending balance: purchased credit impaired loans $ $ $ 377 $ 163 $ $ $ 540 The Company segments loans into risk categories based on relevant information about the ability of borrowers to service their debt such as current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. Non-homogeneous • Pass—A loan to borrowers with acceptable credit quality and risk that is not adversely classified as Substandard, Doubtful, Loss or designated as Special Mention. • Special Mention—A loan that has potential weaknesses that deserves management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or in the institution’s credit position at some future date. Special Mention loans are not adversely classified since they do not expose the Company to sufficient risk to warrant adverse classification. • Substandard—A loan that is inadequately protected by the current sound worth and paying capacity of the obligor or by the collateral pledged, if any. Loans so classified must have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the Bank will sustain some loss if the deficiencies are not corrected. • Doubtful—A loan classified as Doubtful has all the weaknesses inherent in one classified Substandard with the added characteristic that the weaknesses make the collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. • Loss—A loan classified as Loss is considered uncollectible and of such little value that its continuance as a bankable loan is not warranted. This classification does not mean that the loan has absolutely no recovery or salvage value, but rather it is not practical or desirable to defer writing off this basically worthless asset even though partial recovery may occur in the future. Homogeneous loans not meeting the criteria above are considered pass rated loans and evaluated based on delinquency performance. The following tables present the major classifications of loans summarized by the aggregate pass rating and the classified ratings of special mention, substandard and doubtful within the Company’s internal risk rating system at March 31, 2021 and December 31, 2020: March 31, 2021 Pass Special Substandard Doubtful Total Commercial $ 322,223 $ 2,957 $ 2,011 $ $ 327,191 Real estate: Construction 68,818 129 9,330 78,277 Commercial 435,173 26,608 27,871 489,652 Residential 185,630 1,136 4,091 190,857 Consumer 5,847 5,847 Total $ 1,017,691 $ 30,830 $ 43,303 $ $ 1,091,824 December 31, 2020 Pass Special Substandard Doubtful Total Commercial $ 353,758 $ 3,147 $ 2,175 $ $ 359,080 Real estate: Construction 63,838 1,817 7,747 73,402 Commercial 451,190 29,180 22,125 502,495 Residential 191,775 2,670 3,151 197,596 Consumer 6,666 6,666 Total $ 1,067,227 $ 36,814 $ 35,198 $ $ 1,139,239 The following tables present the classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans as of March 31, 2021 and December 31, 2020. Purchase credit impaired (“PCI”) loans are excluded from the aging and nonaccrual loan schedules. Accrual Loans March 31, 2021 30-59 Days 60-89 Days 90 or More Total Past Current Nonaccrual Total Loans Commercial $ 34 $ 21 $ $ 55 $ 326,325 $ 811 $ 327,191 Real estate: Construction 34 34 77,272 971 78,277 Commercial 252 252 489,033 29 489,314 Residential 881 21 161 1,063 188,623 1,017 190,703 Consumer 14 6 4 24 5,823 5,847 Total $ 1,215 $ 48 $ 165 $ 1,428 $ 1,087,076 $ 2,828 $ 1,091,332 Purchased credit impaired loans 492 Total Loans $ 1,091,824 Accrual Loans December 31, 2020 30-59 Days 60-89 Days 90 or More Total Past Current Nonaccrual Total Loans Commercial $ 64 $ 1 $ $ 65 $ 358,496 $ 519 $ 359,080 Real estate: Construction 73,402 73,402 Commercial 1,238 4,063 5,301 496,785 32 502,118 Residential 2,125 2,993 146 5,264 191,299 870 197,433 Consumer 22 20 10 52 6,614 6,666 Total $ 3,449 $ 7,077 $ 156 $ 10,682 $ 1,126,596 $ 1,421 $ 1,138,699 Purchased credit impaired loans 540 Total Loans $ 1,139,239 The following tables summarize information concerning impaired loans as of and for the three months ended March 31, 2021 and 2020, and as of and for the year ended, December 31, 2020, by major loan classification: This Quarter March 31, 2021 Recorded Unpaid Related Average Interest With no related allowance: Commercial $ 1,677 $ 1,787 $ 1,621 $ 41 Real estate: Construction 970 970 485 Commercial 914 914 3,868 34 Residential 2,540 2,670 2,599 33 Consumer Total 6,101 6,341 8,573 108 With an allowance recorded: Commercial Real estate: Construction Commercial 5,970 5,970 $ 724 2,985 48 Residential Consumer Total 5,970 5,970 724 2,985 48 Commercial 1,677 1,787 1,621 41 Real estate: Construction 970 970 485 Commercial 6,884 6,884 724 6,853 82 Residential 2,540 2,670 2,599 33 Consumer Total $ 12,071 $ 12,311 $ 724 $ 11,558 $ 156 Recorded Unpaid Related For the Year Ended December 31, 2020 Average Interest With no related allowance: Commercial $ 1,565 $ 1,675 $ 1,356 $ 416 Real estate: Construction Commercial 6,821 6,821 4,392 311 Residential 2,657 2,787 2,493 146 Consumer Total 11,043 11,283 8,241 873 With an allowance recorded: Commercial 561 Real estate: Construction Commercial 391 65 Residential Consumer Total 952 65 Commercial 1,565 1,675 1,917 416 Real estate: Construction Commercial 6,821 6,821 4,783 376 Residential 2,657 2,787 2,493 146 Consumer Total $ 11,043 $ 11,283 $ 9,193 $ 938 March 31, 2020 Recorded Unpaid Related This Quarter Average Interest With no related allowance: Commercial $ 1,098 $ 1,208 $ 873 $ 68 Real estate: Construction Commercial 2,550 2,550 2,837 47 Residential 2,292 2,422 2,345 25 Consumer Total 5,940 6,180 6,055 140 With an allowance recorded: Commercial 121 121 $ 29 653 Real estate: Construction Commercial 367 367 87 513 4 Residential 45 Consumer Total 488 488 116 1,211 4 Commercial 1,219 1,329 29 1,526 68 Real estate: Construction Commercial 2,917 2,917 87 3,350 51 Residential 2,292 2,422 2,390 25 Consumer Total $ 6,428 $ 6,668 $ 116 $ 7,266 $ 144 For the three months ended March 31, interest income related to impaired loans, would have been $28 in 2021 and $21 in 2020 had the loans been current and the terms of the loans not been modified. Troubled debt restructured loans are loans with original terms, interest rate, or both, that have been modified as a result of a deterioration in the borrower’s financial condition and a concession has been granted that the Company would not otherwise consider. Unless on nonaccrual, interest income on these loans is recognized when earned, using the interest method. The Company offers a variety of modifications to borrowers that would be considered concessions. The modification categories offered generally fall within the following categories: • Rate Modification—A modification in which the interest rate is changed to a below market rate. • Term Modification—A modification in which the maturity date, timing of payments or frequency of payments is changed. • Interest Only Modification—A modification in which the loan is converted to interest only payments for a period of time. • Payment Modification—A modification in which the dollar amount of the payment is changed, other than an interest only modification described above. • Combination Modification—Any other type of modification, including the use of multiple categories above. Included in the commercial loan and commercial and residential real estate categories are troubled debt restructures that are classified as impaired. Troubled debt restructures totaled $9,960 at March 31, 2021, $9,985 at December 31, 2020 and $2,680 at March 31, 2020. There were no loans modified as troubled debt restructures during the three During the three months ended March 31, 2021, there were no one The Company is a party to financial instruments with off-balance Distribution of off-balance March 31, December 31, Unused portion of lines of credit $ 100,153 $ 92,848 Construction loans 14,906 24,751 Commitments to extend credit 5,740 10,275 Deposit overdraft protection 17,909 18,117 Standby and performance letters of credit 7,313 6,577 Total $ 146,021 $ 152,568 The Company’s exposure to credit loss in the event of nonperformance by the other party to the off-balance sheet financial instruments is represented by the contractual amounts of those instruments. The Company follows the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments. We record a valuation allowance for off-balance sheet credit losses, if deemed necessary, separately as a liability. The valuation allowance amounted to 93 off-balance

Other assets

Other assets	3 Months Ended
	Mar. 31, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other assets	6. Other assets: The components of other assets at March 31, 2021 and December 31, 2020 are summarized as follows: March 31, December 31, Other real estate owned $ 219 $ 422 Bank owned life insurance 31,603 31,425 Restricted equity securities 1,774 1,759 Deferred tax assets 4,066 3,907 Lease right-of-use 2,133 2,278 Other assets 9,866 8,629 Total $ 49,661 $ 48,420

Fair value estimates

Fair value estimates	3 Months Ended
	Mar. 31, 2021
Fair Value Disclosures [Abstract]
Fair value estimates	7. Fair value estimates: The Company uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosure under GAAP. Fair value estimates are calculated without attempting to estimate the value of anticipated future business and the value of certain assets and liabilities that are not considered financial. Accordingly, such assets and liabilities are excluded from disclosure requirements. In accordance with FASB ASC 820, “Fair Value Measurements and Disclosures”, fair value is the price that would be received to sell an asset or transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is best determined based upon quoted market prices. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. In that regard, the derived fair value estimates cannot be substantiated by comparison to independent markets. In many cases, these values cannot be realized in immediate settlement of the instrument. Current fair value guidance provides a consistent definition of fair value, which focuses on exit price in an orderly transaction that is not a forced liquidation or distressed sale between participants at the measurement date under current market conditions. If there has been a significant decrease in the volume and level of activity for the asset or liability, a change in valuation technique or the use of multiple valuation techniques may be appropriate. In such instances, determining the price at which willing market participants would transact at the measurement date under current market conditions depends on the facts and circumstances and requires the use of significant judgment. The fair value is a reasonable point within the range that is most representative of fair value under current market conditions. In accordance with GAAP, the Company groups its assets and liabilities generally measured at fair value into three levels based on market information or other fair value estimates in which the assets and liabilities are traded or valued, and the reliability of the assumptions used to determine fair value. These levels include: • Level 1: Unadjusted quoted prices of identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date. • Level 2: Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. • Level 3: Significant unobservable inputs that reflect a reporting entity’s own assumptions about the assumptions that market participants would use in pricing an asset or liability. An asset’s or liability’s placement in the fair value hierarchy is based on the lowest level of input that is significant to the fair value estimate. The following methods and assumptions were used by the Company to calculate fair values and related carrying amounts of assets and liabilities measured at fair value on a recurring basis: Investment securities: The fair values for U. S. Treasury securities and marketable equity securities are based on quoted market prices from active exchange markets. The fair values of debt securities are based on pricing from a matrix pricing model. Interest rate swap hedges : The fair value of interest rate swaps is based on an external derivative model using input data of the valuation date. Assets and liabilities measured at fair value on a recurring basis at March 31, 2021 and December 31, 2020 are summarized as follows: Fair Value Measurement Using March 31, 2021 Amount Quoted Prices in Significant Significant U.S. Treasury securities $ 18,978 $ 18,978 State and Municipals: Taxable 23,058 $ 23,058 Tax-exempt 43,552 43,552 Mortgage-backed securities: U.S. Government agencies 36,385 36,385 U.S. Government-sponsored enterprises 20,697 20,697 Corporate debt obligations 13,193 13,193 Total $ 155,863 $ 18,978 $ 136,885 Interest rate swap hedg e $ 829 $ 829 December 31, 2020 Fair Value Measurement Using Amount Quoted Prices in Significant Significant State and municipals: Taxable $ 22,574 $ 22,574 Tax-exempt 18,395 18,395 Mortgage-backed securities: U.S. Government agencies 26,991 26,991 U.S. Government-sponsored enterprises 25,052 25,052 Corporate debt obligations 10,683 10,683 Total $ 103,695 $ 103,695 Interest rate swap hedg e $ 172 $ 172 Other real estate owned charge-off. re-measured Impaired loans Assets and liabilities measured at fair value on a nonrecurring basis at March 31, 2021 and December 31, 2020 are summarized as follows: Fair Value Measurement Using March 31, 2021 Amount (Level 1) (Level 2) (Level 3) Other real estate owned $ 219 $ 219 Impaired loans, net of related allowance 5,246 5,246 Total $ 5,465 $ 5,465 December 31, 2020 Fair Value Measurement Using Amount (Level 1) (Level 2) (Level 3) Other real estate owned $ 422 $ 422 Total $ 422 $ 422 The following tables present additional quantitative information about assets measured at fair value on a nonrecurring basis and for which the Company utilized Level 3 inputs to determine fair value at March 31, 2021 and December 31, 2020. Quantitative Information about Level 3 Fair Value Measurements March 31, 2021 Fair Value Valuation Techniques Unobservable Input Range Other real estate owned $ 219 Appraisal of collateral Appraisal adjustments 0.0% to 3.0% (3.0%) Liquidation expenses 10.0% to 10.0% (10.0%) Impaired loans 5,246 Appraisal of collateral Appraisal adjustments 0.0% to 0.0% (0.0%) Liquidation expenses 7.0% to 7.0% (7.0%) Quantitative Information about Level 3 Fair Value Measurements December 31, 2020 Fair Value Valuation Techniques Unobservable Input Range Other real estate owned $ 422 Appraisal of collateral Appraisal adjustments 20.0% to 14.0% (8.4%) Liquidation expenses 10.0% to 10.0% (10.0%) The carrying and fair values of the Company’s financial instruments at March 31, 2021 and December 31, 2020 and their placement within the fair value hierarchy are as follows: Carrying Fair Value Hierarchy March 31, 2021 Fair Value Quoted Prices in Significant Significant Financial assets: Cash and cash equivalents $ 63,164 $ 63,164 $ 63,164 Investment securities 155,863 155,863 18,978 $ 136,885 Loans held for sale 2,502 2,502 2,502 Net loans (1) 1,079,684 1,061,911 $ 1,061,911 Accrued interest receivable 4,189 4,189 572 3,617 Restricted equity securities 1,774 1,774 Financial liabilities: Deposits $ 1,080,928 $ 1,083,439 $ 1,083,439 Long-term debt 180,644 183,561 183,561 Accrued interest payable 1,347 1,347 1,347 Interest rate swap hedges 829 829 829 Carrying Fair Value Hierarchy December 31, 2020 Fair Value Quoted Prices in Significant Significant Financial assets: Cash and cash equivalents $ 49,781 $ 49,781 $ 49,781 Investment securities available-for-sale 103,695 103,695 $ 103,695 Loans held for sale 4,338 4,338 4,338 Net loans (1) 1,127,039 1,116,618 $ 1,116,618 Accrued interest receivable 4,216 4,216 578 3,638 Restricted equity securities 1,759 1,759 Financial liabilities: Deposits $ 1,015,460 $ 1,018,529 $ 1,018,529 Long-term debt 228,765 231,748 231,748 Accrued interest payable 1,038 1,038 1,038 Interest rate swap hedges 172 172 172 (1) The carrying amount is net of unearned income and the allowance for loan losses in accordance with the adoption of ASU No. 2016-01

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2021
Subsequent Events [Abstract]
Subsequent Events	8. Subsequent Events: In preparing these consolidated financial statements, the Company evaluated the events and transactions that occurred from the date of the financial statements through the date these consolidated financial statements were issued and has not identified any events that require recognition or disclosure in the consolidated financial statements. On January 15, 2021, the Company announced the execution of a definitive agreement whereby AmeriServ Financial, Inc. will acquire Citizens Neighborhood Bank’s (“CNB”), an operating division of Riverview Bank, branch and deposit customers in Meyersdale, Pennsylvania, as well as the deposit customers of CNB’s leased branch in the Borough of Somerset. The transaction is scheduled to close on May 21, 2021. At March 31, 2021, the related deposits totaled $44,713 million and will be acquired for a 3.71% deposit premium and are considered as held for assumption within total deposits.

Summary of significant accoun_2

Summary of significant accounting policies (Policies)	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Nature of Operations	Nature of Operations Riverview Financial Corporation, (the “Company” or “Riverview”), a bank holding company incorporated under the laws of Pennsylvania, provides a full range of financial services through its wholly-owned subsidiary, Riverview Bank (the “Bank”). Riverview Bank, with 25 full-service offices and limited purpose offices, is a full service commercial bank offering a wide range of traditional banking services and financial advisory, insurance and investment services to individuals, municipalities, and small-to-medium sized businesses in the Pennsylvania market areas of Berks, Blair, Bucks, Centre, Clearfield, Dauphin, Huntingdon, Lebanon, Lehigh, Lycoming, Perry, Schuylkill, and Somerset Counties. The Wealth and Trust Management divisions of the Bank provide trust and investment advisory services to the general public and businesses.
Basis of presentation	Basis of presentation: The accompanying unaudited consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP’) for interim financial information and with the instructions to Form 10-Q Regulation S-X. Form 10-K, The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. These estimates and assumptions affect the amounts reported in the financial statements and the disclosures provided. Actual results could differ from those estimates. The operating results and financial position of the Company for the three months ended as of March 31, 2021, are not necessarily indicative of the results of operations and financial position that may be expected in the future. This is especially true given the outbreak of the Coronavirus (“COVID-19”) non-interest COVID-19. COVID-19
Recent Accounting Standards	Accounting Standards Adopted in 2021 In August 2018, the FASB issued ASU No. 2018-14, 715-20) 715-20 or other postretirement plans. The ASU is effective for all entities in fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. Early adoption is permitted. The adoption of the guidance did not have a material effect on the Company’s financial position, results of operations or disclosures. In December 2019, the FASB issued ASU No. 2019-12, No. 2019-12 Recent Accounting Standards In June 2016, the FASB issued ASU No. 2016-13, 2016-13 requires No. 2016-13 available-for-sale 2018-19—Codification 326-20. No. 2019-05 No. 2016-13 2016-13, 326-20 825-10. held-to-maturity instrument-by-instrument No. 2019-11, 805-20. day-one one-time In March 2020, the FASB issued ASU No. 2020-04, 2020-04 2020-04 2020-04 2020-04 January 2021, the FASB issued ASU 2021-01, “Reference Rate Reform (Topic 848): Scope.” ASU 2021-01 clarifies that certain optional expedients and exceptions in ASC 848 for contract modifications and hedge accounting apply to derivatives that are affected by the discounting transition. ASU 2021-01 also amends the expedients and exceptions in ASC 848 to capture the incremental consequences of the scope clarification and to tailor the existing guidance to derivative instruments affected by the discounting transition. ASU 2021-01 was effective upon issuance and generally can be applied through December 31, 2022. The adoption of the guidance is not expected to have a material effect on the Company’s financial position, results of operations or disclosures.

Other comprehensive income (l_2

Other comprehensive income (loss) (Tables)	3 Months Ended
	Mar. 31, 2021
Equity [Abstract]
Summary of Components of Accumulated Other Comprehensive Income (Loss)	The components of accumulated other comprehensive income (loss) included in stockholders’ equity at March 31, 2021 and December 31, 2020 is as follows: March 31, 2021 December 31, 2020 Net unrealized gain (loss) on investment securities available-for-sale $ (1,313 ) $ 1,962 Income tax expense (benefit) (276 ) 412 Net of income taxes (1,037 ) 1,550 Benefit plan adjustments (951 ) (951 ) Income tax expense (benefit) (200 ) (200 ) Net of income taxes (751 ) (751 ) Derivative fair value adjustment 829 172 Income tax expense (benefit) 174 36 Net of income taxes 655 136 Accumulated other comprehensive income (loss) $ (1,133 ) $ 935
Schedule of Other Comprehensive Income (Loss) and Related Tax Effects	Other comprehensive income (loss) and related tax effects for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, 2021 2020 Unrealized gain (loss) on investment securities available-for-sale $ (3,029 ) $ 1,053 Net (gain) loss on the sale of investment securities available-for-sale (1) (246 ) (815 ) Net change in cash flow hedge 657 Other comprehensive income (loss) before taxes (2,618 ) 238 Income tax expense (benefit) (550 ) 50 Other comprehensive income (loss) $ (2,068 ) $ 188 (1) Represents amounts reclassified out of accumulated other comprehensive income and included in gains on sale of investment securities on the consolidated statements of income and comprehensive income.

Earnings per share (Tables)

Earnings per share (Tables)	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Computation of Earnings per Share	The following table provides a reconciliation between the computation of basic earnings per share and diluted earnings per share for the three months ended March 31, 2021 and 2020: Three months ended March 31, 2021 2020 Numerator: Net income $ 3,060 $ 633 Denominator: Basic 9,341,291 9,223,445 Dilutive options 242 9,615 Diluted 9,341,533 9,233,060 Earnings per share: Basic $ 0.33 $ 0.07 Diluted $ 0.33 $ 0.07

Investment securities (Tables)

Investment securities (Tables)	3 Months Ended
	Mar. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Schedule of Amortized Cost and Fair Value of Investment Securities Available-for-Sale Aggregated by Investment Category	The amortized cost and fair value of investment securities available-for-sale March 31, 2021 Amortized Gross Gross Fair U.S. Treasury securities $ 19,396 $ 418 $ 18,978 State and municipals: Taxable 23,779 $ 238 959 23,058 Tax-exempt 44,599 84 1,131 43,552 Mortgage-backed securities: U.S. Government agencies 35,693 929 237 36,385 U.S. Government-sponsored enterprises 20,459 280 42 20,697 Corporate debt obligations 13,250 29 86 13,193 Total $ 157,176 $ 1,560 $ 2,873 $ 155,863 December 31, 2020 Amortized Gross Gross Fair State and municipals: Taxable $ 22,317 $ 400 $ 143 $ 22,574 Tax-exempt 17,988 423 16 18,395 Mortgage-backed securities: U.S. Government agencies 26,051 940 26,991 U.S. Government-sponsored enterprises 24,627 442 17 25,052 Corporate debt obligations 10,750 56 123 10,683 Total $ 101,733 $ 2,261 $ 299 $ 103,695
Schedule of Debt Securities Classified Available-for-Sale Maturity Distribution of Fair Value	The maturity distribution of the fair value, which is the net carrying amount, of the debt securities classified as available-for-sale March 31, 2021 Fair Value Within one year $ 56 After one but within five years 933 After five but within ten years 40,219 After ten years 57,573 98,781 Mortgage-backed securities 57,082 Total $ 155,863
Schedule of Fair Value Gross Unrealized Losses of Investment Securities Unrealized Losses	The fair value and gross unrealized losses of investment securities with unrealized losses for which an other-than-temporary impairment (“OTTI”) has not been recognized at March 31, 2021 and December 31, 2020, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position, are summarized as follows: Less Than 12 Months 12 Months or More Total March 31, 2021 Fair Unrealized Fair Unrealized Fair Unrealized U.S. Treasury securities $ 18,978 $ 418 $ 18,978 $ 418 State and municipals: Taxable 16,261 959 16,261 959 Tax-exempt 39,131 1,131 39,131 1,131 Mortgage-backed securities: U.S. Government agencies 10,182 237 10,182 237 U.S. Government-sponsored enterprises 5,758 42 5,758 42 Corporate debt obligations 6,664 86 6,664 86 Total $ 96,974 $ 2,873 $ 96,974 $ 2,873 Less Than 12 Months 12 Months or More Total December 31, 2020 Fair Unrealized Fair Unrealized Fair Unrealized State and municipals: Taxable $ 11,586 $ 143 $ $ $ 11,586 $ 143 Tax-exempt 1,737 16 1,737 16 Mortgage-backed securities: U.S. Government agencies 5,960 17 5 17 U.S. Government-sponsored enterprises Corporate debt obligations 3,378 123 3,378 123 Total $ 19,283 $ 176 $ 3,378 $ 123 $ 22,661 $ 299

Loans, net, and allowance for_2

Loans, net, and allowance for loan losses (Tables)	3 Months Ended
	Mar. 31, 2021
Receivables [Abstract]
Schedule of Loans Outstanding	The major classifications of loans outstanding, net of deferred loan origination fees and costs at March 31, 2021 and December 31, 2020 are summarized as follows. Net deferred loan costs were March 31, 2021 December 31, 2020 Commercial $ 327,191 $ 359,080 Real estate: Construction 78,277 73,402 Commercial 489,652 502,495 Residential 190,857 197,596 Consumer 5,847 6,666 Total $ 1,091,824 $ 1,139,239
Schedule of Allowance for Loan Losses Account by Major Classification of Loan	The change in the allowance for loan losses account by major loan classifications for the three months ended March 31, 2021 and 2020 is summarized as follows: Real Estate March 31, 2021 Commercial Construction Commercial Residential Consumer Unallocated Total Allowance for loan losses: Beginning Balance, January 1, 2021 $ 1,705 $ 1,117 $ 6,494 $ 2,427 $ 142 $ 315 $ 12,200 Charge-offs (9 ) (37 ) (48 ) (94 ) Recoveries 1 2 31 34 Provisions (303 ) 54 298 (193 ) 2 $ 142 Ending balance $ 1,393 $ 1,134 $ 6,793 $ 2,236 $ 127 $ 457 $ 12,140 Real Estate March 31, 2020 Commercial Construction Commercial Residential Consumer Unallocated Total Allowance for loan losses: Beginning Balance, January 1, 2020 $ 1,953 $ 473 $ 3,115 $ 1,820 $ 155 $ 7,516 Charge-offs (899 ) (95 ) (130 ) (1,124 ) Recoveries 2 1 56 59 Provisions 615 222 896 (107 ) 71 $ 103 1,800 Ending balance $ 1,671 $ 695 $ 3,917 $ 1,713 $ 152 $ 103 $ 8,251 The allocation of the allowance for loan losses and related loans by classifications of loans at March 31, 2021 and December 31, 2020 is summarized as follows: Real Estate March 31, 2021 Commercial Construction Commercial Residential Consumer Unallocated Total Allowance for loan losses: Ending balance $ 1,393 $ 1,134 $ 6,793 $ 2,236 $ 127 $ 457 $ 12,140 Ending balance: individually evaluated for impairment 724 724 Ending balance: collectively evaluated for impairment 1,393 1,134 6,069 2,236 127 457 11,416 Ending balance: purchased credit impaired loans $ $ $ $ $ $ $ Loans receivable: Ending balance $ 327,191 $ 78,277 $ 489,652 $ 190,857 $ 5,847 $ $ 1,091,824 Ending balance: individually evaluated for impairment 1,677 970 6,546 2,386 11,579 Ending balance: collectively evaluated for impairment 325,514 77,307 482,768 188,317 5,847 1,079,753 Ending balance: purchased credit impaired loans $ $ $ 338 $ 154 $ $ $ 492 Real Estate December 31, 2020 Commercial Construction Commercial Residential Consumer Unallocated Total Allowance for loan losses: Ending balance $ 1,705 $ 1,117 $ 6,494 $ 2,427 $ 142 $ 315 $ 12,200 Ending balance: individually evaluated for impairment Ending balance: collectively evaluated for impairment 1,705 1,117 6,494 2,427 142 315 12,200 Ending balance: purchased credit impaired loans $ $ $ $ $ $ $ Loans receivable: Ending balance $ 359,080 $ 73,402 $ 502,495 $ 197,596 $ 6,666 $ $ 1,139,239 Ending balance: individually evaluated for impairment 1,565 6,444 2,494 10,503 Ending balance: collectively evaluated for impairment 357,515 73,402 495,674 194,939 6,666 1,128,196 Ending balance: purchased credit impaired loans $ $ $ 377 $ 163 $ $ $ 540
Summary of Major Classification of Loans Summarized by Aggregate Pass Rating	The following tables present the major classifications of loans summarized by the aggregate pass rating and the classified ratings of special mention, substandard and doubtful within the Company’s internal risk rating system at March 31, 2021 and December 31, 2020: March 31, 2021 Pass Special Substandard Doubtful Total Commercial $ 322,223 $ 2,957 $ 2,011 $ $ 327,191 Real estate: Construction 68,818 129 9,330 78,277 Commercial 435,173 26,608 27,871 489,652 Residential 185,630 1,136 4,091 190,857 Consumer 5,847 5,847 Total $ 1,017,691 $ 30,830 $ 43,303 $ $ 1,091,824 December 31, 2020 Pass Special Substandard Doubtful Total Commercial $ 353,758 $ 3,147 $ 2,175 $ $ 359,080 Real estate: Construction 63,838 1,817 7,747 73,402 Commercial 451,190 29,180 22,125 502,495 Residential 191,775 2,670 3,151 197,596 Consumer 6,666 6,666 Total $ 1,067,227 $ 36,814 $ 35,198 $ $ 1,139,239
Summary of Classes of Loan Portfolio Summarized by Aging Categories of Performing Loans and Nonaccrual Loans	The following tables present the classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans as of March 31, 2021 and December 31, 2020. Purchase credit impaired (“PCI”) loans are excluded from the aging and nonaccrual loan schedules. Accrual Loans March 31, 2021 30-59 Days 60-89 Days 90 or More Total Past Current Nonaccrual Total Loans Commercial $ 34 $ 21 $ $ 55 $ 326,325 $ 811 $ 327,191 Real estate: Construction 34 34 77,272 971 78,277 Commercial 252 252 489,033 29 489,314 Residential 881 21 161 1,063 188,623 1,017 190,703 Consumer 14 6 4 24 5,823 5,847 Total $ 1,215 $ 48 $ 165 $ 1,428 $ 1,087,076 $ 2,828 $ 1,091,332 Purchased credit impaired loans 492 Total Loans $ 1,091,824 Accrual Loans December 31, 2020 30-59 Days 60-89 Days 90 or More Total Past Current Nonaccrual Total Loans Commercial $ 64 $ 1 $ $ 65 $ 358,496 $ 519 $ 359,080 Real estate: Construction 73,402 73,402 Commercial 1,238 4,063 5,301 496,785 32 502,118 Residential 2,125 2,993 146 5,264 191,299 870 197,433 Consumer 22 20 10 52 6,614 6,666 Total $ 3,449 $ 7,077 $ 156 $ 10,682 $ 1,126,596 $ 1,421 $ 1,138,699 Purchased credit impaired loans 540 Total Loans $ 1,139,239
Schedule of Information Concerning Impaired Loans	The following tables summarize information concerning impaired loans as of and for the three months ended March 31, 2021 and 2020, and as of and for the year ended, December 31, 2020, by major loan classification: This Quarter March 31, 2021 Recorded Unpaid Related Average Interest With no related allowance: Commercial $ 1,677 $ 1,787 $ 1,621 $ 41 Real estate: Construction 970 970 485 Commercial 914 914 3,868 34 Residential 2,540 2,670 2,599 33 Consumer Total 6,101 6,341 8,573 108 With an allowance recorded: Commercial Real estate: Construction Commercial 5,970 5,970 $ 724 2,985 48 Residential Consumer Total 5,970 5,970 724 2,985 48 Commercial 1,677 1,787 1,621 41 Real estate: Construction 970 970 485 Commercial 6,884 6,884 724 6,853 82 Residential 2,540 2,670 2,599 33 Consumer Total $ 12,071 $ 12,311 $ 724 $ 11,558 $ 156 Recorded Unpaid Related For the Year Ended December 31, 2020 Average Interest With no related allowance: Commercial $ 1,565 $ 1,675 $ 1,356 $ 416 Real estate: Construction Commercial 6,821 6,821 4,392 311 Residential 2,657 2,787 2,493 146 Consumer Total 11,043 11,283 8,241 873 With an allowance recorded: Commercial 561 Real estate: Construction Commercial 391 65 Residential Consumer Total 952 65 Commercial 1,565 1,675 1,917 416 Real estate: Construction Commercial 6,821 6,821 4,783 376 Residential 2,657 2,787 2,493 146 Consumer Total $ 11,043 $ 11,283 $ 9,193 $ 938 March 31, 2020 Recorded Unpaid Related This Quarter Average Interest With no related allowance: Commercial $ 1,098 $ 1,208 $ 873 $ 68 Real estate: Construction Commercial 2,550 2,550 2,837 47 Residential 2,292 2,422 2,345 25 Consumer Total 5,940 6,180 6,055 140 With an allowance recorded: Commercial 121 121 $ 29 653 Real estate: Construction Commercial 367 367 87 513 4 Residential 45 Consumer Total 488 488 116 1,211 4 Commercial 1,219 1,329 29 1,526 68 Real estate: Construction Commercial 2,917 2,917 87 3,350 51 Residential 2,292 2,422 2,390 25 Consumer Total $ 6,428 $ 6,668 $ 116 $ 7,266 $ 144
Summary of Distribution of OffBalance Sheet Commitments [Table Text Block]	Distribution of off-balance March 31, December 31, Unused portion of lines of credit $ 100,153 $ 92,848 Construction loans 14,906 24,751 Commitments to extend credit 5,740 10,275 Deposit overdraft protection 17,909 18,117 Standby and performance letters of credit 7,313 6,577 Total $ 146,021 $ 152,568

Other assets (Tables)

Other assets (Tables)	3 Months Ended
	Mar. 31, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Components of Other Assets	The components of other assets at March 31, 2021 and December 31, 2020 are summarized as follows: March 31, December 31, Other real estate owned $ 219 $ 422 Bank owned life insurance 31,603 31,425 Restricted equity securities 1,774 1,759 Deferred tax assets 4,066 3,907 Lease right-of-use 2,133 2,278 Other assets 9,866 8,629 Total $ 49,661 $ 48,420

Fair value estimates (Tables)

Fair value estimates (Tables)	3 Months Ended
	Mar. 31, 2021
Fair Value Disclosures [Abstract]
Financial Assets and Liabilities Measured at Fair Value on Recurring Basis	Assets and liabilities measured at fair value on a recurring basis at March 31, 2021 and December 31, 2020 are summarized as follows: Fair Value Measurement Using March 31, 2021 Amount Quoted Prices in Significant Significant U.S. Treasury securities $ 18,978 $ 18,978 State and Municipals: Taxable 23,058 $ 23,058 Tax-exempt 43,552 43,552 Mortgage-backed securities: U.S. Government agencies 36,385 36,385 U.S. Government-sponsored enterprises 20,697 20,697 Corporate debt obligations 13,193 13,193 Total $ 155,863 $ 18,978 $ 136,885 Interest rate swap hedg e $ 829 $ 829 December 31, 2020 Fair Value Measurement Using Amount Quoted Prices in Significant Significant State and municipals: Taxable $ 22,574 $ 22,574 Tax-exempt 18,395 18,395 Mortgage-backed securities: U.S. Government agencies 26,991 26,991 U.S. Government-sponsored enterprises 25,052 25,052 Corporate debt obligations 10,683 10,683 Total $ 103,695 $ 103,695 Interest rate swap hedg e $ 172 $ 172
Summary of Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis	Assets and liabilities measured at fair value on a nonrecurring basis at March 31, 2021 and December 31, 2020 are summarized as follows: Fair Value Measurement Using March 31, 2021 Amount (Level 1) (Level 2) (Level 3) Other real estate owned $ 219 $ 219 Impaired loans, net of related allowance 5,246 5,246 Total $ 5,465 $ 5,465 December 31, 2020 Fair Value Measurement Using Amount (Level 1) (Level 2) (Level 3) Other real estate owned $ 422 $ 422 Total $ 422 $ 422
Additional Quantitative Information about Assets Measured at Fair Value on Nonrecurring Basis	The following tables present additional quantitative information about assets measured at fair value on a nonrecurring basis and for which the Company utilized Level 3 inputs to determine fair value at March 31, 2021 and December 31, 2020. Quantitative Information about Level 3 Fair Value Measurements March 31, 2021 Fair Value Valuation Techniques Unobservable Input Range Other real estate owned $ 219 Appraisal of collateral Appraisal adjustments 0.0% to 3.0% (3.0%) Liquidation expenses 10.0% to 10.0% (10.0%) Impaired loans 5,246 Appraisal of collateral Appraisal adjustments 0.0% to 0.0% (0.0%) Liquidation expenses 7.0% to 7.0% (7.0%) Quantitative Information about Level 3 Fair Value Measurements December 31, 2020 Fair Value Valuation Techniques Unobservable Input Range Other real estate owned $ 422 Appraisal of collateral Appraisal adjustments 20.0% to 14.0% (8.4%) Liquidation expenses 10.0% to 10.0% (10.0%)
Carrying and Fair Values of Riverview's Financial Instruments	The carrying and fair values of the Company’s financial instruments at March 31, 2021 and December 31, 2020 and their placement within the fair value hierarchy are as follows: Carrying Fair Value Hierarchy March 31, 2021 Fair Value Quoted Prices in Significant Significant Financial assets: Cash and cash equivalents $ 63,164 $ 63,164 $ 63,164 Investment securities 155,863 155,863 18,978 $ 136,885 Loans held for sale 2,502 2,502 2,502 Net loans (1) 1,079,684 1,061,911 $ 1,061,911 Accrued interest receivable 4,189 4,189 572 3,617 Restricted equity securities 1,774 1,774 Financial liabilities: Deposits $ 1,080,928 $ 1,083,439 $ 1,083,439 Long-term debt 180,644 183,561 183,561 Accrued interest payable 1,347 1,347 1,347 Interest rate swap hedges 829 829 829 Carrying Fair Value Hierarchy December 31, 2020 Fair Value Quoted Prices in Significant Significant Financial assets: Cash and cash equivalents $ 49,781 $ 49,781 $ 49,781 Investment securities available-for-sale 103,695 103,695 $ 103,695 Loans held for sale 4,338 4,338 4,338 Net loans (1) 1,127,039 1,116,618 $ 1,116,618 Accrued interest receivable 4,216 4,216 578 3,638 Restricted equity securities 1,759 1,759 Financial liabilities: Deposits $ 1,015,460 $ 1,018,529 $ 1,018,529 Long-term debt 228,765 231,748 231,748 Accrued interest payable 1,038 1,038 1,038 Interest rate swap hedges 172 172 172 (1) The carrying amount is net of unearned income and the allowance for loan losses in accordance with the adoption of ASU No. 2016-01

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2021Office
Summary Of Significant Accounting Policies [Line Items]
Number of full service offices	25
Number of limited purpose offices	3

Other comprehensive income (l_3

Other comprehensive income (loss) - Summary of Components of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss)	$ (1,133)	$ 935
Derivative fair value adjustment	829	172
Income tax expense (benefit)	174	36
Net of income taxes	655	136
Unrealized Gain (Loss) on Available-for-Sale [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), before tax	(1,313)	1,962
Income tax expense (benefit)	(276)	412
Accumulated other comprehensive income (loss)	(1,037)	1,550
Defined Benefit Pension Items [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), before tax	(951)	(951)
Income tax expense (benefit)	(200)	(200)
Accumulated other comprehensive income (loss)	$ (751)	$ (751)

Other comprehensive income (l_4

Other comprehensive income (loss) - Schedule of Other Comprehensive Income (Loss) and Related Tax Effects (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Other Comprehensive Income (Loss), Tax [Abstract]
Unrealized gain (loss) on investment securities available-for-sale		$ (3,029)	$ 1,053
Net (gain) loss on the sale of investment securities available-for-sale	[1]	(246)	(815)
Benefit plans:
Net change in cash flow hedge		657
Other comprehensive income (loss) before taxes		(2,618)	238
Income tax expense (benefit)		(550)	50
Other comprehensive income (loss)		$ (2,068)	$ 188
[1]	Represents amounts reclassified out of accumulated other comprehensive income and included in gains on sale of investment securities on the consolidated statements of income and comprehensive income.

Earnings per share - Additional

Earnings per share - Additional Information (Detail) - shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Stock options excluded from the dilutive earnings per share calculation	151,300	37,200

Earnings per share - Computatio

Earnings per share - Computation of Earnings per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Numerator:
Net income	$ 3,060	$ 633
Denominator:
Basic	9,341,291	9,223,445
Dilutive options	242	9,615
Diluted	9,341,533	9,233,060
Basic	$ 0.33	$ 0.07
Diluted	$ 0.33	$ 0.07

Investment Securities - Schedul

Investment Securities - Schedule of Amortized Cost and Fair Value of Investment Securities Available-for-Sale Aggregated by Investment Category (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 157,176	$ 101,733
Gross Unrealized Gains	1,560	2,261
Gross Unrealized Losses	2,873	299
Fair Value	155,863	103,695
U.S. Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	19,396
Gross Unrealized Losses	418
Fair Value	18,978
Taxable [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	23,779	22,317
Gross Unrealized Gains	238	400
Gross Unrealized Losses	959	143
Fair Value	23,058	22,574
Tax-Exempt [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	44,599	17,988
Gross Unrealized Gains	84	423
Gross Unrealized Losses	1,131	16
Fair Value	43,552	18,395
Mortgage-Backed Securities - U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	35,693	26,051
Gross Unrealized Gains	929	940
Gross Unrealized Losses	237
Fair Value	36,385	26,991
Mortgage-backed Securities - U.S. Government-sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	20,459	24,627
Gross Unrealized Gains	280	442
Gross Unrealized Losses	42	17
Fair Value	20,697	25,052
Corporate Debt Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	13,250	10,750
Gross Unrealized Gains	29	56
Gross Unrealized Losses	86	123
Fair Value	$ 13,193	$ 10,683

Investment Securities - Additio

Investment Securities - Additional Information (Detail) $ in Thousands	Mar. 31, 2021USD ($)Securities	Dec. 31, 2020USD ($)Securities
Schedule of Available-for-sale Securities [Line Items]
Securities pledged to secure public deposits, fair value | $	$ 99,013	$ 71,676
Available-for-sale securities in unrealized loss position, number of securities	66	16
Taxable [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities in unrealized loss position, number of securities	15	9
Tax-exempt Municipal Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities in unrealized loss position, number of securities	38	3
Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities in unrealized loss position, number of securities		3
Corporate Debt Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities in unrealized loss position, number of securities	4	1
U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities in unrealized loss position, number of securities	2
U.S. Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities in unrealized loss position, number of securities	4

Investment Securities - Sched_2

Investment Securities - Schedule of Debt Securities Classified Available-for-Sale Maturity Distribution of Fair Value (Detail) $ in Thousands	Mar. 31, 2021USD ($)
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Within one year, Fair Value	$ 56
Available-for-sale securities, After one but within five years, Fair Value	933
Available-for-sale securities, After five but within ten years, Fair Value	40,219
Available-for-sale securities, After ten years, Fair Value	57,573
Available-for-sale securities, Single maturity, Fair Value	98,781
Total available-for-sale securities, Fair Value	155,863
Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Without single maturity, Fair Value	$ 57,082

Investment Securities Available

Investment Securities Available-for-Sale - Schedule of Fair Value Gross Unrealized Losses of Investment Securities Unrealized Losses (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities in a continuous loss position, Less Than 12 Months, Fair Value	$ 96,974	$ 19,283
Available-for-sale securities in a continuous loss position, Less Than 12 Months, Unrealized Losses	2,873	176
Available-for-sale securities in a continuous loss position, More Than 12 Months, Fair Value		3,378
Available-for-sale securities in a continuous loss position, More Than 12 Months, Unrealized Losses		123
Available-for-sale securities in a continuous loss position, Fair Value	96,974	22,661
Available-for-sale securities in a continuous loss position, Unrealized Losses	2,873	299
U.S. Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities in a continuous loss position, Less Than 12 Months, Fair Value	18,978
Available-for-sale securities in a continuous loss position, Less Than 12 Months, Unrealized Losses	418
Available-for-sale securities in a continuous loss position, Fair Value	18,978
Available-for-sale securities in a continuous loss position, Unrealized Losses	418
Taxable [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities in a continuous loss position, Less Than 12 Months, Fair Value	16,261	11,586
Available-for-sale securities in a continuous loss position, Less Than 12 Months, Unrealized Losses	959	143
Available-for-sale securities in a continuous loss position, Fair Value	16,261	11,586
Available-for-sale securities in a continuous loss position, Unrealized Losses	959	143
Tax-Exempt [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities in a continuous loss position, Less Than 12 Months, Fair Value	39,131	1,737
Available-for-sale securities in a continuous loss position, Less Than 12 Months, Unrealized Losses	1,131	16
Available-for-sale securities in a continuous loss position, Fair Value	39,131	1,737
Available-for-sale securities in a continuous loss position, Unrealized Losses	1,131	16
Mortgage-Backed Securities - U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities in a continuous loss position, Less Than 12 Months, Fair Value	10,182	5,960
Available-for-sale securities in a continuous loss position, Less Than 12 Months, Unrealized Losses	237	17
Available-for-sale securities in a continuous loss position, Fair Value	10,182	5,960
Available-for-sale securities in a continuous loss position, Unrealized Losses	237	17
Mortgage-backed Securities - U.S. Government-sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities in a continuous loss position, Less Than 12 Months, Fair Value	5,758
Available-for-sale securities in a continuous loss position, Less Than 12 Months, Unrealized Losses	42
Available-for-sale securities in a continuous loss position, Fair Value	5,758
Available-for-sale securities in a continuous loss position, Unrealized Losses	42
Corporate Debt Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities in a continuous loss position, Less Than 12 Months, Fair Value	6,664
Available-for-sale securities in a continuous loss position, Less Than 12 Months, Unrealized Losses	86
Available-for-sale securities in a continuous loss position, More Than 12 Months, Fair Value		3,378
Available-for-sale securities in a continuous loss position, More Than 12 Months, Unrealized Losses		123
Available-for-sale securities in a continuous loss position, Fair Value	6,664	3,378
Available-for-sale securities in a continuous loss position, Unrealized Losses	$ 86	$ 123

Loans, Net, and Allowance for_3

Loans, Net, and Allowance for Loan Losses - Additional Information (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)Contract	Mar. 31, 2020USD ($)Contract	Dec. 31, 2020USD ($)
Financing Receivable, Impaired [Line Items]
Deferred loan fees, net	$ 649		$ 701
Interest income, related to impaired loans	28	$ 21
Troubled debt restructurings, amount	$ 9,960	$ 2,680	9,985
Troubled Debt Restructurings, Number of Contracts | Contract	0	0
Subsequently defaulted number of contracts | Contract	0	1
Financing receivable modifications subsequent default recorded investment		$ 368
Unused Commitments	$ 146,021		152,568
Fedrel Reserve Board Ppplf [Member]
Financing Receivable, Impaired [Line Items]
Deferred loan fees, net	4,974		5,075
Loans Payable	214,365		251,810
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Unused Commitments	$ 93		$ 93

Loans, Net, and Allowance for_4

Loans, Net, and Allowance for Loan Losses - Schedule of Loans Outstanding (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Impaired [Line Items]
Financing Receivable	$ 1,091,824	$ 1,139,239
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable	327,191	359,080
Construction [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable	78,277	73,402
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable	489,652	502,495
Residential [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable	190,857	197,596
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable	$ 5,847	$ 6,666

Loans, Net, and Allowance for_5

Loans, Net, and Allowance for Loan Losses - Schedule of Allowance for Loan Losses Account by Major Classification of Loan (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning balance	$ 12,200	$ 7,516
Allowance for Loan Losses, Charge-offs	(94)	(1,124)
Allowance for Loan Losses, Recoveries	34	59
Allowance for Loan Losses, Provision		1,800
Allowance for Loan Losses, Ending balance	12,140	8,251
Ending balance: individually evaluated for impairment	724
Ending balance: collectively evaluated for impairment	11,416		$ 12,200
Ending balance	1,091,824		1,139,239
Ending balance: individually evaluated for impairment	11,579		10,503
Ending balance: collectively evaluated for impairment	1,079,753		1,128,196
Ending balance: purchased credit impaired loans	492		540
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning balance	1,705	1,953
Allowance for Loan Losses, Charge-offs	(9)	(899)
Allowance for Loan Losses, Recoveries		2
Allowance for Loan Losses, Provision	(303)	615
Allowance for Loan Losses, Ending balance	1,393	1,671
Ending balance: collectively evaluated for impairment	1,393		1,705
Ending balance	327,191		359,080
Ending balance: individually evaluated for impairment	1,677		1,565
Ending balance: collectively evaluated for impairment	325,514		357,515
Real Estate Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning balance	1,117	473
Allowance for Loan Losses, Charge-offs	(37)
Allowance for Loan Losses, Provision	54	222
Allowance for Loan Losses, Ending balance	1,134	695
Ending balance: collectively evaluated for impairment	1,134		1,117
Ending balance	78,277		73,402
Ending balance: individually evaluated for impairment	970
Ending balance: collectively evaluated for impairment	77,307		73,402
Real Estate Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning balance	6,494	3,115
Allowance for Loan Losses, Charge-offs		(95)
Allowance for Loan Losses, Recoveries	1	1
Allowance for Loan Losses, Provision	298	896
Allowance for Loan Losses, Ending balance	6,793	3,917
Ending balance: individually evaluated for impairment	724
Ending balance: collectively evaluated for impairment	6,069		6,494
Ending balance	489,652		502,495
Ending balance: individually evaluated for impairment	6,546		6,444
Ending balance: collectively evaluated for impairment	482,768		495,674
Ending balance: purchased credit impaired loans	338		377
Real Estate Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning balance	2,427	1,820
Allowance for Loan Losses, Recoveries	2
Allowance for Loan Losses, Provision	(193)	(107)
Allowance for Loan Losses, Ending balance	2,236	1,713
Ending balance: collectively evaluated for impairment	2,236		2,427
Ending balance	190,857		197,596
Ending balance: individually evaluated for impairment	2,386		2,494
Ending balance: collectively evaluated for impairment	188,317		194,939
Ending balance: purchased credit impaired loans	154		163
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning balance	142	155
Allowance for Loan Losses, Charge-offs	(48)	(130)
Allowance for Loan Losses, Recoveries	31	56
Allowance for Loan Losses, Provision	2	71
Allowance for Loan Losses, Ending balance	127	152
Ending balance: collectively evaluated for impairment	127		142
Ending balance	5,847		6,666
Ending balance: collectively evaluated for impairment	5,847		6,666
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning balance	315
Allowance for Loan Losses, Provision	142	103
Allowance for Loan Losses, Ending balance	457	$ 103
Ending balance: collectively evaluated for impairment	457		$ 315
Ending balance: purchased credit impaired loans	$ 457

Loans, Net, and Allowance for_6

Loans, Net, and Allowance for Loan Losses - Summary of Major Classification of Loans Summarized by Aggregate Pass Rating (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	$ 1,091,824	$ 1,139,239
Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	327,191	359,080
Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	78,277	73,402
Real Estate Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	489,652	502,495
Real Estate Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	190,857	197,596
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	5,847	6,666
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	1,017,691	1,067,227
Pass [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	322,223	353,758
Pass [Member] | Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	68,818	63,838
Pass [Member] | Real Estate Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	435,173	451,190
Pass [Member] | Real Estate Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	185,630	191,775
Pass [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	5,847	6,666
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	30,830	36,814
Special Mention [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	2,957	3,147
Special Mention [Member] | Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	129	1,817
Special Mention [Member] | Real Estate Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	26,608	29,180
Special Mention [Member] | Real Estate Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	1,136	2,670
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	43,303	35,198
Substandard [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	2,011	2,175
Substandard [Member] | Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	9,330	7,747
Substandard [Member] | Real Estate Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	27,871	22,125
Substandard [Member] | Real Estate Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	$ 4,091	$ 3,151

Loans, Net, and Allowance for_7

Loans, Net, and Allowance for Loan Losses - Summary of Classes of Loan Portfolio Summarized by Aging Categories of Performing Loans and Nonaccrual Loans (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	$ 1,091,824	$ 1,139,239
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	327,191	359,080
Real Estate Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	78,277	73,402
Real Estate Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	489,652	502,495
Real Estate Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	190,857	197,596
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	5,847	6,666
Performing Loans and Non Accrual Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,428	10,682
Current	1,087,076	1,126,596
Nonaccrual Loans	2,828	1,421
Total	1,091,332	1,138,699
Performing Loans and Non Accrual Loans [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	55	65
Current	326,325	358,496
Nonaccrual Loans	811	519
Total	327,191	359,080
Performing Loans and Non Accrual Loans [Member] | Real Estate Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	34
Current	77,272	73,402
Nonaccrual Loans	971
Total	78,277	73,402
Performing Loans and Non Accrual Loans [Member] | Real Estate Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	252	5,301
Current	489,033	496,785
Nonaccrual Loans	29	32
Total	489,314	502,118
Performing Loans and Non Accrual Loans [Member] | Real Estate Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,063	5,264
Current	188,623	191,299
Nonaccrual Loans	1,017	870
Total	190,703	197,433
Performing Loans and Non Accrual Loans [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	24	52
Current	5,823	6,614
Total	5,847	6,666
Performing Loans and Non Accrual Loans [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,215	3,449
Performing Loans and Non Accrual Loans [Member] | 30-59 Days Past Due [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	34	64
Performing Loans and Non Accrual Loans [Member] | 30-59 Days Past Due [Member] | Real Estate Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	34
Performing Loans and Non Accrual Loans [Member] | 30-59 Days Past Due [Member] | Real Estate Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	252	1,238
Performing Loans and Non Accrual Loans [Member] | 30-59 Days Past Due [Member] | Real Estate Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	881	2,125
Performing Loans and Non Accrual Loans [Member] | 30-59 Days Past Due [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	14	22
Performing Loans and Non Accrual Loans [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	48	7,077
Performing Loans and Non Accrual Loans [Member] | 60-89 Days Past Due [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	21	1
Performing Loans and Non Accrual Loans [Member] | 60-89 Days Past Due [Member] | Real Estate Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		4,063
Performing Loans and Non Accrual Loans [Member] | 60-89 Days Past Due [Member] | Real Estate Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	21	2,993
Performing Loans and Non Accrual Loans [Member] | 60-89 Days Past Due [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6	20
Performing Loans and Non Accrual Loans [Member] | 90 Days and Greater [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	165	156
Performing Loans and Non Accrual Loans [Member] | 90 Days and Greater [Member] | Real Estate Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	161	146
Performing Loans and Non Accrual Loans [Member] | 90 Days and Greater [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4	10
Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	$ 492	$ 540

Loans, Net, and Allowance for_8

Loans, Net, and Allowance for Loan Losses - Schedule of Information Concerning Impaired Loans (Detail) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance recorded, recorded investment	$ 6,101	$ 5,940	$ 11,043
Impaired loans with an allowance recorded, recorded investment	5,970	488
Impaired loans, recorded investment	12,071	6,428	11,043
Impaired loans with no related allowance recorded, unpaid principal balance	6,341	6,180	11,283
Impaired loans with an allowance recorded, unpaid principal balance	5,970	488
Impaired loans, unpaid principal balance	12,311	6,668	11,283
Impaired loans with an allowance recorded, related allowance	724	116
Impaired loans, related allowance		116
Impaired loans with no related allowance recorded, average recorded investment	8,573	6,055	8,241
Impaired loans with an allowance recorded, average recorded investment	2,985	1,211	952
Impaired loans, average recorded investment	11,558	7,266	9,193
Impaired loans with no related allowance recorded, interest income recognized	108	140	873
Impaired loans with an allowance recorded, interest income recognized	48	4	65
Impaired loans, interest income recognized	156	144	938
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance recorded, recorded investment	1,677	1,098	1,565
Impaired loans with an allowance recorded, recorded investment		121
Impaired loans, recorded investment	1,677	1,219	1,565
Impaired loans with no related allowance recorded, unpaid principal balance	1,787	1,208	1,675
Impaired loans with an allowance recorded, unpaid principal balance		121
Impaired loans, unpaid principal balance	1,787	1,329	1,675
Impaired loans with an allowance recorded, related allowance		29
Impaired loans, related allowance		29
Impaired loans with no related allowance recorded, average recorded investment	1,621	873	1,356
Impaired loans with an allowance recorded, average recorded investment		653	561
Impaired loans, average recorded investment	1,621	1,526	1,917
Impaired loans with no related allowance recorded, interest income recognized	41	68	416
Impaired loans, interest income recognized	41	68	416
Real Estate Commercial [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance recorded, recorded investment	914	2,550	6,821
Impaired loans with an allowance recorded, recorded investment	5,970	367
Impaired loans, recorded investment	6,884	2,917	6,821
Impaired loans with no related allowance recorded, unpaid principal balance	914	2,550	6,821
Impaired loans with an allowance recorded, unpaid principal balance	5,970	367
Impaired loans, unpaid principal balance	6,884	2,917	6,821
Impaired loans with an allowance recorded, related allowance	724	87
Impaired loans, related allowance		87
Impaired loans with no related allowance recorded, average recorded investment	3,868	2,837	4,392
Impaired loans with an allowance recorded, average recorded investment	2,985	513	391
Impaired loans, average recorded investment	6,853	3,350	4,783
Impaired loans with no related allowance recorded, interest income recognized	34	47	311
Impaired loans with an allowance recorded, interest income recognized	48	4	65
Impaired loans, interest income recognized	82	51	376
Real Estate Residential [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance recorded, recorded investment	2,540	2,292	2,657
Impaired loans, recorded investment	2,540	2,292	2,657
Impaired loans with no related allowance recorded, unpaid principal balance	2,670	2,422	2,787
Impaired loans, unpaid principal balance	2,670	2,422	2,787
Impaired loans with no related allowance recorded, average recorded investment	2,599	2,345	2,493
Impaired loans with an allowance recorded, average recorded investment		45
Impaired loans, average recorded investment	2,599	2,390	2,493
Impaired loans with no related allowance recorded, interest income recognized	33	25	146
Impaired loans, interest income recognized	33	$ 25	$ 146
Real Estate Construction [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance recorded, recorded investment	970
Impaired loans with an allowance recorded, recorded investment	970
Impaired loans with no related allowance recorded, unpaid principal balance	970
Impaired loans with an allowance recorded, unpaid principal balance	970
Impaired loans with no related allowance recorded, average recorded investment	485
Impaired loans with an allowance recorded, average recorded investment	$ 485

Loans, net, and allowance for_9

Loans, net, and allowance for loan losses - Summary of Distribution of Off-Balance Sheet Commitments (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Distribution Of Off BalanceSheet Commitments [Line Items]
Unused Commitments	$ 146,021	$ 152,568
Unused portion of lines of credit [Member]
Distribution Of Off BalanceSheet Commitments [Line Items]
Unused Commitments	100,153	92,848
Construction Loans [Member]
Distribution Of Off BalanceSheet Commitments [Line Items]
Unused Commitments	14,906	24,751
Commitments to extend credit [Member]
Distribution Of Off BalanceSheet Commitments [Line Items]
Unused Commitments	5,740	10,275
Deposit overdraft protection [Member]
Distribution Of Off BalanceSheet Commitments [Line Items]
Unused Commitments	17,909	18,117
Standby and performance letters of credit [Member]
Distribution Of Off BalanceSheet Commitments [Line Items]
Unused Commitments	$ 7,313	$ 6,577

Other Assets - Components of Ot

Other Assets - Components of Other Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Other Assets [Abstract]
Other real estate owned	$ 219	$ 422
Bank owned life insurance	31,603	31,425
Restricted equity securities	1,774	1,759
Deferred tax assets	4,066	3,907
Lease right-of-use assets	2,133	2,278
Other assets	9,866	8,629
Total	$ 49,661	$ 48,420

Fair value estimates - Financia

Fair value estimates - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	$ 155,863	$ 103,695
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	18,978
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	136,885	103,695
Fair Value Measurements Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	155,863	103,695
Fair Value Measurements Recurring [Member] | U.S. Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	18,978
Fair Value Measurements Recurring [Member] | Taxable [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	23,058	22,574
Fair Value Measurements Recurring [Member] | Tax-Exempt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	43,552	18,395
Fair Value Measurements Recurring [Member] | Mortgage-Backed Securities - U.S. Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	36,385	26,991
Fair Value Measurements Recurring [Member] | Mortgage-backed Securities - U.S. Government-sponsored Enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	20,697	25,052
Fair Value Measurements Recurring [Member] | Corporate Debt Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	13,193	10,683
Fair Value Measurements Recurring [Member] | Interest Rate Swap Hedge [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	829	172
Fair Value Measurements Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	18,978
Fair Value Measurements Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	18,978
Fair Value Measurements Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	136,885	103,695
Fair Value Measurements Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Taxable [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	23,058	22,574
Fair Value Measurements Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Tax-Exempt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	43,552	18,395
Fair Value Measurements Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Mortgage-Backed Securities - U.S. Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	36,385	26,991
Fair Value Measurements Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Mortgage-backed Securities - U.S. Government-sponsored Enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	20,697	25,052
Fair Value Measurements Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Corporate Debt Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	13,193	10,683
Fair Value Measurements Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Interest Rate Swap Hedge [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	$ 829	$ 172

Fair value estimates - Summary

Fair value estimates - Summary of Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis (Detail) - Fair Value Measurements Nonrecurring [Member] - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	$ 219	$ 422
Impaired loans, net of related allowance	5,246
Total	5,465	422
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	219	422
Impaired loans, net of related allowance	5,246
Total	$ 5,465	$ 422

Fair value estimates- Additiona

Fair value estimates- Additional Quantitative Information about Assets Measured at Fair Value on Nonrecurring Basis (Detail) - Fair Value Measurements Nonrecurring [Member] - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Estimate	$ 5,465	$ 422
Other Real Estate Owned [Member] | Level 3 Fair Value Measurements, Appraisal Adjustments [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Estimate	$ 219	$ 422
Valuation Technique	Appraisal of collateral	Appraisal of collateral
Unobservable Input	Appraisal adjustments	Appraisal adjustments
Other Real Estate Owned [Member] | Level 3 Fair Value Measurements, Liquidation Expenses [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Input	Liquidation expenses	Liquidation expenses
Impaired Loan [Member] | Level 3 Fair Value Measurements, Appraisal Adjustments [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Estimate	$ 5,246
Valuation Technique	Appraisal of collateral
Unobservable Input	Appraisal adjustments
Impaired Loan [Member] | Level 3 Fair Value Measurements, Liquidation Expenses [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Input	Liquidation expenses
Minimum [Member] | Other Real Estate Owned [Member] | Level 3 Fair Value Measurements, Appraisal Adjustments [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range (Weighted Average)	0.00%	20.00%
Minimum [Member] | Other Real Estate Owned [Member] | Level 3 Fair Value Measurements, Liquidation Expenses [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range (Weighted Average)	10.00%	10.00%
Minimum [Member] | Impaired Loan [Member] | Level 3 Fair Value Measurements, Appraisal Adjustments [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range (Weighted Average)	0.00%
Minimum [Member] | Impaired Loan [Member] | Level 3 Fair Value Measurements, Liquidation Expenses [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range (Weighted Average)	7.00%
Maximum [Member] | Other Real Estate Owned [Member] | Level 3 Fair Value Measurements, Appraisal Adjustments [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range (Weighted Average)	3.00%	14.00%
Maximum [Member] | Other Real Estate Owned [Member] | Level 3 Fair Value Measurements, Liquidation Expenses [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range (Weighted Average)	10.00%	10.00%
Maximum [Member] | Impaired Loan [Member] | Level 3 Fair Value Measurements, Appraisal Adjustments [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range (Weighted Average)	0.00%
Maximum [Member] | Impaired Loan [Member] | Level 3 Fair Value Measurements, Liquidation Expenses [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range (Weighted Average)	7.00%
Weighted Average [Member] | Other Real Estate Owned [Member] | Level 3 Fair Value Measurements, Appraisal Adjustments [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range (Weighted Average)	3.00%	8.40%
Weighted Average [Member] | Other Real Estate Owned [Member] | Level 3 Fair Value Measurements, Liquidation Expenses [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range (Weighted Average)	10.00%	10.00%
Weighted Average [Member] | Impaired Loan [Member] | Level 3 Fair Value Measurements, Appraisal Adjustments [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range (Weighted Average)	0.00%
Weighted Average [Member] | Impaired Loan [Member] | Level 3 Fair Value Measurements, Liquidation Expenses [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range (Weighted Average)	7.00%

Fair value estimates- Carrying

Fair value estimates- Carrying and Fair Values of Riverview's Financial Instruments (Detail) - USD ($) $ in Thousands		Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Financial assets:
Cash and cash equivalents		$ 63,164	$ 49,781	$ 73,235	$ 50,348
Investment securities available-for-sale		155,863	103,695
Loans held for sale		2,502	4,338
Net loans		1,079,684	1,127,039
Accrued interest receivable		4,189	4,216
Restricted equity securities		1,774	1,759
Financial liabilities:
Deposits		1,080,928	1,015,460
Long-term debt		180,644	228,765
Accrued interest payable		1,347	1,038
Carrying Amount [Member]
Financial assets:
Cash and cash equivalents		63,164	49,781
Investment securities available-for-sale		155,863	103,695
Loans held for sale		2,502	4,338
Net loans	[1]	1,079,684	1,127,039
Accrued interest receivable		4,189	4,216
Restricted equity securities		1,774	1,759
Financial liabilities:
Deposits		1,080,928	1,015,460
Long-term debt		180,644	228,765
Accrued interest payable		1,347	1,038
Interest rate swap hedges		829	172
Fair Value [Member]
Financial assets:
Cash and cash equivalents		63,164	49,781
Investment securities available-for-sale		155,863	103,695
Loans held for sale		2,502	4,338
Net loans	[1]	1,061,911	1,116,618
Accrued interest receivable		4,189	4,216
Restricted equity securities		1,774	1,759
Financial liabilities:
Deposits		1,083,439	1,018,529
Long-term debt		183,561	231,748
Accrued interest payable		1,347	1,038
Interest rate swap hedges		829	172
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial assets:
Cash and cash equivalents		63,164	49,781
Investment securities available-for-sale		18,978
Significant Other Observable Inputs (Level 2) [Member]
Financial assets:
Investment securities available-for-sale		136,885	103,695
Loans held for sale		2,502	4,338
Accrued interest receivable		572	578
Financial liabilities:
Deposits		1,083,439	1,018,529
Long-term debt		183,561	231,748
Accrued interest payable		1,347	1,038
Interest rate swap hedges		829	172
Significant Unobservable Inputs (Level 3) [Member]
Financial assets:
Net loans	[1]	1,061,911	1,116,618
Accrued interest receivable		$ 3,617	$ 3,638
[1]	The carrying amount is net of unearned income and the allowance for loan losses in accordance with the adoption of ASU No. 2016-01 where the fair value of loans as of March 31, 2021 and December 31, 2021 was measured using an exit price notion.

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) $ in Millions	Mar. 31, 2021USD ($)
Premium deposits	$ 44,713
Percentage of interest on premium deposit	3.71%