BankGuam Holding (BKGM) 10-Q 10 Nov 22 2022 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2022	Oct. 31, 2022
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2022
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q3
Trading Symbol	BKGM
Entity Registrant Name	BankGuam Holding Company
Entity Central Index Key	0001527383
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		9,727,743
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity File Number	000-54483
Entity Tax Identification Number	66-0770448
Entity Address, Address Line One	P.O. Box BW
Entity Address, City or Town	Hagåtña
Entity Address, Country	GU
Entity Address, Postal Zip Code	96932
City Area Code	671
Local Phone Number	472-5300
Document Quarterly Report	true
Document Transition Report	false
Entity Incorporation, State or Country Code	GU
Entity Interactive Data Current	Yes
Title of 12(g) Security	Common Stock, $0.2083 par value per share

Condensed Consolidated Statemen

Condensed Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
ASSETS
Cash and due from banks	$ 38,850	$ 36,660
Interest bearing deposits in banks	226,163	520,743
Total cash and cash equivalents	265,013	557,403
Restricted cash	150	150
Investment securities available-for-sale, at fair value	499,235	499,366
Investment securities held-to-maturity, at amortized cost (Fair Value $240,329 at 9/30/2022 and $310,372 at 12/31/2021)	317,593	312,294
Federal Home Loan Bank stock, at cost	3,318	2,814
Loans, net of allowance for loan losses ($36,137 at 9/30/2022 and $34,408 at 12/31/2021)	1,306,889	1,283,690
Accrued interest receivable	6,054	6,715
Premises and equipment, net	20,381	20,802
Goodwill	13,014	13,014
Intangible assets	10,165	10,720
Other assets	122,935	84,620
Total assets	2,564,747	2,791,588
Deposits:
Non-interest bearing	881,754	981,537
Interest bearing	1,469,395	1,551,694
Total deposits	2,351,149	2,533,231
Accrued interest payable	30	46
Subordinated debt, net	34,451	34,400
Other liabilities	50,692	43,162
Total liabilities	2,436,322	2,610,839
Commitments and contingencies (Note 6)
Stockholders’ equity:
Common stock $0.2083 par value; 48,000 shares authorized; 9,777 and 9,770 shares issued and 9,728 and 9,721 shares outstanding at 9/30/2022 and 12/31/2021, respectively	2,034	2,033
Preferred stock $100 par value; 300 shares authorized; 9.8 shares issued and outstanding at 9/30/2022 and 12/31/2021, respectively	980	980
Additional paid-in capital, Common stock	24,989	24,910
Additional paid-in capital, Preferred stock	8,803	8,803
Retained earnings	162,725	153,740
Accumulated other comprehensive (loss) income	(78,032)	(16,721)
Non-controlling interest	7,216	7,294
Common stock in treasury, at cost (32 shares)	(290)	(290)
Total stockholders’ equity	128,425	180,749
Total liabilities and stockholders’ equity	$ 2,564,747	$ 2,791,588

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Statement Of Financial Position [Abstract]
Investment securities held-to-maturity, Fair Value	$ 240,329	$ 310,372
Loans, net of allowance for loan losses	$ 36,137	$ 34,408
Common stock, par value	$ 0.2083	$ 0.2083
Common stock, shares authorized	48,000,000	48,000,000
Common stock, shares issued	9,777,000	9,770,000
Common stock, shares outstanding	9,728,000	9,721,000
Preferred stock, par value	$ 100	$ 100
Preferred stock, shares authorized	300,000	300,000
Preferred stock, shares issued	9,800	9,800
Preferred stock, shares outstanding	9,800	9,800
Common stock in treasury, shares	32,000	32,000

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Interest income:
Loans	$ 19,031	$ 18,011	$ 54,399	$ 53,903
Investment securities	3,605	2,591	10,188	7,190
Deposits with banks	1,397	294	2,286	508
Total interest income	24,033	20,896	66,873	61,601
Interest expense:
Savings deposits	37	112	114	326
Time deposits	3	7	11	27
Other borrowed funds	476	481	1,417	957
Total interest expense	516	600	1,542	1,310
Net interest income	23,517	20,296	65,331	60,291
Provision for loan losses	1,425	2,475	4,275	5,425
Net interest income, after provision for loan losses	22,092	17,821	61,056	54,866
Non-interest income:
Service charges and fees	4,935	4,336	15,487	7,843
Gain on sale of investment securities		10		281
Income from merchant services, net	966	721	2,509	2,127
Cardholders income, net	1,131	994	2,669	2,239
Trustee fees	861	136	1,676	437
Other income	743	4,146	2,213	7,101
Total non-interest income	8,636	10,343	24,554	20,028
Non-interest expense:
Salaries and employee benefits	9,904	10,086	28,745	26,786
Occupancy	2,603	2,268	7,267	6,529
Technology, equipment and depreciation	5,973	3,149	16,641	9,173
Insurance	468	486	1,391	1,491
Telecommunications	417	419	1,271	1,174
FDIC assessment	299	709	917	1,569
Professional services	661	784	2,268	1,976
Contract services	484	1,282	1,403	2,622
Other real estate owned	13	(28)	38	(1)
Stationery and supplies	203	129	534	202
Training and education	320	93	887	177
General, administrative and other	2,673	1,913	8,082	4,852
Total non-interest expense	24,018	21,290	69,444	56,550
Income before income taxes	6,710	6,874	16,166	18,344
Income tax expense	1,388	1,311	3,201	3,576
Net income	5,322	5,563	12,965	14,768
Net income attributable to noncontrolling interest	167	318	634	318
Net income available to BankGuam Holding Company	5,155	5,245	12,331	14,450
Preferred stock dividend	(177)	(125)	(422)	(396)
Net income attributable to common stockholders	$ 4,978	$ 5,120	$ 11,909	$ 14,054
Earnings per common share (EPS):
Basic EPS	$ 0.51	$ 0.53	$ 1.22	$ 1.45
Earnings per common share (EPS):
Diluted EPS	0.51	0.53	1.22	1.45
Dividends declared per common share	$ 0.10	$ 0.10	$ 0.30	$ 0.30
Basic weighted average common shares	9,728	9,723	9,726	9,714
Diluted weighted average common shares	9,728	9,723	9,726	9,714

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 5,322	$ 5,563	$ 12,965	$ 14,768
Other comprehensive income (loss):
Unrealized holding gain (loss) on available-for-sale securities arising during the period, net of tax	(20,030)	(1,139)	(61,956)	(16,729)
Reclassification for (gain) realized on available-for- sale securities				(272)
Amortization of post-transfer unrealized holding loss on held-to-maturity securities during the period, net of tax	215	124	645	237
Total other comprehensive income (loss)	(19,815)	(1,015)	(61,311)	(16,764)
Total comprehensive income (loss)	$ (14,493)	$ 4,548	$ (48,346)	$ (1,996)

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Preferred Stock [Member]	Additional Paid-in Capital - Common [Member]	Additional Paid-in Capital - Preferred [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income/(Loss) [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]
Beginning Balances at Dec. 31, 2020	$ 177,056	$ 2,029	$ 980	$ 24,777	$ 8,803	$ 137,646	$ 3,111	$ (290)
Beginning Balance, Shares at Dec. 31, 2020		9,702,136
Comprehensive income:
Net income	3,295					3,295
Change in accumulated other comprehensive income:
Unrealized gain (loss) on available-for-sale securities, net	(20,735)						(20,735)
Common stock issued under Employee Stock Purchase Plan & Service Awards	97	$ 2		95
Common stock issued under Employee Stock Purchase Plan & Service Awards, Shares		11,436
Cash dividends on common stock	(970)					(970)
Cash dividends on preferred stock	(135)					(135)
Ending Balances at Mar. 31, 2021	158,608	$ 2,031	980	24,872	8,803	139,836	(17,624)	(290)
Ending Balance, Shares at Mar. 31, 2021		9,713,572
Beginning Balances at Dec. 31, 2020	177,056	$ 2,029	980	24,777	8,803	137,646	3,111	(290)
Beginning Balance, Shares at Dec. 31, 2020		9,702,136
Comprehensive income:
Net income	14,768
Change in accumulated other comprehensive income:
Unrealized gain (loss) on available-for-sale securities, net	(16,764)
Ending Balances at Sep. 30, 2021	178,839	$ 2,031	980	24,834	8,803	148,786	(13,653)	(290)	$ 7,348
Ending Balance, Shares at Sep. 30, 2021		9,730,575
Beginning Balances at Mar. 31, 2021	158,608	$ 2,031	980	24,872	8,803	139,836	(17,624)	(290)
Beginning Balance, Shares at Mar. 31, 2021		9,713,572
Comprehensive income:
Net income	5,910					5,910
Change in accumulated other comprehensive income:
Unrealized gain (loss) on available-for-sale securities, net	4,986						4,986
Common stock issued under Employee Stock Purchase Plan & Service Awards	91	$ 2		89
Common stock issued under Employee Stock Purchase Plan & Service Awards, Shares		9,243
Cash dividends on common stock	(972)					(972)
Cash dividends on preferred stock	(136)					(136)
Ending Balances at Jun. 30, 2021	168,487	$ 2,033	980	24,961	8,803	144,638	(12,638)	(290)
Ending Balance, Shares at Jun. 30, 2021		9,722,815
Comprehensive income:
Net income	5,563					5,245			318
Change in accumulated other comprehensive income:
Unrealized gain (loss) on available-for-sale securities, net	(1,015)						(1,015)
Common stock issued under Employee Stock Purchase Plan & Service Awards	86	$ 2		84
Common stock issued under Employee Stock Purchase Plan & Service Awards, Shares		7,760
Return of capital from stocks owned by subsidiary	(211)	$ (4)
Cash dividends on common stock	(1,370)					(972)			(398)
Cash dividends on preferred stock	(125)					(125)
Ending Balances at Sep. 30, 2021	178,839	$ 2,031	980	24,834	8,803	148,786	(13,653)	(290)	7,348
Ending Balance, Shares at Sep. 30, 2021		9,730,575
Beginning Balances at Dec. 31, 2021	180,749	$ 2,033	980	24,910	8,803	153,740	(16,721)	(290)	7,294
Beginning Balance, Shares at Dec. 31, 2021		9,721
Comprehensive income:
Net income	3,514					3,267			247
Change in accumulated other comprehensive income:
Unrealized gain (loss) on available-for-sale securities, net	(25,330)						(25,330)
Common stock issued under Employee Stock Purchase Plan & Service Awards	80	$ 1		79
Common stock issued under Employee Stock Purchase Plan & Service Awards, Shares		7
Return of capital from stocks owned by subsidiary	(8)								(8)
Cash dividends on common stock	(1,193)					(974)			(219)
Cash dividends on preferred stock	(122)					(122)
Ending Balances at Mar. 31, 2022	157,690	$ 2,034	980	24,989	8,803	155,911	(42,051)	(290)	7,314
Ending Balance, Shares at Mar. 31, 2022		9,728
Beginning Balances at Dec. 31, 2021	180,749	$ 2,033	980	24,910	8,803	153,740	(16,721)	(290)	7,294
Beginning Balance, Shares at Dec. 31, 2021		9,721
Comprehensive income:
Net income	12,965
Change in accumulated other comprehensive income:
Unrealized gain (loss) on available-for-sale securities, net	(61,311)
Ending Balances at Sep. 30, 2022	128,425	$ 2,034	980	24,989	8,803	162,725	(78,032)	(290)	7,216
Ending Balance, Shares at Sep. 30, 2022		9,728
Beginning Balances at Mar. 31, 2022	157,690	$ 2,034	980	24,989	8,803	155,911	(42,051)	(290)	7,314
Beginning Balance, Shares at Mar. 31, 2022		9,728
Comprehensive income:
Net income	4,129					3,909			220
Change in accumulated other comprehensive income:
Unrealized gain (loss) on available-for-sale securities, net	(16,166)						(16,166)
Return of capital from stocks owned by subsidiary	(52)								(52)
Cash dividends on common stock	(1,206)					(975)			(231)
Cash dividends on preferred stock	(123)					(123)
Ending Balances at Jun. 30, 2022	144,272	$ 2,034	980	24,989	8,803	158,722	(58,217)	(290)	7,251
Ending Balance, Shares at Jun. 30, 2022		9,728
Comprehensive income:
Net income	5,322					5,155			167
Change in accumulated other comprehensive income:
Unrealized gain (loss) on available-for-sale securities, net	(19,815)						(19,815)
Return of capital from stocks owned by subsidiary	3								3
Cash dividends on common stock	(1,180)					(975)			(205)
Cash dividends on preferred stock	(177)					(177)
Ending Balances at Sep. 30, 2022	$ 128,425	$ 2,034	$ 980	$ 24,989	$ 8,803	$ 162,725	$ (78,032)	$ (290)	$ 7,216
Ending Balance, Shares at Sep. 30, 2022		9,728

Condensed Consolidated Statem_6

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash flows from operating activities:
Net income	$ 12,965	$ 14,768
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Provision for loan losses	4,275	5,425
Depreciation	4,026	3,190
Amortization of debt issuance costs	51	30
Amortization of fees, discounts and premiums	47	260
Proceeds from sales of loans held for sale	6,371	22,361
Origination of loans held for sale	(6,371)	(22,361)
Decrease (increase) in mortgage servicing rights	(59)	(202)
Gross realized gains on sale of available-for-sale securities		(281)
Realized loss on sale of premises and equipment	75	9
Noncash lease expense	(4,468)	2,144
Increase in deferred tax asset	(18,213)	(3,737)
Net change in operating assets and liabilities:
Accrued interest receivable	661	1,848
Other assets	(15,650)	(6,982)
Accrued interest payable	(16)	(24)
Lease liability	4,603	(1,943)
Other liabilities	2,907	2,562
Net cash (used in) provided by operating activities	(8,796)	17,067
Cash flows from investing activities:
Acquisition of subsidiary, ASC Trust LLC		(5,340)
Purchases of available-for-sale securities	(133,262)	(289,615)
Purchases of held-to-maturity securities	(9,645)	(28,060)
Proceeds from sales of available-for-sale securities		46,993
Maturities, prepayments and calls of available-for-sale securities	71,380	48,668
Maturities, prepayments and calls of held-to-maturity securities	4,945	24,525
Loan originations and principal collections, net	(27,456)	57,916
Income from equity investment in unconsolidated subsidiary		(1,183)
Dividends received from unconsolidated subsidiary		1,154
Purchase of FHLB stock	(504)	(479)
Proceeds from sales of premises and equipment		11
Purchases of premises and equipment	(3,049)	(3,422)
Net cash used in investing activities	(97,591)	(148,832)
Cash flows from financing activities:
Net (decrease) increase in deposits	(182,082)	643,476
Cost from other borrowings		(12)
Proceeds from issuance of subordinated debt, net		19,576
Proceeds from issuance of common stock	80	274
Dividends paid	(4,001)	(3,708)
Net cash (used in) provided by financing activities	(186,003)	659,606
Net change in cash, cash equivalents and restricted cash	(292,390)	527,841
Cash, cash equivalents and restricted cash at beginning of period	557,553	287,778
Cash, cash equivalents and restricted cash at end of period	265,163	815,619
Cash paid during the period for:
Interest	95	299
Income taxes	2,496	5,144
Supplemental disclosure of noncash investing and financing activities:
Net change in unrealized loss on held-to-maturity securities, net of tax	645	237
Net change in unrealized gain on available-for-sale securities, net of tax	$ (61,957)	(17,001)
Transfer of securities from available-for-sale securities		130,471
Transfer of securities to held-to-maturity securities		$ (130,471)

Nature of Business

Nature of Business	9 Months Ended
	Sep. 30, 2022
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Nature of Business	Note 1 – Nature of Business Organization The accompanying condensed consolidated financial statements include the accounts of BankGuam Holding Company (“Company”) and its wholly-owned subsidiaries, Bank of Guam (“Bank”) and BankGuam Investment Services (“BGIS”). The Company is a Guam corporation organized on October 29, 2010, to act as the holding company of the Bank, a Guam banking corporation, a 17-branch bank serving the communities in Guam, the Commonwealth of the Northern Mariana Islands (“CNMI”), the Federated States of Micronesia (“FSM”), the Republic of the Marshall Islands (“RMI”), the Republic of Palau (“ROP”), and San Francisco, California. BGIS was incorporated in Guam in 2015 and initially capitalized during the first quarter of 2016. During July 2016, the Company executed an agreement to purchase up to 70% of ASC Trust LLC, formerly ASC Trust Corporation. On July 6, 2021, the Company completed its final purchase of 25% of the voting common stock of ASC Trust LLC under the agreement, as amended to date, bringing the Company’s ownership of ASC Trust LLC to 70%. See Note 4 under “Investment in AST Trust LLC” for additional details. Other than holding the shares of the Bank, BGIS and ASC Trust LLC, the Company conducts no significant activities, although it is authorized, with the prior approval of its principal regulator, the Board of Governors of the Federal Reserve System (the “Federal Reserve Board”), to engage in a variety of activities related to the business of banking. Currently, substantially all of the Company’s operations are conducted and substantially all of the assets are owned by the Bank, which accounts for substantially all of our consolidated revenues, expenses and operating income. The Bank provides a variety of financial services to individuals, businesses and governments through its branches. The Bank’s headquarters is located in Hagåtña, Guam. The Bank currently has seven branches in Guam, three in the CNMI, four in the FSM, one in the RMI, one in the ROP, and one in San Francisco, California. The Bank’s primary deposit products are demand deposits, savings and time certificate accounts, and its primary lending products are consumer, commercial and real estate loans. In 2021 the Bank permanently closed the Dededo, Harmon and Chalan Piao branches. For ease of reference we will sometimes refer to the Company and the Bank as “we”, “us” or “our”.

Summary of Significant Accounti

Summary of Significant Accounting Policies and Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2022
Accounting Policies [Abstract]
Summary of Significant Accounting Policies and Recent Accounting Pronouncements	Note 2 – Summary of Significant Accounting Policies and Recent Accounting Pronouncements The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and, therefore, do not include all footnotes that would be required for a full presentation of financial condition, results of operations, changes in cash flows and comprehensive income in accordance with generally accepted accounting principles in the United States (“GAAP”). However, these interim financial statements reflect all adjustments (consisting of normal recurring adjustments and accruals) which, in the opinion of our management, are necessary for a fair presentation of our financial condition, results of operations and cash flows for the interim periods presented. These unaudited condensed consolidated financial statements have been prepared on a basis consistent with prior periods, and should be read in conjunction with our audited consolidated financial statements as of and for the year ended December 31, 2021, and the notes thereto, included in our Annual Report on Form 10-K for the year ended December 31, 2021, as filed with the U.S. Securities and Exchange Commission (“SEC”) under the Exchange Act on March 28, 2022. Certain prior period amounts have been reclassified to conform to the current period presentation. Our condensed consolidated financial condition at September 30, 2022, and the condensed consolidated results of operations for the three and nine months ended September 30, 2022, are not necessarily indicative of what our financial condition will be at December 31, 2022, or of the results of our operations that may be expected for the full year ending December 31, 2022. Use of Estimates The preparation of condensed consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements, and the reported amounts of income and expenses during the periods presented. Actual results could differ from those estimates. Restricted Cash Interest-bearing deposits in banks that mature within one year are carried at cost. $150 thousand of these deposits are held by the Bank jointly under the names of Bank of Guam and the Guam Insurance Commissioner, and serve as a bond for the Bank of Guam Trust Department. COVID-19 The outbreak of a novel coronavirus (“COVID-19”) in 2020 and subsequent impact on public commerce and related business activities continues to impact the Company as well as a broad range of industries in which the Company’s customers operate and, in some instances, impaired their ability to fulfill their financial obligations to the Company. On March 3, 2020, the Federal Open Market Committee (FOMC) reduced the target range for federal funds by 50 basis points to 1.00% - 1.25%. This rate was further reduced to a target range of 0% - 0.25% on March 16, 2020. Improvements in economic conditions as well as accelerating inflations resulted in the FOMC increasing the target range by a total of 300bps; 25bps to 0.25% - 0.50% on March 16, 2022, 50bps to 0.75% - 1.00% on May 4, 2022, 75bps to 1.50% - 1.75% on June 15, 2022, 75bps to 2.25% - 2.50% on July 27, 2022, and 75bps to 3.00% - 3.25% on September 22, 2022. In the United States, the government enacted the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) on March 27, 2020. The CARES Act, among other things, created a $670 billion loan program (the “Paycheck Protection Program” or the “PPP”) for fully guaranteed loans (which may be forgiven) to small businesses for certain qualifying expenses. The PPP was modified and extended multiple times prior to its expiration on May 31, 2021. Currently one branch in Guam remains closed due to renovations, and will reopen upon completion. The Bank continues to provide a secure telecommuting program for those personnel who are able to perform their responsibilities remotely, the computer hardware and software needed to support those tasks, and established teleconferencing capabilities to reduce the number of people in attendance at all of its larger group meetings. The Company has not materially changed its accounting policies or procedures due to COVID-19. Russia/Ukraine Conflict The current Russia and Ukraine Recently Adopted Accounting Pronouncements In March 2020, the FASB issued ASU 2020-04, " Reference Rate Reform (Topic 848), Facilitation of the Effects of Reference Rate Reform on Financial Reporting December 2021 Recently Issued but Not Yet Adopted Accounting Pronouncements In June 2016, the FASB issued ASU 2016-13, “Financial Instruments – Credit Losses (Topic 326)” The Company was preparing to implement ASU 2016-13 when it was scheduled to become effective January 1, 2020, but the FASB announced on October 16, 2019, a delay of the effective date for smaller reporting companies until January 1, 2023. The Company will recognize a one-time cumulative effect adjustment to the allowance for loan losses as of the first reporting period in which the new standard is effective. • An economic forecast period of one year based on the relation of losses with key economic variables for each portfolio segment; • Segmentation of loans into pools that share common risk characteristics; and • Used the discounted cash flow (DCF) method to measure credit impairment on most of our loan portfolios and estimate lifetime credit losses using the conceptual components described above. The Company classifies its investment securities as available-for-sale or held-to-maturity. The Company’s investment security portfolio consists of U.S. government-sponsored agencies securities, which has an explicit or implicit guarantee from the U.S. government, are highly rated by major rating agencies, and have a long history of no credit losses. Accordingly, the Company does not anticipate to apply a loss assumption for its investment securities.

Earnings Per Common Share

Earnings Per Common Share	9 Months Ended
	Sep. 30, 2022
Earnings Per Share Pro Forma [Abstract]
Earnings Per Common Share	Note 3 – Earnings Per Common Share Basic earnings per common share represent income available to common stockholders divided by the weighted-average number of common shares outstanding during the period. Potential common shares that may be issued by the Company relate to shares subscribed but not yet issued in 2022 and 2021 under the Employee Stock Purchase Plan, and are reported as dilutive options. No shares were subscribed but not issued at September 30, 2022 and 2021. In April 2022, the Company suspended the Employee Stock Purchase Plan indefinitely in connection with the Company’s plans to implement a 1-for-500 Earnings per common share are computed based on reported net income, preferred stock dividends and the following common share data: Three Months Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Net income available to BankGuam Holding Company $ 5,155 $ 5,245 $ 12,331 $ 14,450 Less preferred stock dividends (177 ) (125 ) (422 ) (396 ) Net income attributable to common stockholders $ 4,978 $ 5,120 $ 11,909 $ 14,054 Weighted average number of common shares outstanding - used to calculate basic and diluted earnings per common share 9,728 9,723 9,726 9,714 Earnings per common share (EPS): Basic and diluted EPS $ 0.51 $ 0.53 $ 1.22 $ 1.45

Investment Securities

Investment Securities	9 Months Ended
	Sep. 30, 2022
Investments Debt And Equity Securities [Abstract]
Investment Securities	Note 4 – Investment Securities The amortized cost and fair value of investment securities, with gross unrealized gains and losses, is presented as follows: September 30, 2022 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Securities Available-for-Sale U.S. government agency and government sponsored enterprise (GSE) debt securities $ 114,972 $ - $ (22,153 ) $ 92,819 U.S. government agency pool securities 65,153 23 (655 ) 64,521 U.S. government agency or GSE residential mortgage-backed securities 405,199 - (63,304 ) 341,895 Total $ 585,324 $ 23 $ (86,112 ) $ 499,235 Securities Held-to-Maturity U.S. government agency and government sponsored enterprise (GSE) debt securities $ 277,028 $ - $ (70,663 ) $ 206,365 U.S. government agency pool securities 2,071 - (41 ) 2,030 U.S. government agency or GSE residential mortgage-backed securities 38,494 - (6,560 ) 31,934 Total $ 317,593 $ - $ (77,264 ) $ 240,329 December 31, 2021 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Securities Available-for-Sale U.S. government agency and government sponsored enterprise (GSE) debt securities $ 114,969 $ - $ (4,007 ) $ 110,962 U.S. government agency pool securities 21,106 2 (247 ) 20,861 U.S. government agency or GSE residential mortgage-backed securities 369,419 1,957 (3,833 ) 367,543 Total $ 505,494 $ 1,959 $ (8,087 ) $ 499,366 Securities Held-to-Maturity U.S. government agency and government sponsored enterprise (GSE) debt securities $ 276,188 $ - $ (1,621 ) $ 274,567 U.S. government agency pool securities 3,028 8 (45 ) 2,991 U.S. government agency or GSE residential mortgage-backed securities 33,078 105 (369 ) 32,814 Total $ 312,294 $ 113 $ (2,035 ) $ 310,372 At September 30, 2022 and December 31, 2021, investment securities with a carrying value of $660.1 million and $558.8 million, respectively, were pledged to secure various government deposits and to meet other public requirements. Proceeds and gross realized gains from the sales of available-for-sale investment securities for the nine months ended September 30, 2022 and 2021 are shown below. There were no sales of investment securities for the three months ended September 30, 2022 Nine Months Ended September 30, 2022 2021 Proceeds from sales $ - $ 46,993 Gross realized gains from sales $ - $ 272 Gross realized losses from sales $ - $ - The amortized cost and estimated fair value of investment securities by contractual maturity at September 30, 2022 and December 31, 2021 are shown below. Actual maturities may differ from contractual maturities because issuers may have the right to call or borrowers the right to prepay obligations with or without call or prepayment penalties. At September 30, 2022, obligations of U.S. government corporations and agencies with amortized costs totaling $902.9 million consisted of residential mortgage-backed securities totaling $443.7 million and Small Business Administration agency pool securities totaling $67.2 million whose contractual maturity, or principal repayment, will follow the repayment of the underlying small business loans or mortgages. For purposes of the following table, the entire outstanding balance of these mortgage-backed securities issued by U.S. government corporations and agencies and SBA pools is categorized based on final maturity date. At September 30, 2022, the Bank estimates the average remaining life of these mortgage-backed securities and SBA pools to be approximately 5.6 years September 30, 2022 Available-for-Sale Held-to-Maturity Amortized Cost Estimated Fair Value Amortized Cost Estimated Fair Value Due within one year $ - $ - $ - $ - Due after one but within five years 9,385 8,908 2,568 2,358 Due after five but within ten years 157,687 132,278 70,805 56,840 Due after ten years 418,252 358,049 244,220 181,131 Total $ 585,324 $ 499,235 $ 317,593 $ 240,329 December 31, 2021 Available-for-Sale Held-to-Maturity Amortized Cost Estimated Fair Value Amortized Cost Estimated Fair Value Due within one year $ 105 $ 105 $ - $ - Due after one but within five years 8,331 8,377 1,228 1,246 Due after five but within ten years 151,682 148,389 62,925 62,257 Due after ten years 345,376 342,495 248,141 246,869 Total $ 505,494 $ 499,366 $ 312,294 $ 310,372 Temporarily Impaired Securities The following table shows the gross unrealized losses and fair value of the Company’s investments with unrealized losses that are not deemed to be other-than-temporarily impaired, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at September 30, 2022 and December 31, 2021. September 30, 2022 Less Than Twelve Months More Than Twelve Months Total Unrealized Losses Estimated Fair Value Unrealized Losses Estimated Fair Value Unrealized Losses Estimated Fair Value Securities Available for Sale U.S. government agency and government sponsored enterprise (GSE) debt securities $ - $ - $ (22,153 ) $ 92,819 $ (22,153 ) $ 92,819 U.S. government agency pool securities (487 ) 54,955 (168 ) 4,559 (655 ) 59,514 U.S. government agency or GSE residential mortgage-backed securities (28,099 ) 174,861 (35,205 ) 167,034 (63,304 ) 341,895 Total $ (28,586 ) $ 229,816 $ (57,526 ) $ 264,412 $ (86,112 ) $ 494,228 Securities Held to Maturity US government agency and sponsored Agencies (GSE) debt securities $ (33,687 ) $ 79,190 $ (36,976 ) $ 127,175 $ (70,663 ) $ 206,365 U.S. government agency pool securities (3 ) 1,335 (38 ) 695 (41 ) 2,030 U.S. government agency or GSE residential mortgage-backed securities (942 ) 10,906 (5,618 ) 21,029 (6,560 ) 31,935 Total $ (34,632 ) $ 91,431 $ (42,632 ) $ 148,899 $ (77,264 ) $ 240,330 December 31, 2021 Less Than Twelve Months More Than Twelve Months Total Unrealized Losses Estimated Fair Value Unrealized Losses Estimated Fair Value Unrealized Losses Estimated Fair Value Securities Available for Sale U.S. government agency and government sponsored enterprise (GSE) debt securities $ (2,824 ) $ 82,145 $ (1,183 ) $ 28,817 $ (4,007 ) $ 110,962 U.S. government agency pool securities (71 ) 5,127 (176 ) 14,743 (247 ) 19,870 U.S. government agency or GSE residential mortgage-backed securities (3,833 ) 290,573 - - (3,833 ) 290,573 Total $ (6,728 ) $ 377,845 $ (1,359 ) $ 43,560 $ (8,087 ) $ 421,405 Securities Held to Maturity U.S. government agency and government sponsored enterprise (GSE) debt securities $ (1,395 ) $ 159,840 $ (226 ) $ 114,726 $ (1,621 ) $ 274,566 U.S. government agency pool securities (37 ) 1,507 (8 ) 403 (45 ) 1,910 U.S. government agency or GSE residential mortgage-backed securities (362 ) 28,498 (7 ) 529 (369 ) 29,027 Total $ (1,794 ) $ 189,845 $ (241 ) $ 115,658 $ (2,035 ) $ 305,503 The investment securities that were in an unrealized loss position as of September 30, 2022, which comprised a total of 238 securities, were not other-than-temporarily impaired. Specifically, the 238 securities are comprised of the following: 45 Small Business Administration Pool securities, 26 agency securities issued by Federal Home Loan Bank (“FHLB”), 34 mortgaged-backed securities and 19 agency securities issued by Federal Home Loan Mortgage Corporation (“FHLMC”), 75 mortgaged-backed securities and 1 agency security issued by Federal National Mortgage Association (“FNMA”), 20 mortgaged-backed securities issued by Government National Mortgage Association (“GNMA”) and 18 agency securities issued by Federal Farm Credit Banks (“FFCB”). Total gross unrealized losses were primarily attributable to changes in market interest rates, relative to when the investment securities were purchased, and not due to any change in the credit quality or rating of the investment securities which remains at AAA by Moodys . All of the Company’s investment securities are either backed by the full faith and credit of the U.S. government or carry an implied guarantee . The Company does not intend to sell the investment securities that were in an unrealized loss position and it is not likely that the Company will be required to sell the investment securities before recovery of their amortized cost, which may be at maturity. However, the Company may elect to sell certain investment securities with an unrealized loss position in its “available for sale” portfolio as needed to replenish its liquidity. Investment in ASC Trust LLC On July 6, 2021, with the approval of the Federal Reserve Bank of San Francisco, the Company used $6.2 million of the proceeds from the subordinated notes totaling $20 million that were issued on June 29, 2021 to acquire an additional 25% of the voting common stock of ASC Trust LLC at the third and final closing, pursuant to the Stock Purchase Agreement (the “Agreement”) dated May 27, 2016, between the Company and David J. John, as amended to date. This transaction brought the Company’s interest in ASC Trust LLC to 70%. The Company evaluated its ownership in ASC Trust LLC after the last transaction in accordance to ASC 810 – Consolidation, and determined that the Company has control over ASC Trust LLC, requiring consolidation. The Company’s Chief Executive Officer serves on the Board of Directors of ASC Trust LLC. Another of the Company’s Board members also serves as a non-minority voting member of an entity that owns 5% of the common stock of ASC Trust LLC. The Agreement contains customary warranties, representations and indemnification provisions.

Loans Held for Sale, Loans and

Loans Held for Sale, Loans and Allowance for Loan Losses	9 Months Ended
	Sep. 30, 2022
Receivables [Abstract]
Loans Held for Sale, Loans and Allowance for Loan Losses	Note 5 – Loans Held for Sale, Loans and Allowance for Loan Losses Loans Held for Sale In its normal course of business, the Bank originates mortgage loans held for sale to the FHLMC. The Bank has elected to measure its residential mortgage loans held for sale at lower of cost or market. Origination fees and costs are recognized in earnings at the time of origination. Loans are sold to FHLMC at par. During the nine months ended September 30, 2022, the Bank originated and sold $6.4 million in FHLMC mortgage loans. During the nine months endedSeptember 30, 2021, the Bank originated and sold $22.4 million in FHLMC loans. Mortgage loans serviced for others are not included in the accompanying condensed consolidated statements of financial condition. The unpaid principal balances of mortgage loans serviced for others were $172.3 million at September 30, 2022, and $181.1 million at December 31, 2021. The decrease of $8.8 million (5.09%) during the nine months ended September 30, 2022, was due to principal paydowns and payoffs during the period, which offset new loans. We retain mortgage servicing rights on mortgage loans that we sell. Such rights represent the net positive cash flows generated from the servicing of such mortgage loans and we recognize such rights as assets on our statements of financial condition based on their estimated fair values. We receive servicing fees, less any subservicing costs, on the unpaid principal balances of such mortgage loans. Those fees are collected from the monthly payments made by the mortgagors or from the proceeds of the sale or foreclosure and liquidation of the underlying real property collateralizing the loans. At September 30, 2022 and December 31, 2021, mortgage servicing rights totaled $1.6 million each, respectively, and are included in other assets in the accompanying condensed consolidated statements of financial condition. The Bank accounts for mortgage servicing rights at fair value with changes in fair value recorded as a part of service fees and charges in the condensed consolidated statements of income. Loans Outstanding loan balances are presented net of unearned income, deferred loan fees, and unamortized discount and premium totaling $2.9 million at September 30, 2022, and $3.2 million at December 31, 2021. As of September 30, 2022 and December 31, 2021, our 10 341.9 In October 2022, the Bank entered into three agreements to purchase a loan portfolio and mortgage servicing rights from another financial institution in Guam. The portfolio consists of commercial loans and consumer mortgages that will be purchased in three phases and will be fully executed in the first quarter of 2023. The first phase was completed in October 2022. The loan portfolio consisted of the following at: September 30, 2022 December 31, 2021 Amount Percent Amount Percent Commercial Commercial & industrial $ 247,011 18.4 % $ 295,835 22.4 % Commercial mortgage 772,433 57.4 % 699,269 52.9 % Commercial construction 8,443 0.6 % 23,588 1.8 % Commercial agriculture 562 0.0 % 592 0.0 % Total commercial 1,028,449 76.4 % 1,019,284 77.1 % Consumer Residential mortgage 145,380 10.8 % 135,377 10.2 % Home equity 2,546 0.2 % 2,232 0.2 % Automobile 18,189 1.4 % 18,220 1.4 % Other consumer loans 1 151,343 11.2 % 146,208 11.1 % Total consumer 317,458 23.6 % 302,037 22.9 % Gross loans 1,345,907 100.0 % 1,321,321 100.0 % Deferred loan (fees) costs, net (2,881 ) (3,223 ) Allowance for loan losses (36,137 ) (34,408 ) Loans, net $ 1,306,889 $ 1,283,690 1 Comprised of other revolving credit, installment loans, and overdrafts. Paycheck Protection Program With the passage of the Paycheck Protection Program, or PPP, administered by the Small Business Administration, the Bank actively participated in assisting its customers with applications for resources through the program. PPP loans have either a two-year five-year 1% On June 5, 2020, the Paycheck Protection Program Flexibility Act of 2020 (the “Flexibility Act”) was signed into law which changed key provisions of the PPP, including provisions relating to the maturity of PPP loans, the deferral of PPP loan payments, and the forgiveness of PPP loans. Under the Flexibility Act, as clarified by the SBA in an October 7, 2020 update, the maturity date for PPP loans funded before June 5, 2020 remained at two years from funding while the maturity date for PPP loans funded after June 5, 2020 was five years from funding. In addition, the Flexibility Act increased the period during which PPP loan proceeds are to be used for purposes that would qualify the loan for forgiveness (the “covered period”) from 8 weeks to 24 weeks, at the borrower’s election, for PPP loans made prior to June 5, 2020, and set the covered period for loans made after June 5, 2020 at 24 weeks from funding. Under the Flexibility Act, PPP borrowers are not required to make any payments of principal or interest before the date on which SBA remits the loan forgiveness amount to the Company (or notifies the Company that no loan forgiveness is allowed) and, although PPP borrowers may submit an application for loan forgiveness at any time prior to the maturity date, if PPP borrowers do not submit a loan forgiveness application within 10 months after the end of their covered period, such borrowers will be required to begin paying principal and interest after that period. For loans originated under the SBA's PPP loan program, interest and principal payment on these loans were originally deferred for six months following the funding date, during which time interest would continue to accrue. The Flexibility Act extended the deferral period for borrower payments of principal, interest, and fees on all PPP loans to the date that the SBA remits the borrower’s loan forgiveness amount to the lender (or, if the borrower does not apply for loan forgiveness, ten months after the end of the borrower’s loan forgiveness covered period). The extension of the deferral period under the Flexibility Act automatically applied to all PPP loans. Allowance for Loan Losses The allowance for loan losses is evaluated on a quarterly basis by Bank management, and is based upon management’s periodic review of the collectability of loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral, and prevailing economic conditions. This evaluation is inherently subjective, as it requires estimates that are susceptible to significant revision as more information becomes available or conditions change. The allowance consists of allocated and general components. The allocated component relates to loans that are classified as impaired. ASC 310-10 defines an impaired loan as one for which there is uncertainty concerning collection of all principal and interest per the original contractual terms of the loan. For those loans that are classified as impaired, an allowance is established when the discounted cash flow (or the collateral value or the observable market price) of the impaired loan is lower than the carrying value of the loan. The general component covers unimpaired loans, and is estimated using a loss migration analysis based on historical charge-off experience and expected loss, given the default probability derived from the Bank’s internal risk rating process. The loss migration analysis tracks twelve rolling quarters of loan loss history and industry loss factors to determine historical losses by classification category for each loan type, except certain consumer loans. These calculated loss factors are then applied to outstanding loan balances for all non-impaired loans. Additionally, the allowance consist of internally developed qualitative factors based on interagency guidance which are used to supplement the risks that are not captured by the historical loss migration analysis. These qualitative factors that are determined utilizing external economic factors and internal assessments is applied to each homogeneous loan pool. We also conduct individual loan review analyses, as part of the allowance for loan loss allocation process, applying specific monitoring policies and procedures in analyzing the existing loan portfolio. Beginning in 2020, management increased the loss attributes in a number of the qualitative factors to more appropriately capture the risks stemming from economic deterioration from COVID-19. The Company continually evaluates these factors and makes adjustments each quarter. During the three and nine months ended September 30, 2022, management adjusted the economic risk factors to incorporate the current economic implications, which include fluctuations in tourism, unemployment due to the COVID-19 pandemic and inflationary concerns. Set forth below is a summary of the Bank’s activity in the allowance for loan losses during the three and nine months ended September 30, 2022, and 2021, and the year ended December 31, 2021: Three Months Ended September 30, 2022 Three Months Ended September 30, 2021 Nine Months Ended September 30, 2022 Nine Months Ended September 30, 2021 Year Ended December 31, 2021 Balance, beginning of period $ 35,732 $ 36,093 $ 34,408 $ 34,805 $ 34,805 Charged off loans (1,559 ) (968 ) (4,206 ) (3,723 ) (4,950 ) Recoveries on loans previously charged off 539 447 1,660 1,540 2,403 Provision for loan losses 1,425 2,475 4,275 5,425 2,150 Balance, end of period $ 36,137 $ 38,047 $ 36,137 $ 38,047 $ 34,408 Set forth below is information regarding loan balances and the related allowance for loan losses, by portfolio type, for the three and nine months ended September 30, 2022 and 2021, and the year ended December 31, 2021, respectively. Commercial Residential Mortgages Consumer Total (Dollars in thousands) Nine Months Ended September 30, 2022 Allowance for loan losses: Balance at beginning of period $ 22,860 $ 2,304 $ 9,244 $ 34,408 Charge-offs (716 ) - (3,490 ) (4,206 ) Recoveries 158 2 1,500 1,660 Provision 2,323 (26 ) 1,978 4,275 Ending balance $ 24,625 $ 2,280 $ 9,232 $ 36,137 Allowance balance at end of period related to: Loans individually evaluated for impairment $ 3,510 $ 34 $ 920 $ 4,464 Loans collectively evaluated for impairment 21,115 2,246 8,312 31,673 Ending balance $ 24,625 $ 2,280 $ 9,232 $ 36,137 Loan balances at end of period: Loans individually evaluated for impairment $ 11,854 $ 38,577 $ 1,122 $ 51,553 Loans collectively evaluated for impairment 1,016,595 109,349 168,410 1,294,354 Ending balance $ 1,028,449 $ 147,926 $ 169,532 $ 1,345,907 Nine Months Ended September 30, 2021 Allowance for loan losses: Balance at beginning of period $ 21,213 $ 1,990 $ 11,602 $ 34,805 Charge-offs (77 ) (98 ) (3,548 ) (3,723 ) Recoveries 173 - 1,367 1,540 Provision 1,992 453 2,980 5,425 Ending balance $ 23,301 $ 2,345 $ 12,401 $ 38,047 Allowance balance at end of period related to: Loans individually evaluated for impairment $ 3,504 $ 50 $ 1,048 $ 4,602 Loans collectively evaluated for impairment 19,797 2,295 11,353 33,445 Ending balance $ 23,301 $ 2,345 $ 12,401 $ 38,047 Loan balances at end of period: Loans individually evaluated for impairment $ 61,043 $ 2,922 $ 1,207 $ 65,172 Loans collectively evaluated for impairment 1,000,889 132,150 172,700 1,305,739 Ending balance $ 1,061,932 $ 135,072 $ 173,907 $ 1,370,911 Year Ended December 31, 2021 Allowance for loan losses: Balance at beginning of year $ 21,213 $ 1,990 $ 11,602 $ 34,805 Charge-offs (115 ) (99 ) (4,736 ) (4,950 ) Recoveries 578 1 1,824 2,403 Provision 1,184 412 554 2,150 Ending balance $ 22,860 $ 2,304 $ 9,244 $ 34,408 Allowance balance at end of year related to: Loans individually evaluated for impairment $ 3,510 $ 50 $ 941 $ 4,501 Loans collectively evaluated for impairment 19,350 2,254 8,303 29,907 Ending balance $ 22,860 $ 2,304 $ 9,244 $ 34,408 Loan balances at end of year: Loans individually evaluated for impairment $ 48,459 $ 2,265 $ 1,059 $ 51,783 Loans collectively evaluated for impairment 970,825 135,343 163,370 1,269,538 Ending balance $ 1,019,284 $ 137,608 $ 164,429 $ 1,321,321 Credit Quality The following table provides a summary of the delinquency status of the Bank’s loans by portfolio type: 30-59 Days Past Due 60-89 Days Past Due 90 Days and Greater Non- Accrual 90 Days and Greater Still Accruing Total Past Due Current Total Loans Outstanding September 30, 2022 Commercial Commercial & industrial $ 2,610 $ 12,176 $ 6,549 $ - $ 21,335 $ 225,676 $ 247,011 Commercial mortgage 5,756 188 4,293 150 10,387 762,046 772,433 Commercial construction - - - - - 8,443 8,443 Commercial agriculture - - - - - 562 562 Total commercial 8,366 12,364 10,842 150 31,722 996,727 1,028,449 Consumer Residential mortgage 2,328 1,246 443 4 4,021 141,359 145,380 Home equity - - - - - 2,546 2,546 Automobile 198 92 - 73 363 17,826 18,189 Other consumer 1 1,421 964 106 828 3,319 148,024 151,343 Total consumer 3,947 2,302 549 905 7,703 309,755 317,458 Total $ 12,313 $ 14,666 $ 11,391 $ 1,055 $ 39,425 $ 1,306,482 $ 1,345,907 December 31, 2021 Commercial Commercial & industrial $ 56 $ 202 $ 7,338 $ 106 $ 7,702 $ 288,133 $ 295,835 Commercial mortgage 2,540 217 4,622 - 7,379 691,890 699,269 Commercial construction - - - - - 23,588 23,588 Commercial agriculture - - - - - 592 592 Total commercial 2,596 419 11,960 106 15,081 1,004,203 1,019,284 Consumer Residential mortgage 2,194 1,236 267 77 3,774 131,603 135,377 Home equity - - - - - 2,232 2,232 Automobile 407 162 - 41 610 17,610 18,220 Other consumer 1 2,037 1,024 69 866 3,996 142,212 146,208 Total consumer 4,638 2,422 336 984 8,380 293,657 302,037 Total $ 7,234 $ 2,841 $ 12,296 $ 1,090 $ 23,461 $ 1,297,860 $ 1,321,321 1 Comprised of other revolving credit, installment loans, and overdrafts. Generally, the accrual of interest on a loan is discontinued when principal or interest payments become more than 90 days past due, unless management believes the loan is adequately collateralized and is in the process of collection, with the exception of automobile and other consumer loans which, rather than being placed on non-accrual status, are charged off once they become 120 days delinquent. When a loan is placed on non-accrual status, previously accrued but unpaid interest is reversed against current income. Subsequent collections of cash are applied as principal reductions when received, except when the ultimate collectability of principal is probable, in which case interest payments are credited to income. Non-accrual loans may be restored to accrual status when in receipt of six consecutive payments, and principal and interest become current and full repayment is expected. The following table provides information as of September 30, 2022 and December 31, 2021, with respect to loans on non-accrual status, by portfolio type: September 30, 2022 December 31, 2021 (Dollars in thousands) Non-accrual loans: Commercial Commercial & industrial $ 7,101 $ 7,610 Commercial mortgage 5,956 8,148 Total commercial 13,057 15,758 Consumer Residential mortgage $ 2,814 $ 1,660 Other consumer 1 158 152 Total consumer 2,972 1,812 Total non-accrual loans $ 16,029 $ 17,570 1 Comprised of other revolving credit, installment loans, and overdrafts. Credit Quality Indicators The Bank uses several credit quality indicators to manage credit risk, including an internal credit risk rating system that categorizes loans into pass, special mention, substandard, formula classified, doubtful or loss categories. Credit risk ratings are applied individually to those classes of loans that have significant or unique credit characteristics and that benefit from a case-by-case evaluation. These are typically loans to businesses or individuals in the classes which comprise the commercial portfolio segment. Groups of loans that are underwritten and structured using standardized criteria and characteristics, such as statistical models (e.g., credit scoring or payment performance), are typically risk-rated and monitored collectively. These are typically loans to individuals in the classes which comprise the consumer portfolio segment. The following are the definitions of the Bank’s credit quality indicators: Pass (A): Exceptional: Essentially risk-free credit. These are loans of the highest quality that pose virtually no risk of loss to the Bank. This includes loans fully collateralized by means of a savings account(s) and time certificate(s) of deposit, and by at least 110% of the loan amount. Borrowers should have strong financial statements, good liquidity and excellent credit. Pass (B): Standard: Multiple, strong sources of repayment. These are loans to borrowers with a demonstrated history of financial and managerial performance. The risk of loss is considered to be low. Loans are well-structured, with clearly identified primary and readily available secondary sources of repayment. These loans may be secured by an equal amount of funds in a savings account or time certificate of deposit. These loans may also be secured by marketable collateral whose value can be reasonably determined through outside appraisals. The borrower characteristically has well supported cash flows and low leverage. Pass (C): Acceptable: Good primary and secondary sources of repayment. These are loans to borrowers of average financial condition, stability and management expertise. The borrower should be a well-established individual or company with adequate financial resources to withstand short-term fluctuations in the marketplace. The borrower’s financial ratios and trends are favorable. The loans may be unsecured or supported by non-real estate collateral for which the value is more difficult to determine, represent a reasonable credit risk and require an average amount of account officer attention. The borrower’s ability to repay unsecured credit is to be of unquestionable strength. Pass (D): Monitor: Sufficient primary sources of repayment and an acceptable secondary source of repayment. Acceptable business or individual credit, but the borrower’s operations, cash flows or financial conditions carry average levels of risk. These loans are considered to be collectable in full, but may require a greater-than-average amount of loan officer monitoring. Borrowers are capable of absorbing normal setbacks without failing to meet the terms of the loan agreement. Special Mention: A Special Mention asset has potential weaknesses that deserve a heightened degree of monitoring. These potential weaknesses may result in a deterioration of the repayment prospects for the asset or in the institution’s credit position at some future date. Special Mention assets are not adversely classified and do not expose an institution to sufficient risk to warrant adverse classification. The Special Mention classification should neither be a compromise between a pass grade and substandard, nor should it be a “catch all” grade to identify any loan that has a policy exception. Substandard: A Substandard asset is inadequately protected by the current sound worth and payment capacity of the obligor or the collateral pledged. Assets so classified must have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. Assets classified as substandard are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected. Formula Classified: Formula Classified loans are all loans and credit cards delinquent 90 days and over which have yet to be formally classified Special Mention, Substandard or Doubtful by the Bank’s Loan Committee. In most instances, the monthly formula total is comprised primarily of residential real estate loans, consumer loans, credit cards and commercial loans under $250 thousand. However, commercial loans are typically formally classified by the Loan Committee no later than their 90-day delinquency, and those do not become part of the formula classification. Real estate loans 90-days delinquent that are in the foreclosure process, which is typically completed within another 60 days, are not formally classified during this period. Doubtful: A loan with weaknesses well enough defined that eventual repayment in full, on the basis of currently existing facts, conditions and values, is highly questionable, even though certain factors may be present which could improve the status of the loan. The probability of some loss is extremely high, but because of certain known factors that may work to the advantage of strengthening of the assets (i.e. capital injection, perfecting liens on additional collateral, refinancing plans, etc.), its classification as an estimated loss is deferred until its more exact status can be determined. Loss: Loans classified as “Loss” are considered uncollectible, and are either unsecured or are supported by collateral that is of little to no value. As such, their continuance as recorded assets is not warranted. While this classification does not mandate that a loan has no ultimate recovery value, losses should be taken in the period during which these loans are deemed to be uncollectible. Loans identified as loss are immediately approved for charge-off. The Bank may refer loans to outside collection agencies, attorneys, or its internal collection division to continue collection efforts. Any subsequent recoveries are credited to the Allowance for Loan Losses. The Bank classifies its loan portfolios using internal credit quality ratings, as discussed above under Allowance for Loan Losses . The following table provides a summary of loans by portfolio type and the Bank’s internal credit quality ratings as of September 30, 2022 , and December 31, 2021 : September 30, 2022 December 31, 2021 (Dollars in thousands) Pass: Commercial & industrial $ 213,369 $ 266,300 Commercial mortgage 717,216 642,835 Commercial construction 8,443 23,588 Commercial agriculture 562 592 Residential mortgage 142,103 133,176 Home equity 2,546 2,232 Automobile 18,116 18,179 Other consumer 150,357 145,190 Total pass loans 1,252,712 1,232,092 Special Mention: Commercial & industrial 1,081 9,760 Commercial mortgage 40,811 11,051 Total special mention loans 41,892 20,811 Substandard: Commercial & industrial 26,261 12,645 Commercial mortgage 13,764 44,661 Residential mortgage 2,515 613 Other consumer - 2 Total substandard loans 42,540 57,921 Formula Classified: Residential mortgage 762 1,588 Automobile 73 41 Other consumer 986 1,016 Total formula classified loans 1,821 2,645 Doubtful: Commercial & industrial 6,300 7,130 Commercial mortgage 642 722 Total doubtful loans 6,942 7,852 Total outstanding loans, gross $ 1,345,907 $ 1,321,321 Impaired Loans A loan is considered impaired when, based on current information and events, it is probable that the Bank will be unable to collect the scheduled payments of principal and interest when due according to the original contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed. Impaired loans include loans that are in non-accrual status and other loans that have been modified in Troubled Debt Restructurings (TDRs), where economic concessions have been granted to borrowers experiencing financial difficulties. These concessions typically result from the Bank’s loss mitigation actions, and could include reductions in the interest rate, payment extensions, forbearance, or other actions taken with the intention of maximizing collections. Impairment is measured on a loan-by-loan basis for commercial and real estate loans by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral (if the loan is collateral-dependent). Large groups of smaller-balance homogeneous loans, such as consumer loans, are collectively evaluated for impairment. Impairment reserves for these groups of consumer loans are determined using historical loss given default rates for similar loans. The following table sets forth information regarding non-accrual loans and restructured loans at September 30, 2022 and December 31, 2021: September 30, 2022 December 31, 2021 (Dollars in thousands) Impaired loans: Restructured loans: Non-accruing restructured loans $ 4,328 $ 6,083 Accruing restructured loans 33,584 32,595 Total restructured loans 37,912 38,678 Other impaired loans 13,641 13,105 Total impaired loans $ 51,553 $ 51,783 Impaired loans less than 90 days delinquent and included in total impaired loans $ 39,107 $ 38,398 The table below contains additional information with respect to impaired loans, by portfolio type, at September 30, 2022 and December 31, 2021: Recorded Investment Unpaid Principal Balance Average Recorded Investment Interest Income Recognized (Dollars in thousands) September 30, 2022, with no related allowance recorded: Commercial & industrial $ 11,820 $ 11,943 $ 11,529 $ 34 Commercial mortgage 35,074 35,641 35,656 149 Residential mortgage 2,515 2,515 1,601 10 Other consumer - - - - Total impaired loans with no related allowance $ 49,409 $ 50,099 $ 48,786 $ 193 September 30, 2022, with a related allowance recorded: Commercial & industrial $ 96 $ 96 $ 230 $ - Commercial mortgage 168 183 151 - Residential mortgage 821 831 964 - Automobile 73 73 72 1 Other consumer 986 986 1,053 11 Total impaired loans with a related allowance $ 2,144 $ 2,169 $ 2,470 $ 12 December 31, 2021, with no related allowance recorded: Commercial & industrial $ 11,150 $ 11,150 $ 75,812 $ 56 Commercial mortgage 36,935 37,182 38,456 149 Residential mortgage 612 612 221 - Other consumer 2 2 4 - Total impaired loans with no related allowance $ 48,699 $ 48,946 $ 114,493 $ 205 December 31, 2021, with a related allowance recorded: Commercial & industrial $ 262 $ 262 $ 116 $ 2 Commercial mortgage 112 127 75 - Residential mortgage 1,653 1,663 1,921 1 Automobile 41 41 29 1 Other consumer 1,016 1,016 1,253 8 Total impaired loans with a related allowance $ 3,084 $ 3,109 $ 3,394 $ 12 Troubled Debt Restructurings In accordance with FASB’s Accounting Standards Update No. 2011-02, “A Creditor’s Determination of Whether a Restructuring is a Troubled Debt Restructuring” Additional information regarding performing and nonperforming TDRs at September 30, 2022 and December 31, 2021 is set forth in the following table: Number of Pre- Modification Outstanding Recorded Principal Post- Modification Outstanding Recorded Outstanding Balance Loans Investment Modifications Investment September 30, 2022 December 31, 2021 Performing Residential mortgage - $ - $ - $ - $ - $ - Commercial & industrial 8 5,734 - 5,734 4,685 3,696 Commercial mortgage 1 28,899 - 28,899 28,899 28,899 Consumer - - - - - - Total performing 9 34,633 - 34,633 33,584 32,595 Nonperforming Commercial & industrial 1 176 - 176 67 142 Commercial mortgage 6 5,954 - 5,954 4,261 5,941 Consumer - - - - - - Total nonperforming 7 6,130 - 6,130 4,328 6,083 Total Troubled Debt Restructurings 16 $ 40,763 $ - $ 40,763 $ 37,912 $ 38,678 Principal modification includes principal forgiveness at the time of modification, contingent principal forgiveness granted over the life of the loan based on borrower performance. In an effort to constructively work with borrowers affected by the COVID-19 pandemic, the Bank initiated a temporary program in March 2020 to allow for 90-day deferrals for residential mortgage and commercial loans upon request from the borrower, and a 90-day deferral for all consumer and automobile loans. The Bank did not identify these loans that were deferred and were over 30 days delinquent as TDRs. The Bank identified a specific reserve for consumer loans totaling $3.0 million at September 30, 2022. The Bank also increased its environmental factors for the reserve to account for the effects of the COVID-19 pandemic. The Bank continues to process commercial and consumer deferral requests on a case-by-case basis. There was one default on troubled debt restructurings following the modification during the nine months ended September 30, 2022 and 2021. The Bank has one significant borrowing relationship in bankruptcy totaling $6.3 million at September 30, 2022. The Bank has calculated a specific reserve within the allowance for one of the borrowing relationships in bankruptcy in the amount of $3.5 million. In March 2022, a court ruling increased the availability of assets for one of the borrowing relationships in bankruptcy to satisfy its outstanding liabilities. The Bank believes it has sufficient collateral coverage to protect its current exposure in these matters, however due to the complexities of the bankruptcy cases and uncertainties surrounding ongoing negotiations, the ultimate outcomes may result in losses.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2022
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 6 – Commitments and Contingencies The Bank is involved in certain legal actions and claims that arise in the ordinary course of business. Management believes that, as a result of its legal defenses and insurance arrangements, none of these matters is expected to have a material adverse effect on the Bank’s, BGIS’s or the Company’s financial condition, results of operations or cash flows.

Regulatory Capital Requirements

Regulatory Capital Requirements	9 Months Ended
	Sep. 30, 2022
Text Block [Abstract]
Regulatory Capital Requirements	Note 7 – Regulatory Capital Requirements The Bank is subject to various regulatory capital requirements administered by the United States federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Bank’s, BGIS’s and the Company’s condensed consolidated financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Bank must meet specific capital guidelines that involve quantitative measures of their assets, liabilities and certain off-balance-sheet items, as calculated under regulatory accounting practices. Quantitative measures established by regulation to ensure capital adequacy require the Bank to maintain minimum amounts and ratios (set forth in the following table) of Total and Tier 1 capital (as defined in the regulations) to risk weighted assets (as defined) and of Tier 1 capital (as defined) to average assets (as defined). As of September 30, 2022 and December 31, 2021, the Bank met all capital adequacy requirements to which it is subject. As of September 30, 2022, the Bank’s capital ratios each exceeded the Federal Deposit Insurance Corporation’s well capitalized standards under the regulatory framework for prompt corrective action. To be categorized as well capitalized, an institution must maintain minimum Total risk-based, Tier 1 risk-based and Tier 1 leverage ratios as set forth in the following table. There are no conditions or events since the Bank’s last regulatory examination that management believes have changed the Bank’s category. The Company’s actual capital amounts and ratios as of September 30, 2022 and December 31, 2021 are presented in the table below. Actual For Capital Adequacy Purposes To Be Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio At September 30, 2022: Total Capital (to Risk Weighted Assets) $ 232,755 15.057 % $ 123,664 8.000 % $ 154,580 10.000 % Tier 1 Capital (to Risk Weighted Assets) $ 178,884 11.572 % $ 92,748 6.000 % $ 123,664 8.000 % Tier 1 Capital (to Average Assets) $ 178,884 6.668 % $ 107,301 4.000 % $ 134,127 5.000 % Common Equity Tier 1 Capital (to Risk Weighted Assets) $ 169,102 10.939 % $ 69,561 4.500 % $ 100,477 6.500 % At December 31, 2021: Total Capital (to Risk Weighted Assets) $ 222,493 15.161 % $ 117,403 8.000 % $ 146,753 10.000 % Tier 1 Capital (to Risk Weighted Assets) $ 168,623 11.490 % $ 88,052 6.000 % $ 117,403 8.000 % Tier 1 Capital (to Average Assets) $ 168,623 5.792 % $ 116,461 4.000 % $ 145,577 5.000 % Common Equity Tier 1 Capital (to Risk Weighted Assets) $ 158,840 10.824 % $ 66,039 4.500 % $ 95,390 6.500 %

Off-Balance-Sheet Activities

Off-Balance-Sheet Activities	9 Months Ended
	Sep. 30, 2022
Fair Value Disclosures [Abstract]
Off Balance Sheet Activities	Note 8 – Off-Balance-Sheet Activities The Bank is a party to credit-related financial instruments with off-balance-sheet risk to meet the financing needs of its customers in the normal course of business. These financial instruments include commitments to extend credit, standby letters of credit, and commercial letters of credit. Such commitments involve, to varying degrees, elements of credit and interest rate risk in addition to the amount reflected in the condensed consolidated financial statements. The Bank’s exposure to credit loss, in the event of nonperformance by the other parties to financial instruments for loan commitments and letters of credit, is represented by the contractual amount of these instruments. The Bank follows the same credit policies in making commitments and conditional obligations as it does for on-balance-sheet instruments. A summary of financial instruments with off-balance-sheet risk at September 30, 2022 and December 31, 2021 is as follows: September 30, 2022 December 31, 2021 Commitments to extend credit $ 167,117 $ 162,569 Letters of credit: Standby letters of credit $ 50,263 $ 43,239 Commercial letters of credit 2,034 2,366 Total $ 52,297 $ 45,605 Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. The commitments for some lines of credit may expire without being drawn upon. Therefore, the total commitment amounts do not necessarily represent future cash requirements. The Bank evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if it is deemed necessary by the Bank upon extension of credit, is based on management’s credit evaluation of the customer. Commercial and standby letters of credit are conditional commitments issued by the Bank to guarantee the performance of a customer to a third party or the shipment of merchandise from a third party. These letters of credit are primarily issued to support public and private borrowing arrangements. The majority of all letters of credit issued have expiration dates within one year. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers, and similar credit underwriting standards are applied. The Bank generally holds collateral supporting those commitments. The Bank considers its standby and other letters of credit to be payment guarantees. At September 30, 2022, the maximum undiscounted future payments that the Bank could be required to make for all outstanding letters of credit were $52.3 million. All of these arrangements mature within one year. The Bank has recourse to recover from the customer any amounts paid under these guarantees. Most of the guarantees are fully collateralized; however, several are unsecured. The Bank had recorded $53 thousand in reserve liabilities associated with these guarantees at September 30, 2022.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2022
Income Tax Disclosure [Abstract]
Income Taxes	Note 9 – Income Taxes We record an amount equal to the tax credits, tax loss carry-forwards and tax deductions (“tax benefits”) that we believe will be available to offset or reduce the amounts of income taxes in future periods as a deferred tax asset on our condensed consolidated statements of financial condition. Under applicable federal and state income tax laws and regulations in the United States, such tax benefits will expire if not used within specified periods of time. Accordingly, the ability to fully use the deferred tax asset depends on the amount of taxable income that we generate during those time periods. At least once each year, or more frequently if warranted, we make an estimates of future taxable income that we believe we are likely to generate during those future periods. If we conclude, on the basis of those estimates and the amount of the tax benefits available to us, that it is more likely than not that we will be able to fully utilize those tax benefits prior to their expiration, we recognize the deferred tax asset in full on our balance sheet. On the other hand, if we conclude on the basis of those estimates and the amount of the tax benefits available to us that it has become more likely than not that we will be unable to utilize those tax benefits in full prior to their expiration, then we would establish a (or increase any existing) valuation allowance to reduce the deferred tax asset on our balance sheet to the amount which we believe we are more likely than not to be able to utilize. Such a reduction is implemented by recognizing a non-cash charge that would have the effect of increasing the provision, or reducing any credit, for income taxes that we would otherwise have recorded in our condensed consolidated statements of income. The determination of whether and the extent to which we will be able to utilize our deferred tax asset involves significant management judgments and assumptions that are subject to period-to-period changes as a result of changes in tax laws, changes in the market, or economic conditions that could affect our operating results or variances between our actual operating results and our projected operating results, as well as other factors. There was no valuation allowance at September 30, 2022 and December 31, 2021, respectively, because, in management’s opinion, it is more likely than not that the total deferred tax asset of $32.3 million and $14.0 million, respectively, will be realized. The difference between the effective income tax expense and the income tax expense computed at the Guam statutory rate of 21% was due to nontaxable interest income earned on loans to the Government of Guam. In addition to filing a federal income tax return in Guam, the Bank files income tax returns in the CNMI and the State of California. The Bank is no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by tax authorities for years before 2012.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2022
Fair Value Disclosures [Abstract]
Fair Value Measurements	Note 10 – Fair Value Measurements The Bank uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. In accordance with ASC Topic 820 “Fair Value Measurements and Disclosures” Fair Value Hierarchy In accordance with the guidance of ASC Topic 820, the Bank groups its financial assets and financial liabilities generally measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. Level 1: Valuation is based on quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 1 assets and liabilities generally include debt and equity securities that are traded in an active exchange market, as well as certain U.S. Treasury securities that are highly liquid and are actively traded in over-the-counter markets. Valuations are obtained from readily available pricing sources for market transactions involving identical assets or liabilities. Level 2: Valuation is based on inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. The valuation may be based on 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 for substantially the full term of the asset or liability. Level 3: Valuation is based on unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets and liabilities. Level 3 assets and liabilities include financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which determination of fair value requires significant management judgment or estimation. A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Financial assets measured at fair value on a recurring basis as of September 30, 2022 and December 31, 2021 are as follows: Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total At September 30, 2022 Available-for-sale Securities: U.S. treasury notes and bonds $ - $ - $ - $ - U.S. government agency and government sponsored enterprise (GSE) debt securities - 92,819 - 92,819 U.S. government agency pool securities - 64,521 - 64,521 U.S. government agency or GSE - 341,895 - 341,895 Total fair value of available-for-sale securities - 499,235 - 499,235 Other assets: MSRs - - 1,640 1,640 Total fair value $ - $ 499,235 $ 1,640 $ 500,875 At December 31, 2021 Available-for-sale Securities: U.S. treasury notes and bonds $ - $ - $ - $ - U.S. government agency and government sponsored enterprise (GSE) debt securities - 110,962 - 110,962 U.S. government agency pool securities - 20,861 - 20,861 U.S. government agency or GSE - 367,543 - 367,543 Total fair value of available-for-sale securities - 499,366 - 499,366 Other assets: MSRs - - 1,581 1,581 Total fair value $ - $ 499,366 $ 1,581 $ 500,947 There were no liabilities measured at fair value on a recurring basis as of September 30, 2022 and December 31, 2021. As of September 30, 2022 and December 31, 2021, the changes in Level 3 assets measured at fair value on a recurring basis are as follows: September 30, 2022 December 31, 2021 Beginning balance $ 1,581 $ 1,683 Realized and unrealized net losses: Included in net income 59 (102 ) Ending balance $ 1,640 $ 1,581 The valuation technique used for Level 3 mortgage servicing rights is their discounted cash flow. Inputs considered in determining Level 3 pricing include the anticipated prepayment rates, discount rates, and cost to service. Significant increases or decreases in any of those inputs in isolation would result in a significantly lower or higher fair value measurement. The following table presents quantitative information about the valuation technique and unobservable inputs applied to Level 3 fair value measurements for financial instruments measured at fair value on a recurring basis: Estimated Fair Value Valuation Technique Unobservable Inputs Range of Inputs Weighted Average Rate September 30, 2022 Financial instrument: MSRs $ 1,640 Discounted Cash Flow Discount Rate 6.02% - 7.93% 7.20% Weighted Average Prepayment Rate (Public Securities Association) 100% December 31, 2021 Financial instrument: MSRs $ 1,581 Discounted Cash Flow Discount Rate 6.02% - 7.93% 7.20% Weighted Average Prepayment Rate (Public Securities Association) 125% There were no transfers into or out of the Bank’s Level 3 financial instruments for the periods ended September 30, 2022 and December 31, 2021. Nonrecurring Fair Value Measurements Under certain circumstances, the Bank makes adjustments to fair value for assets and liabilities even though they are not measured at fair value on an ongoing basis. The Bank did not have any financial instruments carried on the consolidated statements of financial condition by caption and by level in fair value hierarchy for a nonrecurring change in fair value at September 30, 2022 and December 31, 2021, respectively. The fair value of loans subject to write downs is estimated using the appraised value of the underlying collateral, discounted as necessary due to management’s estimates of changes in economic conditions. Additionally, the Bank makes adjustments to nonfinancial assets and liabilities even though they are not measured at fair value on an ongoing basis. The Bank does not The following methods and assumptions were used by the Bank in estimating fair value disclosures for financial instruments: Cash and Cash Equivalents The carrying amount of cash and short-term instruments approximates fair value based on the short-term nature of the assets. Interest-Bearing Deposits in Banks Fair values for other interest-bearing deposits are estimated using discounted cash flow analyses based on current interest rates or yields for similar types of deposits. Federal Home Loan Bank Stock The Bank is a member of the FHLB of Des Moines. As a member, we are required to own stock of the FHLB, the amount of which is based primarily on the level of our borrowings from that institution. We also have the right to acquire additional shares of stock in the FHLB; however, to date, we have not done so. It is not practicable to determine the fair value of FHLB stock due to restrictions placed on its transferability. Investment Securities When quoted prices are available in an active market, the Bank classifies the securities within Level 1 of the valuation hierarchy. Level 1 securities include U.S. Treasury notes and bonds. At September 30, 2022, the Company classified trading securities in Level 1. If quoted market prices are not available, the Bank estimates fair values using pricing models and discounted cash flows that consider standard input factors such as observable market data, benchmark yields, interest rate volatilities, broker/dealer quotes, and credit spreads. Examples of such instruments, which would generally be classified within Level 2 of the valuation hierarchy, include U.S. GSE obligations, U.S. government agency pool securities, and other securities. Mortgage-backed securities are included in Level 2 if observable inputs are available. In certain cases where there is limited activity or less transparency around inputs to the valuation, the Bank would classify those securities in Level 3. At September 30, 2022 and December 31, 2021, the Bank did not have any Level 3 investment securities. Loans For variable-rate loans that re-price frequently and with no significant change in credit risk, fair values are based on carrying values. Fair values for other loans are estimated using discounted cash flow analyses, based upon interest rates currently being offered for loans with similar terms to borrowers of similar credit quality. Fair values for nonperforming loans are estimated using discounted cash flow analyses or underlying collateral values, where applicable. Loans are classified in Level 3. Mortgage Servicing Rights The fair value of MSRs is determined using models which depend on estimates of prepayment rates, discount rates and costs to service. MSRs are classified in Level 3. Deposit Liabilities The fair values disclosed for demand deposits (for example, interest and non-interest checking, passbook savings and certain types of money market accounts) are, by definition, equal to the amount payable on demand at the reporting date (that is, their carrying amounts). Fair values for fixed-rate certificates of deposit are estimated using a discounted cash flow calculation that applies current market interest rates on comparable instruments to a schedule of aggregated expected monthly maturities on time deposits. Deposit liabilities are classified in Level 3. Short-Term Borrowings The carrying amounts of federal funds purchased and FHLB advances maturing within ninety days approximate their fair values. We had no outstanding short-term borrowings at September 30, 2022 and December 31, 2021. Long-Term Borrowings The fair value of FHLB advances maturing after ninety days is determined based on expected present value techniques using current market interest rates for advances with similar terms and remaining maturities. We had no outstanding long-term borrowings at September 30, 2022 and December 31, 2021. Accrued Interest The carrying amount of accrued interest approximates fair value. Off-Balance Sheet Commitments and Contingent Liabilities Management does not believe it is practicable to provide an estimate of fair value for off-balance sheet commitments or contingent liabilities because of the uncertainty involved in attempting to assess the likelihood and timing of a commitment being drawn upon, coupled with a lack of an established market for these instruments and the wide diversity of fee structures. Fair Value of Other Financial Instruments The estimated fair values of the Bank’s financial instruments, excluding those assets recorded at fair value on a recurring basis on the Bank’s condensed consolidated statements of financial condition, are as follows: Estimated Fair Value Carrying Amount Level 1 Level 2 Level 3 (Dollars in thousands) September 30, 2022 Financial assets: Cash and cash equivalents $ 265,013 $ 265,013 $ - $ - Restricted cash 150 150 - - Federal Home Loan Bank stock 3,318 - 3,318 - Investment securities held-to-maturity 317,593 - 240,329 - Loans, net 1,306,888 - - 1,353,473 Total $ 1,892,962 $ 265,163 $ 243,647 $ 1,353,473 Financial liabilities: Deposits 2,351,149 - - 2,352,752 Total $ 2,351,149 $ - $ - $ 2,352,752 December 31, 2021 Financial assets: Cash and cash equivalents $ 557,403 $ 557,403 $ - $ - Restricted cash 150 150 - - Federal Home Loan Bank stock 2,814 - 2,814 - Investment securities held-to-maturity 312,294 - 310,372 - Loans, net 1,283,690 - - 1,330,529 Total $ 2,156,351 $ 557,553 $ 313,186 $ 1,330,529 Financial liabilities: Deposits $ 2,533,231 $ - $ - $ 2,527,806 Total $ 2,533,231 $ - $ - $ 2,527,806

Comprehensive Income (Loss)

Comprehensive Income (Loss)	9 Months Ended
	Sep. 30, 2022
Comprehensive Income Net Of Tax [Abstract]
Comprehensive Income (Loss)	Note 11 – Comprehensive Income (Loss) The components of accumulated other comprehensive income (loss), included in stockholders’ equity, are as follows: September 30, 2022 December 31, 2021 Net unrealized (loss) gain on available-for-sale securities $ (86,089 ) $ (5,857 ) Amounts reclassified from AOCI for (gain) on sale of investment securities available-for-sale included in net income - (272 ) Tax effect 19,384 1,380 Unrealized holding (loss) gain on available-for-sale securities, net of tax (66,705 ) (4,749 ) Gross unrealized holding loss on held-to-maturity securities (11,972 ) (15,864 ) Amortization of unrealized holding loss on held-to-maturity during the period 645 3,892 Unrealized holding loss on held-to-maturity securities (11,327 ) (11,972 ) Accumulated other comprehensive (loss) income $ (78,032 ) $ (16,721 )

Leases

Leases	9 Months Ended
	Sep. 30, 2022
Leases [Abstract]
Leases	Note 12 – Leases The Bank leases certain land, office spaces, and storage spaces. Leases with an initial term of 12 months or less are not recorded on the balance sheet. Instead, the Bank recognizes lease expense for these leases on a straight-line basis over the lease term. Most leases include one or more options to renew , with renewal terms that can extend the lease term from one to 50 years or more. The exercise of lease renewal options is at our sole discretion. The depreciable life of assets and leasehold improvements are limited by the expected lease terms, unless there is a transfer of title or purchase option reasonably certain of exercise. Certain of our lease agreements include rental payments based on a percentage of the prevailing market value of the lease and the average of the Treasury Bill Rate and the Guam Consumer Price Index figure, and others include rental payments adjusted periodically for inflation. The Bank's lease agreements do not contain any material residual value guarantees or material restrictive covenants. The Bank leases certain facilities from two separate entities in which two of its directors have separate ownership interests. Lease payments made to these entities during the nine months ended September 30, 2022 and 2021 approximated $291 thousand and $302 thousand, respectively. During the three months ended September 30, 2022 and 2021, lease payments made to these entities approximated $129 thousand and $97 thousand, respectively. Additionally, the Bank leases office space to third parties, with original lease terms ranging from 1 to 3 years with option periods ranging up to 12 years. At September 30, 2022, minimum future rents to be received under non-cancelable operating sublease agreements were $11 thousand and $29 thousand for the years ending December 31, 2022 and 2023, respectively. The cash flow from operating leases included in the measurement of lease liabilities during the nine months ended September 30, 2022 and 2021 were $2.1 million and $2.7 million, respectively. The following table summarizes the lease-related assets and liabilities recorded as part of other assets and other liabilities, respectively, in our condensed consolidated statements of financial condition at September 30, 2022 and December 31, 2021: September 30, 2022 December 31, 2021 Assets Operating lease right-of-use assets $ 27,846 $ 23,379 Total lease assets $ 27,846 $ 23,379 Liabilities Current Operating $ 1,932 $ 1,926 Noncurrent Operating 26,905 22,186 Total lease liabilities $ 28,837 $ 24,112 The operating lease costs and variable lease costs were $841 thousand and $2.4 million during the three and nine months ended September 30, 2022, respectively, and $911 thousand and $2.8 million during the three and nine months ended September 30, 2021, respectively. The following table provides the maturities of lease liabilities at September 30, 2022: Operating Leases (a) Total 2022 $ 767 $ 767 2023 2,893 2,893 2024 2,880 2,880 2025 2,824 2,824 2026 2,614 2,614 2027 2,282 2,282 After 2027 39,642 39,642 Total lease payments 53,902 53,902 Less: Interest (b) 25,065 25,065 Present value of lease liabilities (c) $ 28,837 $ 28,837 Note: For leases commencing prior to 2019, minimum lease payments exclude payments to landlords for real estate taxes and common area maintenance. (a) Operating lease payments include $18.9 million related to options to extend lease terms that are reasonably certain of being exercised. (b) Calculated using the incremental borrowing rate based on the lease term for each lease. (c) Includes the current portion of $1.9 million for operating leases. The following table provides the weighted-average lease term and discount rate at September 30, 2022: September 30, 2022 December 31, 2021 Weighted-average remaining lease term (years) Operating leases 26.0 25.6 Weighted-average discount rate Operating leases 4.03 % 4.15 %

Subordinated Debt

Subordinated Debt	9 Months Ended
	Sep. 30, 2022
Subordinated Borrowings [Abstract]
Subordinated Debt	Note 13 – Subordinated Debt On June 29, 2021, the Company issued $20.0 million in aggregate principal amount of its 4.75% Fixed-to-Floating Rate Subordinated Notes due July 1, 2031 (the “2031 Notes”). The 2031 Notes have a ten-year On June 27, 2019, the Company issued $15.0 million in aggregate principal amount of its 6.35% Fixed-to-Floating Rate Subordinated Notes due June 30, 2029 (the “2029 Notes” and together with the 2031 Notes, the “Notes”). The 2029 Notes have a ten-year Both notes are unsecured, subordinated obligations of the Company only and are not obligations of, and are not guaranteed by, any subsidiary of the Company. The Notes rank junior in right to payment to the Company’s current and future senior indebtedness.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2022
Subsequent Events [Abstract]
Subsequent Events	Note 14 – Subsequent Events Management has reviewed the events occurring through the date of this report, and there were no subsequent events that require additional disclosure to the accompanying financial statements except as set forth below: Reverse Stock Split On October 31, 2022, the Company effected a 1-for-500

Summary of Significant Accoun_2

Summary of Significant Accounting Policies and Recent Accounting Pronouncements (Policies)	9 Months Ended
	Sep. 30, 2022
Accounting Policies [Abstract]
Use of Estimates	Use of Estimates The preparation of condensed consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements, and the reported amounts of income and expenses during the periods presented. Actual results could differ from those estimates.
Restricted Cash	Restricted Cash Interest-bearing deposits in banks that mature within one year are carried at cost. $150 thousand of these deposits are held by the Bank jointly under the names of Bank of Guam and the Guam Insurance Commissioner, and serve as a bond for the Bank of Guam Trust Department.
COVID-19	COVID-19 The outbreak of a novel coronavirus (“COVID-19”) in 2020 and subsequent impact on public commerce and related business activities continues to impact the Company as well as a broad range of industries in which the Company’s customers operate and, in some instances, impaired their ability to fulfill their financial obligations to the Company. On March 3, 2020, the Federal Open Market Committee (FOMC) reduced the target range for federal funds by 50 basis points to 1.00% - 1.25%. This rate was further reduced to a target range of 0% - 0.25% on March 16, 2020. Improvements in economic conditions as well as accelerating inflations resulted in the FOMC increasing the target range by a total of 300bps; 25bps to 0.25% - 0.50% on March 16, 2022, 50bps to 0.75% - 1.00% on May 4, 2022, 75bps to 1.50% - 1.75% on June 15, 2022, 75bps to 2.25% - 2.50% on July 27, 2022, and 75bps to 3.00% - 3.25% on September 22, 2022. In the United States, the government enacted the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) on March 27, 2020. The CARES Act, among other things, created a $670 billion loan program (the “Paycheck Protection Program” or the “PPP”) for fully guaranteed loans (which may be forgiven) to small businesses for certain qualifying expenses. The PPP was modified and extended multiple times prior to its expiration on May 31, 2021. Currently one branch in Guam remains closed due to renovations, and will reopen upon completion. The Bank continues to provide a secure telecommuting program for those personnel who are able to perform their responsibilities remotely, the computer hardware and software needed to support those tasks, and established teleconferencing capabilities to reduce the number of people in attendance at all of its larger group meetings. The Company has not materially changed its accounting policies or procedures due to COVID-19.
Russia/Ukraine Conflict	Russia/Ukraine Conflict The current Russia and Ukraine
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements In March 2020, the FASB issued ASU 2020-04, " Reference Rate Reform (Topic 848), Facilitation of the Effects of Reference Rate Reform on Financial Reporting December 2021
Recently Issued but Not Yet Adopted Accounting Pronouncements	Recently Issued but Not Yet Adopted Accounting Pronouncements In June 2016, the FASB issued ASU 2016-13, “Financial Instruments – Credit Losses (Topic 326)” The Company was preparing to implement ASU 2016-13 when it was scheduled to become effective January 1, 2020, but the FASB announced on October 16, 2019, a delay of the effective date for smaller reporting companies until January 1, 2023. The Company will recognize a one-time cumulative effect adjustment to the allowance for loan losses as of the first reporting period in which the new standard is effective. • An economic forecast period of one year based on the relation of losses with key economic variables for each portfolio segment; • Segmentation of loans into pools that share common risk characteristics; and • Used the discounted cash flow (DCF) method to measure credit impairment on most of our loan portfolios and estimate lifetime credit losses using the conceptual components described above. The Company classifies its investment securities as available-for-sale or held-to-maturity. The Company’s investment security portfolio consists of U.S. government-sponsored agencies securities, which has an explicit or implicit guarantee from the U.S. government, are highly rated by major rating agencies, and have a long history of no credit losses. Accordingly, the Company does not anticipate to apply a loss assumption for its investment securities.
Fair Value Measurement Policy Policy	The Bank uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. In accordance with ASC Topic 820 “Fair Value Measurements and Disclosures” Fair Value Hierarchy In accordance with the guidance of ASC Topic 820, the Bank groups its financial assets and financial liabilities generally measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. Level 1: Valuation is based on quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 1 assets and liabilities generally include debt and equity securities that are traded in an active exchange market, as well as certain U.S. Treasury securities that are highly liquid and are actively traded in over-the-counter markets. Valuations are obtained from readily available pricing sources for market transactions involving identical assets or liabilities. Level 2: Valuation is based on inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. The valuation may be based on 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 for substantially the full term of the asset or liability. Level 3: Valuation is based on unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets and liabilities. Level 3 assets and liabilities include financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which determination of fair value requires significant management judgment or estimation. A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement.

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	9 Months Ended
	Sep. 30, 2022
Earnings Per Share Pro Forma [Abstract]
Summary of Earnings Per Common Share	Earnings per common share are computed based on reported net income, preferred stock dividends and the following common share data: Three Months Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Net income available to BankGuam Holding Company $ 5,155 $ 5,245 $ 12,331 $ 14,450 Less preferred stock dividends (177 ) (125 ) (422 ) (396 ) Net income attributable to common stockholders $ 4,978 $ 5,120 $ 11,909 $ 14,054 Weighted average number of common shares outstanding - used to calculate basic and diluted earnings per common share 9,728 9,723 9,726 9,714 Earnings per common share (EPS): Basic and diluted EPS $ 0.51 $ 0.53 $ 1.22 $ 1.45

Investment Securities (Tables)

Investment Securities (Tables)	9 Months Ended
	Sep. 30, 2022
Investments Debt And Equity Securities [Abstract]
Summary of Amortized Cost and Fair Value of Investment Securities, with Gross Unrealized Gains and Losses	The amortized cost and fair value of investment securities, with gross unrealized gains and losses, is presented as follows: September 30, 2022 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Securities Available-for-Sale U.S. government agency and government sponsored enterprise (GSE) debt securities $ 114,972 $ - $ (22,153 ) $ 92,819 U.S. government agency pool securities 65,153 23 (655 ) 64,521 U.S. government agency or GSE residential mortgage-backed securities 405,199 - (63,304 ) 341,895 Total $ 585,324 $ 23 $ (86,112 ) $ 499,235 Securities Held-to-Maturity U.S. government agency and government sponsored enterprise (GSE) debt securities $ 277,028 $ - $ (70,663 ) $ 206,365 U.S. government agency pool securities 2,071 - (41 ) 2,030 U.S. government agency or GSE residential mortgage-backed securities 38,494 - (6,560 ) 31,934 Total $ 317,593 $ - $ (77,264 ) $ 240,329 December 31, 2021 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Securities Available-for-Sale U.S. government agency and government sponsored enterprise (GSE) debt securities $ 114,969 $ - $ (4,007 ) $ 110,962 U.S. government agency pool securities 21,106 2 (247 ) 20,861 U.S. government agency or GSE residential mortgage-backed securities 369,419 1,957 (3,833 ) 367,543 Total $ 505,494 $ 1,959 $ (8,087 ) $ 499,366 Securities Held-to-Maturity U.S. government agency and government sponsored enterprise (GSE) debt securities $ 276,188 $ - $ (1,621 ) $ 274,567 U.S. government agency pool securities 3,028 8 (45 ) 2,991 U.S. government agency or GSE residential mortgage-backed securities 33,078 105 (369 ) 32,814 Total $ 312,294 $ 113 $ (2,035 ) $ 310,372
Summary of Proceeds and Gross Realized Gains from Sales of Available-for-sale Investment Securities	Proceeds and gross realized gains from the sales of available-for-sale investment securities for the nine months ended September 30, 2022 and 2021 are shown below. There were no sales of investment securities for the three months ended September 30, 2022 Nine Months Ended September 30, 2022 2021 Proceeds from sales $ - $ 46,993 Gross realized gains from sales $ - $ 272 Gross realized losses from sales $ - $ -
Summary of Amortized Cost and Estimated Fair Value of Investment Securities by Contractual Maturity	The amortized cost and estimated fair value of investment securities by contractual maturity at September 30, 2022 and December 31, 2021 are shown below. Actual maturities may differ from contractual maturities because issuers may have the right to call or borrowers the right to prepay obligations with or without call or prepayment penalties. At September 30, 2022, obligations of U.S. government corporations and agencies with amortized costs totaling $902.9 million consisted of residential mortgage-backed securities totaling $443.7 million and Small Business Administration agency pool securities totaling $67.2 million whose contractual maturity, or principal repayment, will follow the repayment of the underlying small business loans or mortgages. For purposes of the following table, the entire outstanding balance of these mortgage-backed securities issued by U.S. government corporations and agencies and SBA pools is categorized based on final maturity date. At September 30, 2022, the Bank estimates the average remaining life of these mortgage-backed securities and SBA pools to be approximately 5.6 years September 30, 2022 Available-for-Sale Held-to-Maturity Amortized Cost Estimated Fair Value Amortized Cost Estimated Fair Value Due within one year $ - $ - $ - $ - Due after one but within five years 9,385 8,908 2,568 2,358 Due after five but within ten years 157,687 132,278 70,805 56,840 Due after ten years 418,252 358,049 244,220 181,131 Total $ 585,324 $ 499,235 $ 317,593 $ 240,329 December 31, 2021 Available-for-Sale Held-to-Maturity Amortized Cost Estimated Fair Value Amortized Cost Estimated Fair Value Due within one year $ 105 $ 105 $ - $ - Due after one but within five years 8,331 8,377 1,228 1,246 Due after five but within ten years 151,682 148,389 62,925 62,257 Due after ten years 345,376 342,495 248,141 246,869 Total $ 505,494 $ 499,366 $ 312,294 $ 310,372
Summary of Gross Unrealized Losses and Fair Value of Investments, with Unrealized Losses of Temporarily Impaired Securities	The following table shows the gross unrealized losses and fair value of the Company’s investments with unrealized losses that are not deemed to be other-than-temporarily impaired, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at September 30, 2022 and December 31, 2021. September 30, 2022 Less Than Twelve Months More Than Twelve Months Total Unrealized Losses Estimated Fair Value Unrealized Losses Estimated Fair Value Unrealized Losses Estimated Fair Value Securities Available for Sale U.S. government agency and government sponsored enterprise (GSE) debt securities $ - $ - $ (22,153 ) $ 92,819 $ (22,153 ) $ 92,819 U.S. government agency pool securities (487 ) 54,955 (168 ) 4,559 (655 ) 59,514 U.S. government agency or GSE residential mortgage-backed securities (28,099 ) 174,861 (35,205 ) 167,034 (63,304 ) 341,895 Total $ (28,586 ) $ 229,816 $ (57,526 ) $ 264,412 $ (86,112 ) $ 494,228 Securities Held to Maturity US government agency and sponsored Agencies (GSE) debt securities $ (33,687 ) $ 79,190 $ (36,976 ) $ 127,175 $ (70,663 ) $ 206,365 U.S. government agency pool securities (3 ) 1,335 (38 ) 695 (41 ) 2,030 U.S. government agency or GSE residential mortgage-backed securities (942 ) 10,906 (5,618 ) 21,029 (6,560 ) 31,935 Total $ (34,632 ) $ 91,431 $ (42,632 ) $ 148,899 $ (77,264 ) $ 240,330 December 31, 2021 Less Than Twelve Months More Than Twelve Months Total Unrealized Losses Estimated Fair Value Unrealized Losses Estimated Fair Value Unrealized Losses Estimated Fair Value Securities Available for Sale U.S. government agency and government sponsored enterprise (GSE) debt securities $ (2,824 ) $ 82,145 $ (1,183 ) $ 28,817 $ (4,007 ) $ 110,962 U.S. government agency pool securities (71 ) 5,127 (176 ) 14,743 (247 ) 19,870 U.S. government agency or GSE residential mortgage-backed securities (3,833 ) 290,573 - - (3,833 ) 290,573 Total $ (6,728 ) $ 377,845 $ (1,359 ) $ 43,560 $ (8,087 ) $ 421,405 Securities Held to Maturity U.S. government agency and government sponsored enterprise (GSE) debt securities $ (1,395 ) $ 159,840 $ (226 ) $ 114,726 $ (1,621 ) $ 274,566 U.S. government agency pool securities (37 ) 1,507 (8 ) 403 (45 ) 1,910 U.S. government agency or GSE residential mortgage-backed securities (362 ) 28,498 (7 ) 529 (369 ) 29,027 Total $ (1,794 ) $ 189,845 $ (241 ) $ 115,658 $ (2,035 ) $ 305,503

Loans Held for Sale, Loans an_2

Loans Held for Sale, Loans and Allowance for Loan Losses (Tables)	9 Months Ended
	Sep. 30, 2022
Receivables [Abstract]
Loan Portfolio	The loan portfolio consisted of the following at: September 30, 2022 December 31, 2021 Amount Percent Amount Percent Commercial Commercial & industrial $ 247,011 18.4 % $ 295,835 22.4 % Commercial mortgage 772,433 57.4 % 699,269 52.9 % Commercial construction 8,443 0.6 % 23,588 1.8 % Commercial agriculture 562 0.0 % 592 0.0 % Total commercial 1,028,449 76.4 % 1,019,284 77.1 % Consumer Residential mortgage 145,380 10.8 % 135,377 10.2 % Home equity 2,546 0.2 % 2,232 0.2 % Automobile 18,189 1.4 % 18,220 1.4 % Other consumer loans 1 151,343 11.2 % 146,208 11.1 % Total consumer 317,458 23.6 % 302,037 22.9 % Gross loans 1,345,907 100.0 % 1,321,321 100.0 % Deferred loan (fees) costs, net (2,881 ) (3,223 ) Allowance for loan losses (36,137 ) (34,408 ) Loans, net $ 1,306,889 $ 1,283,690 1 Comprised of other revolving credit, installment loans, and overdrafts.
Activity of Allowance for Loan Losses	Set forth below is a summary of the Bank’s activity in the allowance for loan losses during the three and nine months ended September 30, 2022, and 2021, and the year ended December 31, 2021: Three Months Ended September 30, 2022 Three Months Ended September 30, 2021 Nine Months Ended September 30, 2022 Nine Months Ended September 30, 2021 Year Ended December 31, 2021 Balance, beginning of period $ 35,732 $ 36,093 $ 34,408 $ 34,805 $ 34,805 Charged off loans (1,559 ) (968 ) (4,206 ) (3,723 ) (4,950 ) Recoveries on loans previously charged off 539 447 1,660 1,540 2,403 Provision for loan losses 1,425 2,475 4,275 5,425 2,150 Balance, end of period $ 36,137 $ 38,047 $ 36,137 $ 38,047 $ 34,408
Schedule Of Credit Loss Related To Financing Receivables Current And Noncurrent	Set forth below is information regarding loan balances and the related allowance for loan losses, by portfolio type, for the three and nine months ended September 30, 2022 and 2021, and the year ended December 31, 2021, respectively. Commercial Residential Mortgages Consumer Total (Dollars in thousands) Nine Months Ended September 30, 2022 Allowance for loan losses: Balance at beginning of period $ 22,860 $ 2,304 $ 9,244 $ 34,408 Charge-offs (716 ) - (3,490 ) (4,206 ) Recoveries 158 2 1,500 1,660 Provision 2,323 (26 ) 1,978 4,275 Ending balance $ 24,625 $ 2,280 $ 9,232 $ 36,137 Allowance balance at end of period related to: Loans individually evaluated for impairment $ 3,510 $ 34 $ 920 $ 4,464 Loans collectively evaluated for impairment 21,115 2,246 8,312 31,673 Ending balance $ 24,625 $ 2,280 $ 9,232 $ 36,137 Loan balances at end of period: Loans individually evaluated for impairment $ 11,854 $ 38,577 $ 1,122 $ 51,553 Loans collectively evaluated for impairment 1,016,595 109,349 168,410 1,294,354 Ending balance $ 1,028,449 $ 147,926 $ 169,532 $ 1,345,907 Nine Months Ended September 30, 2021 Allowance for loan losses: Balance at beginning of period $ 21,213 $ 1,990 $ 11,602 $ 34,805 Charge-offs (77 ) (98 ) (3,548 ) (3,723 ) Recoveries 173 - 1,367 1,540 Provision 1,992 453 2,980 5,425 Ending balance $ 23,301 $ 2,345 $ 12,401 $ 38,047 Allowance balance at end of period related to: Loans individually evaluated for impairment $ 3,504 $ 50 $ 1,048 $ 4,602 Loans collectively evaluated for impairment 19,797 2,295 11,353 33,445 Ending balance $ 23,301 $ 2,345 $ 12,401 $ 38,047 Loan balances at end of period: Loans individually evaluated for impairment $ 61,043 $ 2,922 $ 1,207 $ 65,172 Loans collectively evaluated for impairment 1,000,889 132,150 172,700 1,305,739 Ending balance $ 1,061,932 $ 135,072 $ 173,907 $ 1,370,911 Year Ended December 31, 2021 Allowance for loan losses: Balance at beginning of year $ 21,213 $ 1,990 $ 11,602 $ 34,805 Charge-offs (115 ) (99 ) (4,736 ) (4,950 ) Recoveries 578 1 1,824 2,403 Provision 1,184 412 554 2,150 Ending balance $ 22,860 $ 2,304 $ 9,244 $ 34,408 Allowance balance at end of year related to: Loans individually evaluated for impairment $ 3,510 $ 50 $ 941 $ 4,501 Loans collectively evaluated for impairment 19,350 2,254 8,303 29,907 Ending balance $ 22,860 $ 2,304 $ 9,244 $ 34,408 Loan balances at end of year: Loans individually evaluated for impairment $ 48,459 $ 2,265 $ 1,059 $ 51,783 Loans collectively evaluated for impairment 970,825 135,343 163,370 1,269,538 Ending balance $ 1,019,284 $ 137,608 $ 164,429 $ 1,321,321
Summary of Delinquency Status of Loans	The following table provides a summary of the delinquency status of the Bank’s loans by portfolio type: 30-59 Days Past Due 60-89 Days Past Due 90 Days and Greater Non- Accrual 90 Days and Greater Still Accruing Total Past Due Current Total Loans Outstanding September 30, 2022 Commercial Commercial & industrial $ 2,610 $ 12,176 $ 6,549 $ - $ 21,335 $ 225,676 $ 247,011 Commercial mortgage 5,756 188 4,293 150 10,387 762,046 772,433 Commercial construction - - - - - 8,443 8,443 Commercial agriculture - - - - - 562 562 Total commercial 8,366 12,364 10,842 150 31,722 996,727 1,028,449 Consumer Residential mortgage 2,328 1,246 443 4 4,021 141,359 145,380 Home equity - - - - - 2,546 2,546 Automobile 198 92 - 73 363 17,826 18,189 Other consumer 1 1,421 964 106 828 3,319 148,024 151,343 Total consumer 3,947 2,302 549 905 7,703 309,755 317,458 Total $ 12,313 $ 14,666 $ 11,391 $ 1,055 $ 39,425 $ 1,306,482 $ 1,345,907 December 31, 2021 Commercial Commercial & industrial $ 56 $ 202 $ 7,338 $ 106 $ 7,702 $ 288,133 $ 295,835 Commercial mortgage 2,540 217 4,622 - 7,379 691,890 699,269 Commercial construction - - - - - 23,588 23,588 Commercial agriculture - - - - - 592 592 Total commercial 2,596 419 11,960 106 15,081 1,004,203 1,019,284 Consumer Residential mortgage 2,194 1,236 267 77 3,774 131,603 135,377 Home equity - - - - - 2,232 2,232 Automobile 407 162 - 41 610 17,610 18,220 Other consumer 1 2,037 1,024 69 866 3,996 142,212 146,208 Total consumer 4,638 2,422 336 984 8,380 293,657 302,037 Total $ 7,234 $ 2,841 $ 12,296 $ 1,090 $ 23,461 $ 1,297,860 $ 1,321,321 1 Comprised of other revolving credit, installment loans, and overdrafts.
Loans on Non-Accrual Status, by Portfolio	The following table provides information as of September 30, 2022 and December 31, 2021, with respect to loans on non-accrual status, by portfolio type: September 30, 2022 December 31, 2021 (Dollars in thousands) Non-accrual loans: Commercial Commercial & industrial $ 7,101 $ 7,610 Commercial mortgage 5,956 8,148 Total commercial 13,057 15,758 Consumer Residential mortgage $ 2,814 $ 1,660 Other consumer 1 158 152 Total consumer 2,972 1,812 Total non-accrual loans $ 16,029 $ 17,570 1 Comprised of other revolving credit, installment loans, and overdrafts.
Summary of Loans by Portfolio Type and Internal Credit Quality Ratings	The following table provides a summary of loans by portfolio type and the Bank’s internal credit quality ratings as of September 30, 2022 , and December 31, 2021 : September 30, 2022 December 31, 2021 (Dollars in thousands) Pass: Commercial & industrial $ 213,369 $ 266,300 Commercial mortgage 717,216 642,835 Commercial construction 8,443 23,588 Commercial agriculture 562 592 Residential mortgage 142,103 133,176 Home equity 2,546 2,232 Automobile 18,116 18,179 Other consumer 150,357 145,190 Total pass loans 1,252,712 1,232,092 Special Mention: Commercial & industrial 1,081 9,760 Commercial mortgage 40,811 11,051 Total special mention loans 41,892 20,811 Substandard: Commercial & industrial 26,261 12,645 Commercial mortgage 13,764 44,661 Residential mortgage 2,515 613 Other consumer - 2 Total substandard loans 42,540 57,921 Formula Classified: Residential mortgage 762 1,588 Automobile 73 41 Other consumer 986 1,016 Total formula classified loans 1,821 2,645 Doubtful: Commercial & industrial 6,300 7,130 Commercial mortgage 642 722 Total doubtful loans 6,942 7,852 Total outstanding loans, gross $ 1,345,907 $ 1,321,321
Schedule Of Non Accrual Loans And Restructured Loans	The following table sets forth information regarding non-accrual loans and restructured loans at September 30, 2022 and December 31, 2021: September 30, 2022 December 31, 2021 (Dollars in thousands) Impaired loans: Restructured loans: Non-accruing restructured loans $ 4,328 $ 6,083 Accruing restructured loans 33,584 32,595 Total restructured loans 37,912 38,678 Other impaired loans 13,641 13,105 Total impaired loans $ 51,553 $ 51,783 Impaired loans less than 90 days delinquent and included in total impaired loans $ 39,107 $ 38,398
Information Related to Impaired Loans	The table below contains additional information with respect to impaired loans, by portfolio type, at September 30, 2022 and December 31, 2021: Recorded Investment Unpaid Principal Balance Average Recorded Investment Interest Income Recognized (Dollars in thousands) September 30, 2022, with no related allowance recorded: Commercial & industrial $ 11,820 $ 11,943 $ 11,529 $ 34 Commercial mortgage 35,074 35,641 35,656 149 Residential mortgage 2,515 2,515 1,601 10 Other consumer - - - - Total impaired loans with no related allowance $ 49,409 $ 50,099 $ 48,786 $ 193 September 30, 2022, with a related allowance recorded: Commercial & industrial $ 96 $ 96 $ 230 $ - Commercial mortgage 168 183 151 - Residential mortgage 821 831 964 - Automobile 73 73 72 1 Other consumer 986 986 1,053 11 Total impaired loans with a related allowance $ 2,144 $ 2,169 $ 2,470 $ 12 December 31, 2021, with no related allowance recorded: Commercial & industrial $ 11,150 $ 11,150 $ 75,812 $ 56 Commercial mortgage 36,935 37,182 38,456 149 Residential mortgage 612 612 221 - Other consumer 2 2 4 - Total impaired loans with no related allowance $ 48,699 $ 48,946 $ 114,493 $ 205 December 31, 2021, with a related allowance recorded: Commercial & industrial $ 262 $ 262 $ 116 $ 2 Commercial mortgage 112 127 75 - Residential mortgage 1,653 1,663 1,921 1 Automobile 41 41 29 1 Other consumer 1,016 1,016 1,253 8 Total impaired loans with a related allowance $ 3,084 $ 3,109 $ 3,394 $ 12
Troubled Debt Restructurings	Additional information regarding performing and nonperforming TDRs at September 30, 2022 and December 31, 2021 is set forth in the following table: Number of Pre- Modification Outstanding Recorded Principal Post- Modification Outstanding Recorded Outstanding Balance Loans Investment Modifications Investment September 30, 2022 December 31, 2021 Performing Residential mortgage - $ - $ - $ - $ - $ - Commercial & industrial 8 5,734 - 5,734 4,685 3,696 Commercial mortgage 1 28,899 - 28,899 28,899 28,899 Consumer - - - - - - Total performing 9 34,633 - 34,633 33,584 32,595 Nonperforming Commercial & industrial 1 176 - 176 67 142 Commercial mortgage 6 5,954 - 5,954 4,261 5,941 Consumer - - - - - - Total nonperforming 7 6,130 - 6,130 4,328 6,083 Total Troubled Debt Restructurings 16 $ 40,763 $ - $ 40,763 $ 37,912 $ 38,678

Regulatory Capital Requiremen_2

Regulatory Capital Requirements (Tables)	9 Months Ended
	Sep. 30, 2022
Text Block [Abstract]
Summary of Actual Capital Amounts and Ratios	The Company’s actual capital amounts and ratios as of September 30, 2022 and December 31, 2021 are presented in the table below. Actual For Capital Adequacy Purposes To Be Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio At September 30, 2022: Total Capital (to Risk Weighted Assets) $ 232,755 15.057 % $ 123,664 8.000 % $ 154,580 10.000 % Tier 1 Capital (to Risk Weighted Assets) $ 178,884 11.572 % $ 92,748 6.000 % $ 123,664 8.000 % Tier 1 Capital (to Average Assets) $ 178,884 6.668 % $ 107,301 4.000 % $ 134,127 5.000 % Common Equity Tier 1 Capital (to Risk Weighted Assets) $ 169,102 10.939 % $ 69,561 4.500 % $ 100,477 6.500 % At December 31, 2021: Total Capital (to Risk Weighted Assets) $ 222,493 15.161 % $ 117,403 8.000 % $ 146,753 10.000 % Tier 1 Capital (to Risk Weighted Assets) $ 168,623 11.490 % $ 88,052 6.000 % $ 117,403 8.000 % Tier 1 Capital (to Average Assets) $ 168,623 5.792 % $ 116,461 4.000 % $ 145,577 5.000 % Common Equity Tier 1 Capital (to Risk Weighted Assets) $ 158,840 10.824 % $ 66,039 4.500 % $ 95,390 6.500 %

Off-Balance-Sheet Activities (T

Off-Balance-Sheet Activities (Tables)	9 Months Ended
	Sep. 30, 2022
Fair Value Disclosures [Abstract]
Summary of Financial Instruments with Off-Balance-Sheet Risk	A summary of financial instruments with off-balance-sheet risk at September 30, 2022 and December 31, 2021 is as follows: September 30, 2022 December 31, 2021 Commitments to extend credit $ 167,117 $ 162,569 Letters of credit: Standby letters of credit $ 50,263 $ 43,239 Commercial letters of credit 2,034 2,366 Total $ 52,297 $ 45,605

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2022
Fair Value Disclosures [Abstract]
Fair Value, Assets Measured on Recurring Basis	Financial assets measured at fair value on a recurring basis as of September 30, 2022 and December 31, 2021 are as follows: Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total At September 30, 2022 Available-for-sale Securities: U.S. treasury notes and bonds $ - $ - $ - $ - U.S. government agency and government sponsored enterprise (GSE) debt securities - 92,819 - 92,819 U.S. government agency pool securities - 64,521 - 64,521 U.S. government agency or GSE - 341,895 - 341,895 Total fair value of available-for-sale securities - 499,235 - 499,235 Other assets: MSRs - - 1,640 1,640 Total fair value $ - $ 499,235 $ 1,640 $ 500,875 At December 31, 2021 Available-for-sale Securities: U.S. treasury notes and bonds $ - $ - $ - $ - U.S. government agency and government sponsored enterprise (GSE) debt securities - 110,962 - 110,962 U.S. government agency pool securities - 20,861 - 20,861 U.S. government agency or GSE - 367,543 - 367,543 Total fair value of available-for-sale securities - 499,366 - 499,366 Other assets: MSRs - - 1,581 1,581 Total fair value $ - $ 499,366 $ 1,581 $ 500,947
Assets Measured at Fair Value on Recurring Basis	As of September 30, 2022 and December 31, 2021, the changes in Level 3 assets measured at fair value on a recurring basis are as follows: September 30, 2022 December 31, 2021 Beginning balance $ 1,581 $ 1,683 Realized and unrealized net losses: Included in net income 59 (102 ) Ending balance $ 1,640 $ 1,581
Summary of Valuation Techniques and Unobservable Inputs	The following table presents quantitative information about the valuation technique and unobservable inputs applied to Level 3 fair value measurements for financial instruments measured at fair value on a recurring basis: Estimated Fair Value Valuation Technique Unobservable Inputs Range of Inputs Weighted Average Rate September 30, 2022 Financial instrument: MSRs $ 1,640 Discounted Cash Flow Discount Rate 6.02% - 7.93% 7.20% Weighted Average Prepayment Rate (Public Securities Association) 100% December 31, 2021 Financial instrument: MSRs $ 1,581 Discounted Cash Flow Discount Rate 6.02% - 7.93% 7.20% Weighted Average Prepayment Rate (Public Securities Association) 125%
Fair Value of Other Financial Instruments	The estimated fair values of the Bank’s financial instruments, excluding those assets recorded at fair value on a recurring basis on the Bank’s condensed consolidated statements of financial condition, are as follows: Estimated Fair Value Carrying Amount Level 1 Level 2 Level 3 (Dollars in thousands) September 30, 2022 Financial assets: Cash and cash equivalents $ 265,013 $ 265,013 $ - $ - Restricted cash 150 150 - - Federal Home Loan Bank stock 3,318 - 3,318 - Investment securities held-to-maturity 317,593 - 240,329 - Loans, net 1,306,888 - - 1,353,473 Total $ 1,892,962 $ 265,163 $ 243,647 $ 1,353,473 Financial liabilities: Deposits 2,351,149 - - 2,352,752 Total $ 2,351,149 $ - $ - $ 2,352,752 December 31, 2021 Financial assets: Cash and cash equivalents $ 557,403 $ 557,403 $ - $ - Restricted cash 150 150 - - Federal Home Loan Bank stock 2,814 - 2,814 - Investment securities held-to-maturity 312,294 - 310,372 - Loans, net 1,283,690 - - 1,330,529 Total $ 2,156,351 $ 557,553 $ 313,186 $ 1,330,529 Financial liabilities: Deposits $ 2,533,231 $ - $ - $ 2,527,806 Total $ 2,533,231 $ - $ - $ 2,527,806

Comprehensive Income (Loss) (Ta

Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 30, 2022
Comprehensive Income Net Of Tax [Abstract]
Components of Accumulated Other Comprehensive Income (Loss) Included in Stockholder's Equity	The components of accumulated other comprehensive income (loss), included in stockholders’ equity, are as follows: September 30, 2022 December 31, 2021 Net unrealized (loss) gain on available-for-sale securities $ (86,089 ) $ (5,857 ) Amounts reclassified from AOCI for (gain) on sale of investment securities available-for-sale included in net income - (272 ) Tax effect 19,384 1,380 Unrealized holding (loss) gain on available-for-sale securities, net of tax (66,705 ) (4,749 ) Gross unrealized holding loss on held-to-maturity securities (11,972 ) (15,864 ) Amortization of unrealized holding loss on held-to-maturity during the period 645 3,892 Unrealized holding loss on held-to-maturity securities (11,327 ) (11,972 ) Accumulated other comprehensive (loss) income $ (78,032 ) $ (16,721 )

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2022
Leases [Abstract]
Summary of Lease Related Assets and Liabilities Recorded in Unaudited Condensed Consolidated Statements of Financial Condition	The following table summarizes the lease-related assets and liabilities recorded as part of other assets and other liabilities, respectively, in our condensed consolidated statements of financial condition at September 30, 2022 and December 31, 2021: September 30, 2022 December 31, 2021 Assets Operating lease right-of-use assets $ 27,846 $ 23,379 Total lease assets $ 27,846 $ 23,379 Liabilities Current Operating $ 1,932 $ 1,926 Noncurrent Operating 26,905 22,186 Total lease liabilities $ 28,837 $ 24,112
Schedule of Maturities of Lease Liabilities Under Operating Leases	The following table provides the maturities of lease liabilities at September 30, 2022: Operating Leases (a) Total 2022 $ 767 $ 767 2023 2,893 2,893 2024 2,880 2,880 2025 2,824 2,824 2026 2,614 2,614 2027 2,282 2,282 After 2027 39,642 39,642 Total lease payments 53,902 53,902 Less: Interest (b) 25,065 25,065 Present value of lease liabilities (c) $ 28,837 $ 28,837
Summary Of Weighted Average Lease Term And Discount Rate	The following table provides the weighted-average lease term and discount rate at September 30, 2022: September 30, 2022 December 31, 2021 Weighted-average remaining lease term (years) Operating leases 26.0 25.6 Weighted-average discount rate Operating leases 4.03 % 4.15 %

Nature of Business - Additional

Nature of Business - Additional Information (Detail) - Branch	Sep. 30, 2022	Jul. 06, 2021	Jul. 01, 2016
ASC Trust LLC [Member]
Segment Reporting Information [Line Items]
Ownership percentage		70%
Guam [Member]
Segment Reporting Information [Line Items]
Number of branches	7
CNMI [Member]
Segment Reporting Information [Line Items]
Number of branches	3
FSM [Member]
Segment Reporting Information [Line Items]
Number of branches	4
RMI [Member]
Segment Reporting Information [Line Items]
Number of branches	1
ROP [Member]
Segment Reporting Information [Line Items]
Number of branches	1
San Francisco, California [Member]
Segment Reporting Information [Line Items]
Number of branches	1
ASC Trust Corporation [Member]
Segment Reporting Information [Line Items]
Percentage of Voting common stock acquire		25%
ASC Trust Corporation [Member] | Maximum [Member]
Segment Reporting Information [Line Items]
Percentage of shares acquire			70%
Bank Branch [Member]
Segment Reporting Information [Line Items]
Number of branches	17

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands								9 Months Ended
	Sep. 22, 2022	Jul. 27, 2022	Jun. 15, 2022	May 04, 2022	Mar. 16, 2022	Mar. 16, 2020	Mar. 03, 2020	Sep. 30, 2022	Dec. 31, 2021	Mar. 27, 2020
Summary Of Significant Accounting Policies [Line Items]
Interest bearing deposits in banks								$ 226,163	$ 520,743
Economic forecast period								1 year
ASU 2020-04 [Member]
Summary Of Significant Accounting Policies [Line Items]
Change in accounting principle, accounting standards update, adopted [true false]								true
Change in accounting principle, accounting standards update, adoption date								Dec. 31, 2021
Change in accounting principle, accounting standards update, immaterial effect [true false]								true
Paycheck Protection Program [Member]
Summary Of Significant Accounting Policies [Line Items]
Debt instrument, face amount								$ 149,000	$ 149,000
COVID 19 [Member] | Paycheck Protection Program [Member]
Summary Of Significant Accounting Policies [Line Items]
Debt instrument, face amount										$ 670,000,000
COVID 19 [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Debt instrument basis spread on variable rate	3%	2.25%	1.50%	0.75%	0.25%	0%	1%
COVID 19 [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Debt instrument basis spread on variable rate	3.25%	2.50%	1.75%	1%	0.50%	0.25%	1.25%
Base Rate [Member] | COVID 19 [Member]
Summary Of Significant Accounting Policies [Line Items]
Debt instrument basis spread on variable rate	0.75%	0.75%	0.75%	0.50%	0.25%		0.50%	3%
Bank of Guam Trust Department Customer [Member]
Summary Of Significant Accounting Policies [Line Items]
Interest bearing deposits in banks								$ 150

Earnings Per Common Share - Add

Earnings Per Common Share - Additional Information (Detail) shares in Thousands	1 Months Ended
	Apr. 30, 2022	Sep. 30, 2022 shares	Sep. 30, 2021 shares
Earnings Per Share [Abstract]
Shares subscribed and not issued		0	0
Reverse stock split ratio	0.002

Earnings Per Common Share - Sum

Earnings Per Common Share - Summary of Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share [Abstract]
Net income available to BankGuam Holding Company	$ 5,155	$ 5,245	$ 12,331	$ 14,450
Preferred stock dividend	(177)	(125)	(422)	(396)
Net income attributable to common stockholders	$ 4,978	$ 5,120	$ 11,909	$ 14,054
Weighted average number of common shares outstanding - used to calculate basic and diluted earnings per common share	9,728	9,723	9,726	9,714
Earnings per common share (EPS):
Basic EPS	$ 0.51	$ 0.53	$ 1.22	$ 1.45
Earnings per common share (EPS):
Diluted EPS	$ 0.51	$ 0.53	$ 1.22	$ 1.45

Investment Securities - Summary

Investment Securities - Summary of Amortized Cost and Fair Value of Investment Securities, with Gross Unrealized Gains and Losses (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Schedule Of Available For Sale Securities [Line Items]
Securities Available for Sale, Amortized Cost	$ 585,324	$ 505,494
Securities Available for Sale, Gross Unrealized Gains	23	1,959
Securities Available for Sale, Gross Unrealized Losses	(86,112)	(8,087)
Securities Available for Sale, Estimated Fair Value	499,235	499,366
Securities Held to Maturity, Amortized Cost	317,593	312,294
Securities Held to Maturity, Gross Unrealized Gains		113
Securities Held to Maturity, Gross Unrealized Losses	(77,264)	(2,035)
Securities Held to Maturity, Estimated Fair Value	240,329	310,372
U.S. Government Agency and Government Sponsored Enterprise (GSE) Debt Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Securities Available for Sale, Amortized Cost	114,972	114,969
Securities Available for Sale, Gross Unrealized Losses	(22,153)	(4,007)
Securities Available for Sale, Estimated Fair Value	92,819	110,962
Securities Held to Maturity, Amortized Cost	277,028	276,188
Securities Held to Maturity, Gross Unrealized Losses	(70,663)	(1,621)
Securities Held to Maturity, Estimated Fair Value	206,365	274,567
U.S. Government Agency Pool Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Securities Available for Sale, Amortized Cost	65,153	21,106
Securities Available for Sale, Gross Unrealized Gains	23	2
Securities Available for Sale, Gross Unrealized Losses	(655)	(247)
Securities Available for Sale, Estimated Fair Value	64,521	20,861
Securities Held to Maturity, Amortized Cost	2,071	3,028
Securities Held to Maturity, Gross Unrealized Gains		8
Securities Held to Maturity, Gross Unrealized Losses	(41)	(45)
Securities Held to Maturity, Estimated Fair Value	2,030	2,991
U.S. Government Agency or GSE Residential Mortgage-Backed Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Securities Available for Sale, Amortized Cost	405,199	369,419
Securities Available for Sale, Gross Unrealized Gains		1,957
Securities Available for Sale, Gross Unrealized Losses	(63,304)	(3,833)
Securities Available for Sale, Estimated Fair Value	341,895	367,543
Securities Held to Maturity, Amortized Cost	38,494	33,078
Securities Held to Maturity, Gross Unrealized Gains		105
Securities Held to Maturity, Gross Unrealized Losses	(6,560)	(369)
Securities Held to Maturity, Estimated Fair Value	$ 31,934	$ 32,814

Investment Securities - Additio

Investment Securities - Additional Information (Detail)		9 Months Ended
	Jul. 06, 2022 USD ($)	Sep. 30, 2022 USD ($) Securities	Sep. 30, 2021 USD ($)	Jun. 29, 2022 USD ($)	Dec. 31, 2021 USD ($)
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Available for sale debt securities | $		$ 499,235,000			$ 499,366,000
Investment securities in unrealized loss position were not other-than-temporarily impaired | Securities		238
Notes, aggregate principal amount | $		$ 34,451,000			34,400,000
Proceeds from issuance of subordinated debt, net | $			$ 19,576,000
ASC Trust LLC [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Proceeds from issuance of subordinated debt, net | $	$ 6,200,000
Percentage of Voting common stock acquire				25%
Stock purchase agreement date	May 27, 2016
Non-controlling interest	70%
ASC Trust LLC [Member] | Subordinated Notes [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Notes, aggregate principal amount | $				$ 20,000,000
ASC Trust LLC [Member] | Director
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Percentage of non minority voting of common stock owned		5%
U.S. Government Corporations and Agencies [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Available for sale debt securities | $		$ 902,900,000
Small Business Administration (SBA) Pool Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Available for sale debt securities | $		$ 67,200,000
Estimated average remaining life securities		5 years 7 months 6 days
Investment securities in unrealized loss position were not other-than-temporarily impaired | Securities		45
Residential Mortgage Backed Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Available for sale debt securities | $		$ 443,700,000
Estimated average remaining life securities		5 years 7 months 6 days
Agency Securities Issued by Federal Home Loan Bank (FHLB) [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Investment securities in unrealized loss position were not other-than-temporarily impaired | Securities		26
Mortgage-Backed Securities Issued by Federal Home Loan Corporation (FHLMC) [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Investment securities in unrealized loss position were not other-than-temporarily impaired | Securities		34
Agency Securities Issued by Federal Home Loan Mortgage Corporation (FHLMC) [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Investment securities in unrealized loss position were not other-than-temporarily impaired | Securities		19
Mortgage Backed Securities Issued By Federal National Mortgage Association (FNMA) [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Investment securities in unrealized loss position were not other-than-temporarily impaired | Securities		75
Agency Security Issued by Federal National Mortgage Association (FNMA) [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Investment securities in unrealized loss position were not other-than-temporarily impaired | Securities		1
Government National Mortgage Association (GNMA) [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Investment securities in unrealized loss position were not other-than-temporarily impaired | Securities		20
Agency Security Issued by Federal Farm Credit Banks (FFCB) [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Investment securities in unrealized loss position were not other-than-temporarily impaired | Securities		18
Pledged to Secure Various Government Deposits and to meet Other Public Requirements [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Investment securities at carrying value, pledged | $		$ 660,100,000			$ 558,800,000

Investment Securities - Summa_2

Investment Securities - Summary of Proceeds and Gross Realized Gains from Sales of Available-for-sale Investment Securities (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($)
Investments Debt And Equity Securities [Abstract]
Proceeds from sales of available-for-sale securities	$ 46,993
Gross realized gains from sales	$ 272

Investment Securities - Summa_3

Investment Securities - Summary of Amortized Cost and Estimated Fair Value of Investment Securities by Contractual Maturity (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Investments Debt And Equity Securities [Abstract]
Available for sale, Amortized cost, Due within one year		$ 105
Available for sale, Amortized cost, Due after one but within five years	$ 9,385	8,331
Available for sale, Amortized cost, Due after five but within ten years	157,687	151,682
Available for sale, Amortized cost, Due after ten years	418,252	345,376
Securities Available for Sale, Amortized Cost	585,324	505,494
Available for sale, Estimated Fair Value, Due within one year		105
Available for sale, Estimated Fair Value, Due after one but within five years	8,908	8,377
Available for sale, Estimated Fair Value, Due after five but within ten years	132,278	148,389
Available for sale, Estimated Fair Value, Due after ten years	358,049	342,495
Securities Available for Sale, Estimated Fair Value	499,235	499,366
Held to Maturity, Amortized Cost, Due after one but within five years	2,568	1,228
Held to Maturity, Amortized Cost, Due after five but within ten years	70,805	62,925
Held to Maturity, Amortized Cost, Due after ten years	244,220	248,141
Securities Held to Maturity, Amortized Cost	317,593	312,294
Held to maturity, Estimated Fair Value, Due after one but within five years	2,358	1,246
Held to maturity, Estimated Fair Value, Due after five but within ten years	56,840	62,257
Held to maturity, Estimated Fair Value, Due after ten years	181,131	246,869
Securities Held to Maturity, Estimated Fair Value	$ 240,329	$ 310,372

Investment Securities - Summa_4

Investment Securities - Summary of Gross Unrealized Losses and Fair Value of Investments, with Unrealized Losses of Temporarily Impaired Securities (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Schedule Of Available For Sale Securities [Line Items]
Securities Available for Sale, Unrealized Losses, Less Than Twelve Months	$ (28,586)	$ (6,728)
Securities Available for Sale, Estimated Fair Value, Less Than Twelve Months	229,816	377,845
Securities Available for Sale, Unrealized Losses, More Than Twelve Months	(57,526)	(1,359)
Securities Available for Sale, Estimated Fair Value, More Than Twelve Months	264,412	43,560
Securities Available for Sale, Unrealized Losses, Total	(86,112)	(8,087)
Securities Available for Sale, Estimated Fair Value, Total	494,228	421,405
Securities Held to Maturity, Unrealized Losses, Less Than Twelve Months	(34,632)	(1,794)
Securities Held to Maturity, Estimated Fair Value, Less Than Twelve Months	91,431	189,845
Securities Held to Maturity, Unrealized Losses, More Than Twelve Months	(42,632)	(241)
Securities Held to Maturity, Estimated Fair Value, More Than Twelve Months	148,899	115,658
Securities Held to Maturity, Unrealized Losses, Total	(77,264)	(2,035)
Securities Held to Maturity, Estimated Fair Value, Total	240,330	305,503
U.S. Government Agency and Government Sponsored Enterprise (GSE) Debt Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Securities Available for Sale, Unrealized Losses, Less Than Twelve Months		(2,824)
Securities Available for Sale, Estimated Fair Value, Less Than Twelve Months		82,145
Securities Available for Sale, Unrealized Losses, More Than Twelve Months	(22,153)	(1,183)
Securities Available for Sale, Estimated Fair Value, More Than Twelve Months	92,819	28,817
Securities Available for Sale, Unrealized Losses, Total	(22,153)	(4,007)
Securities Available for Sale, Estimated Fair Value, Total	92,819	110,962
Securities Held to Maturity, Unrealized Losses, Less Than Twelve Months	(33,687)	(1,395)
Securities Held to Maturity, Estimated Fair Value, Less Than Twelve Months	79,190	159,840
Securities Held to Maturity, Unrealized Losses, More Than Twelve Months	(36,976)	(226)
Securities Held to Maturity, Estimated Fair Value, More Than Twelve Months	127,175	114,726
Securities Held to Maturity, Unrealized Losses, Total	(70,663)	(1,621)
Securities Held to Maturity, Estimated Fair Value, Total	206,365	274,566
U.S. Government Agency Pool Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Securities Available for Sale, Unrealized Losses, Less Than Twelve Months	(487)	(71)
Securities Available for Sale, Estimated Fair Value, Less Than Twelve Months	54,955	5,127
Securities Available for Sale, Unrealized Losses, More Than Twelve Months	(168)	(176)
Securities Available for Sale, Estimated Fair Value, More Than Twelve Months	4,559	14,743
Securities Available for Sale, Unrealized Losses, Total	(655)	(247)
Securities Available for Sale, Estimated Fair Value, Total	59,514	19,870
Securities Held to Maturity, Unrealized Losses, Less Than Twelve Months	(3)	(37)
Securities Held to Maturity, Estimated Fair Value, Less Than Twelve Months	1,335	1,507
Securities Held to Maturity, Unrealized Losses, More Than Twelve Months	(38)	(8)
Securities Held to Maturity, Estimated Fair Value, More Than Twelve Months	695	403
Securities Held to Maturity, Unrealized Losses, Total	(41)	(45)
Securities Held to Maturity, Estimated Fair Value, Total	2,030	1,910
U.S. Government Agency or GSE Residential Mortgage-Backed Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Securities Available for Sale, Unrealized Losses, Less Than Twelve Months	(28,099)	(3,833)
Securities Available for Sale, Estimated Fair Value, Less Than Twelve Months	174,861	290,573
Securities Available for Sale, Unrealized Losses, More Than Twelve Months	(35,205)
Securities Available for Sale, Estimated Fair Value, More Than Twelve Months	167,034
Securities Available for Sale, Unrealized Losses, Total	(63,304)	(3,833)
Securities Available for Sale, Estimated Fair Value, Total	341,895	290,573
Securities Held to Maturity, Unrealized Losses, Less Than Twelve Months	(942)	(362)
Securities Held to Maturity, Estimated Fair Value, Less Than Twelve Months	10,906	28,498
Securities Held to Maturity, Unrealized Losses, More Than Twelve Months	(5,618)	(7)
Securities Held to Maturity, Estimated Fair Value, More Than Twelve Months	21,029	529
Securities Held to Maturity, Unrealized Losses, Total	(6,560)	(369)
Securities Held to Maturity, Estimated Fair Value, Total	$ 31,935	$ 29,027

Loans Held for Sale, Loans an_3

Loans Held for Sale, Loans and Allowance for Loan Losses - Additional Information (Detail)	9 Months Ended		12 Months Ended
	Sep. 30, 2022 USD ($) Borrowing Receipt BorrowingRelationship	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($) Borrowing	Mar. 27, 2020 USD ($)
Accounts Notes And Loans Receivable [Line Items]
Bank originated of mortgage loans held for sale	$ 6,400,000	$ 22,400,000
Sale of mortgage loans held for sale	6,400,000	22,400,000
Unpaid principal balances of mortgage loans serviced	172,300,000		$ 181,100,000
Mortgage loan payment of principal	8,800,000
Mortgage servicing rights at their fair value	1,600,000		1,600,000
Deferred fee (income) costs	$ 2,881,000		$ 3,223,000
Number of borrowing relationships | Borrowing	10		10
Gross loans, total amount	$ 1,345,907,000	$ 1,370,911,000	$ 1,321,321,000
Gross loans, Total Percent	100%		100%
Accrual of interest payments on loan	90 days
Nonaccrual status, charged off on loan	120 days
Nonaccrual loans, number of receipt of consecutive payments required for restoring accrual status | Receipt	6
All loans and credit cards delinquent	90 days
Real estate loans delinquent	90 days
Delinquent real estate loans foreclosure completion period	90 days
Period for loans delinquent under formula category	60 days
Maximum value of commercial loans considered to include in monthly formula total	$ 250,000
Troubled Debt Restructurings (TDRs)	$ 37,912,000		$ 38,678,000
Number of days deferrals residential mortgage and commercial loans	90 days
Number of days deferrals for consumer and auto mobile loans	90 days
Number of days troubled debt restructurings loans delinquent	30 days
Defaults troubled debt restructuring	0	0
Number of significant borrowing relationship in bankruptcy | BorrowingRelationship	1
Loans receivable, amount under bankruptcy	$ 6,300,000
Borrowing Relationship One [Member]
Accounts Notes And Loans Receivable [Line Items]
Specific reserve	3,500,000
COVID 19 [Member]
Accounts Notes And Loans Receivable [Line Items]
Specific reserve	3,000,000
Commercial Mortgage [Member]
Accounts Notes And Loans Receivable [Line Items]
Gross loans, total amount	772,433,000		699,269,000
Commercial Mortgage [Member] | Troubled Debt Restructuring
Accounts Notes And Loans Receivable [Line Items]
Increase (Decrease) in total gross loans	$ 767,000		38,700,000
Paycheck Protection Program [Member]
Accounts Notes And Loans Receivable [Line Items]
Debt instrument, term	2 years
Debt instrument, interest rate	1%
Debt instrument, face amount	$ 149,000,000		149,000,000
Proceeds from loans fund	149,000,000		149,000,000
Debt instrument, outstanding balance	3,400,000
Debt instrument unearned fees	$ 51,000
Paycheck Protection Program [Member] | COVID 19 [Member]
Accounts Notes And Loans Receivable [Line Items]
Debt instrument, face amount				$ 670,000,000,000
5-Year Paycheck Protection Program [Member]
Accounts Notes And Loans Receivable [Line Items]
Debt instrument, term		5 years
Debt instrument, interest rate		1%
Minimum [Member]
Accounts Notes And Loans Receivable [Line Items]
Percentage of Loan collateralized	110%
Minimum [Member] | Paycheck Protection Program [Member]
Accounts Notes And Loans Receivable [Line Items]
Debt instrument loan origination fee paid from small business administration in percentage	1%
Maximum [Member] | Paycheck Protection Program [Member]
Accounts Notes And Loans Receivable [Line Items]
Debt instrument loan origination fee paid from small business administration in percentage	5%
10 Largest Borrowing Relationship [Member]
Accounts Notes And Loans Receivable [Line Items]
Gross loans, total amount	$ 341,900,000		$ 341,900,000
Gross loans, Total Percent	25.40%		25.40%
Commercial Mortgage [Member]
Accounts Notes And Loans Receivable [Line Items]
Increase (Decrease) percentage of gross loan	(5.09%)

Loans Held for Sale, Loans an_4

Loans Held for Sale, Loans and Allowance for Loan Losses - Loan Portfolio (Detail) - USD ($) $ in Thousands		Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020
Accounts Notes And Loans Receivable [Line Items]
Gross loans, total amount		$ 1,345,907		$ 1,321,321	$ 1,370,911
Deferred loan (fees) costs, net		(2,881)		(3,223)
Allowance for loan losses		(36,137)	$ (35,732)	(34,408)	$ (38,047)	$ (36,093)	$ (34,805)
Loans, net		$ 1,306,889		$ 1,283,690
Commercial, Percent		76.40%		77.10%
Consumer, Percent		23.60%		22.90%
Gross loans, Total Percent		100%		100%
Automobile [Member]
Accounts Notes And Loans Receivable [Line Items]
Gross loans, total amount		$ 18,189		$ 18,220
Consumer, Percent		1.40%		1.40%
Residential Mortgage Loans [Member]
Accounts Notes And Loans Receivable [Line Items]
Gross loans, total amount		$ 145,380		$ 135,377
Consumer, Percent		10.80%		10.20%
Home Equity [Member]
Accounts Notes And Loans Receivable [Line Items]
Gross loans, total amount		$ 2,546		$ 2,232
Consumer, Percent		0.20%		0.20%
Commercial & Industrial [Member]
Accounts Notes And Loans Receivable [Line Items]
Gross loans, total amount		$ 247,011		$ 295,835
Commercial, Percent		18.40%		22.40%
Commercial Mortgage [Member]
Accounts Notes And Loans Receivable [Line Items]
Gross loans, total amount		$ 772,433		$ 699,269
Commercial, Percent		57.40%		52.90%
Commercial Construction Loan [Member]
Accounts Notes And Loans Receivable [Line Items]
Gross loans, total amount		$ 8,443		$ 23,588
Commercial, Percent		0.60%		1.80%
Commercial Agriculture [Member]
Accounts Notes And Loans Receivable [Line Items]
Gross loans, total amount		$ 562		$ 592
Commercial, Percent		0%		0%
Commercial [Member]
Accounts Notes And Loans Receivable [Line Items]
Gross loans, total amount		$ 1,028,449		$ 1,019,284
Other Consumer Loans [Member]
Accounts Notes And Loans Receivable [Line Items]
Gross loans, total amount	[1]	$ 151,343		$ 146,208
Consumer, Percent	[1]	11.20%		11.10%
Consumer Loans [Member]
Accounts Notes And Loans Receivable [Line Items]
Gross loans, total amount		$ 317,458		$ 302,037
[1]Comprised of other revolving credit, installment loans, and overdrafts.

Loans Held for Sale, Loans an_5

Loans Held for Sale, Loans and Allowance for Loan Losses - Activity of Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Receivables [Abstract]
Balance, beginning of period	$ 35,732	$ 36,093	$ 34,408	$ 34,805	$ 34,805
Charged off loans	(1,559)	(968)	(4,206)	(3,723)	(4,950)
Recoveries on loans previously charged off	539	447	1,660	1,540	2,403
Provision for loan losses	1,425	2,475	4,275	5,425	2,150
Balance, end of period	$ 36,137	$ 38,047	$ 36,137	$ 38,047	$ 34,408

Loans Held for Sale, Loans an_6

Loans Held for Sale, Loans and Allowance for Loan Losses - Loan Balances and Related Allowance for Loan Losses, by Portfolio Type (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Allowance for loan losses:
Balance, beginning of period	$ 35,732	$ 36,093	$ 34,408	$ 34,805	$ 34,805
Charge-offs	(1,559)	(968)	(4,206)	(3,723)	(4,950)
Recoveries	539	447	1,660	1,540	2,403
Provision	1,425	2,475	4,275	5,425	2,150
Balance, end of period	36,137	38,047	36,137	38,047	34,408
Allowance balance at end of period related to:
Loans individually evaluated for impairment	4,464	4,602	4,464	4,602	4,501
Loans collectively evaluated for impairment	31,673	33,445	31,673	33,445	29,907
Balance, end of period	36,137	38,047	36,137	38,047	34,408
Loan balances at end of period:
Loans individually evaluated for impairment	51,553	65,172	51,553	65,172	51,783
Loans collectively evaluated for impairment	1,294,354	1,305,739	1,294,354	1,305,739	1,269,538
Ending balance	1,345,907	1,370,911	1,345,907	1,370,911	1,321,321
Commercial [Member]
Allowance for loan losses:
Balance, beginning of period			22,860	21,213	21,213
Charge-offs			(716)	(77)	(115)
Recoveries			158	173	578
Provision			2,323	1,992	1,184
Balance, end of period	24,625	23,301	24,625	23,301	22,860
Allowance balance at end of period related to:
Loans individually evaluated for impairment	3,510	3,504	3,510	3,504	3,510
Loans collectively evaluated for impairment	21,115	19,797	21,115	19,797	19,350
Balance, end of period	24,625	23,301	24,625	23,301	22,860
Loan balances at end of period:
Loans individually evaluated for impairment	11,854	61,043	11,854	61,043	48,459
Loans collectively evaluated for impairment	1,016,595	1,000,889	1,016,595	1,000,889	970,825
Ending balance	1,028,449	1,061,932	1,028,449	1,061,932	1,019,284
Residential Mortgage And Home Equity [Member]
Allowance for loan losses:
Balance, beginning of period			2,304	1,990	1,990
Charge-offs				(98)	(99)
Recoveries			2		1
Provision			(26)	453	412
Balance, end of period	2,280	2,345	2,280	2,345	2,304
Allowance balance at end of period related to:
Loans individually evaluated for impairment	34	50	34	50	50
Loans collectively evaluated for impairment	2,246	2,295	2,246	2,295	2,254
Balance, end of period	2,280	2,345	2,280	2,345	2,304
Loan balances at end of period:
Loans individually evaluated for impairment	38,577	2,922	38,577	2,922	2,265
Loans collectively evaluated for impairment	109,349	132,150	109,349	132,150	135,343
Ending balance	147,926	135,072	147,926	135,072	137,608
Consumer [Member]
Allowance for loan losses:
Balance, beginning of period			9,244	11,602	11,602
Charge-offs			(3,490)	(3,548)	(4,736)
Recoveries			1,500	1,367	1,824
Provision			1,978	2,980	554
Balance, end of period	9,232	12,401	9,232	12,401	9,244
Allowance balance at end of period related to:
Loans individually evaluated for impairment	920	1,048	920	1,048	941
Loans collectively evaluated for impairment	8,312	11,353	8,312	11,353	8,303
Balance, end of period	9,232	12,401	9,232	12,401	9,244
Loan balances at end of period:
Loans individually evaluated for impairment	1,122	1,207	1,122	1,207	1,059
Loans collectively evaluated for impairment	168,410	172,700	168,410	172,700	163,370
Ending balance	$ 169,532	$ 173,907	$ 169,532	$ 173,907	$ 164,429

Loans Held for Sale, Loans an_7

Loans Held for Sale, Loans and Allowance for Loan Losses - Summary of Delinquency Status of Loans (Detail) - USD ($) $ in Thousands		Sep. 30, 2022	Dec. 31, 2021	Sep. 30, 2021
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		$ 39,425	$ 23,461
Total Loans Outstanding		1,345,907	1,321,321	$ 1,370,911
Automobile [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		363	610
Total Loans Outstanding		18,189	18,220
Residential Mortgage Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		4,021	3,774
Total Loans Outstanding		145,380	135,377
Home Equity [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Loans Outstanding		2,546	2,232
Commercial & Industrial [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		21,335	7,702
Total Loans Outstanding		247,011	295,835
Commercial Mortgage [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		10,387	7,379
Total Loans Outstanding		772,433	699,269
Commercial Construction Loan [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Loans Outstanding		8,443	23,588
Commercial Agriculture [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Loans Outstanding		562	592
Other Consumer Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	[1]	3,319	3,996
Total Loans Outstanding	[1]	151,343	146,208
Commercial [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		31,722	15,081
Total Loans Outstanding		1,028,449	1,019,284	$ 1,061,932
Consumer Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		7,703	8,380
Total Loans Outstanding		317,458	302,037
30-59 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		12,313	7,234
30-59 Days Past Due [Member] | Automobile [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		198	407
30-59 Days Past Due [Member] | Residential Mortgage Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		2,328	2,194
30-59 Days Past Due [Member] | Commercial & Industrial [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		2,610	56
30-59 Days Past Due [Member] | Commercial Mortgage [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		5,756	2,540
30-59 Days Past Due [Member] | Other Consumer Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	[1]	1,421	2,037
30-59 Days Past Due [Member] | Commercial [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		8,366	2,596
30-59 Days Past Due [Member] | Consumer Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		3,947	4,638
60-89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		14,666	2,841
60-89 Days Past Due [Member] | Automobile [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		92	162
60-89 Days Past Due [Member] | Residential Mortgage Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		1,246	1,236
60-89 Days Past Due [Member] | Commercial & Industrial [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		12,176	202
60-89 Days Past Due [Member] | Commercial Mortgage [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		188	217
60-89 Days Past Due [Member] | Other Consumer Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	[1]	964	1,024
60-89 Days Past Due [Member] | Commercial [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		12,364	419
60-89 Days Past Due [Member] | Consumer Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		2,302	2,422
90 Days and Greater Non-Accrual [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		11,391	12,296
90 Days and Greater Non-Accrual [Member] | Residential Mortgage Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		443	267
90 Days and Greater Non-Accrual [Member] | Commercial & Industrial [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		6,549	7,338
90 Days and Greater Non-Accrual [Member] | Commercial Mortgage [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		4,293	4,622
90 Days and Greater Non-Accrual [Member] | Other Consumer Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	[1]	106	69
90 Days and Greater Non-Accrual [Member] | Commercial [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		10,842	11,960
90 Days and Greater Non-Accrual [Member] | Consumer Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		549	336
90 Days and Greater Still Accruing [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		1,055	1,090
90 Days and Greater Still Accruing [Member] | Automobile [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		73	41
90 Days and Greater Still Accruing [Member] | Residential Mortgage Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		4	77
90 Days and Greater Still Accruing [Member] | Commercial & Industrial [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due			106
90 Days and Greater Still Accruing [Member] | Commercial Mortgage [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		150
90 Days and Greater Still Accruing [Member] | Other Consumer Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	[1]	828	866
90 Days and Greater Still Accruing [Member] | Commercial [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		150	106
90 Days and Greater Still Accruing [Member] | Consumer Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		905	984
Current [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		1,306,482	1,297,860
Current [Member] | Automobile [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		17,826	17,610
Current [Member] | Residential Mortgage Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		141,359	131,603
Current [Member] | Home Equity [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		2,546	2,232
Current [Member] | Commercial & Industrial [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		225,676	288,133
Current [Member] | Commercial Mortgage [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		762,046	691,890
Current [Member] | Commercial Construction Loan [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		8,443	23,588
Current [Member] | Commercial Agriculture [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		562	592
Current [Member] | Other Consumer Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	[1]	148,024	142,212
Current [Member] | Commercial [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		996,727	1,004,203
Current [Member] | Consumer Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		$ 309,755	$ 293,657
[1]Comprised of other revolving credit, installment loans, and overdrafts.

Loans Held for Sale, Loans an_8

Loans Held for Sale, Loans and Allowance for Loan Losses - Loans on Non-Accrual Status, by Portfolio (Detail) - USD ($) $ in Thousands		Sep. 30, 2022	Dec. 31, 2021
Financing Receivable Recorded Investment Past Due [Line Items]
Non-accrual loans		$ 16,029	$ 17,570
Residential Mortgage Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Non-accrual loans		2,814	1,660
Commercial & Industrial [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Non-accrual loans		7,101	7,610
Commercial Mortgage [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Non-accrual loans		5,956	8,148
Other Consumer Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Non-accrual loans	[1]	158	152
Commercial [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Non-accrual loans		13,057	15,758
Consumer Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Non-accrual loans		$ 2,972	$ 1,812
[1]Comprised of other revolving credit, installment loans, and overdrafts.

Loans Held for Sale, Loans an_9

Loans Held for Sale, Loans and Allowance for Loan Losses - Summary of Loans by Portfolio Type and Internal Credit Quality Ratings (Detail) - USD ($) $ in Thousands		Sep. 30, 2022	Dec. 31, 2021	Sep. 30, 2021
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		$ 1,345,907	$ 1,321,321	$ 1,370,911
Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		1,252,712	1,232,092
Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		41,892	20,811
Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		42,540	57,921
Formula Classified [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		1,821	2,645
Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		6,942	7,852
Automobile [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		18,189	18,220
Automobile [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		18,116	18,179
Automobile [Member] | Formula Classified [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		73	41
Residential Mortgage Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		145,380	135,377
Residential Mortgage Loans [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		142,103	133,176
Residential Mortgage Loans [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		2,515	613
Residential Mortgage Loans [Member] | Formula Classified [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		762	1,588
Home Equity [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		2,546	2,232
Home Equity [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		2,546	2,232
Commercial & Industrial [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		247,011	295,835
Commercial & Industrial [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		213,369	266,300
Commercial & Industrial [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		1,081	9,760
Commercial & Industrial [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		26,261	12,645
Commercial & Industrial [Member] | Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		6,300	7,130
Commercial Mortgage [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		772,433	699,269
Commercial Mortgage [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		717,216	642,835
Commercial Mortgage [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		40,811	11,051
Commercial Mortgage [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		13,764	44,661
Commercial Mortgage [Member] | Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		642	722
Commercial Construction Loan [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		8,443	23,588
Commercial Construction Loan [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		8,443	23,588
Commercial Agriculture [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		562	592
Commercial Agriculture [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		562	592
Other Consumer Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount	[1]	151,343	146,208
Other Consumer Loans [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		150,357	145,190
Other Consumer Loans [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount			2
Other Consumer Loans [Member] | Formula Classified [Member]
Financing Receivable Recorded Investment [Line Items]
Gross loans, total amount		$ 986	$ 1,016
[1]Comprised of other revolving credit, installment loans, and overdrafts.

Loans Held for Sale, Loans a_10

Loans Held for Sale, Loans and Allowance for Loan Losses - Non-Accrual Loans and Restructured Loans (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Restructured loans:
Non-accruing restructured loans	$ 4,328	$ 6,083
Accruing restructured loans	33,584	32,595
Total restructured loans	37,912	38,678
Other impaired loans	13,641	13,105
Total impaired loans	51,553	51,783
Impaired loans less than 90 days delinquent and included in total impaired loans	$ 39,107	$ 38,398

Loans Held for Sale, Loans a_11

Loans Held for Sale, Loans and Allowance for Loan Losses - Information Related to Impaired Loans (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable Impaired [Line Items]
Total impaired loans with no related allowance, Recorded Investment	$ 49,409	$ 48,699
Total impaired loans with no related allowance, Unpaid Principal Balance	50,099	48,946
Total impaired loans with no related allowance, Average Recorded Investment	48,786	114,493
Total impaired loans with no related allowance, Interest Income Recognized	193	205
Total impaired loans with a related allowance recorded, Recorded Investment	2,144	3,084
Total impaired loans with a related allowance recorded, Unpaid Principal Balance	2,169	3,109
Total impaired loans with a related allowance recorded, Average Recorded Investment	2,470	3,394
Total impaired loans with a related allowance recorded, Interest Income Recognized	12	12
Automobile [Member]
Financing Receivable Impaired [Line Items]
Total impaired loans with a related allowance recorded, Recorded Investment	73	41
Total impaired loans with a related allowance recorded, Unpaid Principal Balance	73	41
Total impaired loans with a related allowance recorded, Average Recorded Investment	72	29
Total impaired loans with a related allowance recorded, Interest Income Recognized	1	1
Residential Mortgage Loans [Member]
Financing Receivable Impaired [Line Items]
Total impaired loans with no related allowance, Recorded Investment	2,515	612
Total impaired loans with no related allowance, Unpaid Principal Balance	2,515	612
Total impaired loans with no related allowance, Average Recorded Investment	1,601	221
Total impaired loans with no related allowance, Interest Income Recognized	10
Total impaired loans with a related allowance recorded, Recorded Investment	821	1,653
Total impaired loans with a related allowance recorded, Unpaid Principal Balance	831	1,663
Total impaired loans with a related allowance recorded, Average Recorded Investment	964	1,921
Total impaired loans with a related allowance recorded, Interest Income Recognized		1
Commercial & Industrial [Member]
Financing Receivable Impaired [Line Items]
Total impaired loans with no related allowance, Recorded Investment	11,820	11,150
Total impaired loans with no related allowance, Unpaid Principal Balance	11,943	11,150
Total impaired loans with no related allowance, Average Recorded Investment	11,529	75,812
Total impaired loans with no related allowance, Interest Income Recognized	34	56
Total impaired loans with a related allowance recorded, Recorded Investment	96	262
Total impaired loans with a related allowance recorded, Unpaid Principal Balance	96	262
Total impaired loans with a related allowance recorded, Average Recorded Investment	230	116
Total impaired loans with a related allowance recorded, Interest Income Recognized		2
Commercial Mortgage [Member]
Financing Receivable Impaired [Line Items]
Total impaired loans with no related allowance, Recorded Investment	35,074	36,935
Total impaired loans with no related allowance, Unpaid Principal Balance	35,641	37,182
Total impaired loans with no related allowance, Average Recorded Investment	35,656	38,456
Total impaired loans with no related allowance, Interest Income Recognized	149	149
Total impaired loans with a related allowance recorded, Recorded Investment	168	112
Total impaired loans with a related allowance recorded, Unpaid Principal Balance	183	127
Total impaired loans with a related allowance recorded, Average Recorded Investment	151	75
Other Consumer Loans [Member]
Financing Receivable Impaired [Line Items]
Total impaired loans with no related allowance, Recorded Investment		2
Total impaired loans with no related allowance, Unpaid Principal Balance		2
Total impaired loans with no related allowance, Average Recorded Investment		4
Total impaired loans with a related allowance recorded, Recorded Investment	986	1,016
Total impaired loans with a related allowance recorded, Unpaid Principal Balance	986	1,016
Total impaired loans with a related allowance recorded, Average Recorded Investment	1,053	1,253
Total impaired loans with a related allowance recorded, Interest Income Recognized	$ 11	$ 8

Loans Held for Sale, Loans a_12

Loans Held for Sale, Loans and Allowance for Loan Losses - Troubled Debt Restructurings (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($) SecurityLoan	Dec. 31, 2021 USD ($)
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	16
Pre-Modification Outstanding Recorded Investment	$ 40,763
Post-Modification Outstanding Recorded Investment	40,763
Outstanding Balance	$ 37,912	$ 38,678
Performing [Member]
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	9
Pre-Modification Outstanding Recorded Investment	$ 34,633
Post-Modification Outstanding Recorded Investment	34,633
Outstanding Balance	$ 33,584	32,595
Performing [Member] | Commercial & Industrial [Member]
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	8
Pre-Modification Outstanding Recorded Investment	$ 5,734
Post-Modification Outstanding Recorded Investment	5,734
Outstanding Balance	$ 4,685	3,696
Performing [Member] | Commercial Mortgage [Member]
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	1
Pre-Modification Outstanding Recorded Investment	$ 28,899
Post-Modification Outstanding Recorded Investment	28,899
Outstanding Balance	$ 28,899	28,899
Nonperforming [Member]
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	7
Pre-Modification Outstanding Recorded Investment	$ 6,130
Post-Modification Outstanding Recorded Investment	6,130
Outstanding Balance	$ 4,328	6,083
Nonperforming [Member] | Commercial & Industrial [Member]
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	1
Pre-Modification Outstanding Recorded Investment	$ 176
Post-Modification Outstanding Recorded Investment	176
Outstanding Balance	$ 67	142
Nonperforming [Member] | Commercial Mortgage [Member]
Financing Receivable Modifications [Line Items]
Number of Loans | SecurityLoan	6
Pre-Modification Outstanding Recorded Investment	$ 5,954
Post-Modification Outstanding Recorded Investment	5,954
Outstanding Balance	$ 4,261	$ 5,941

Regulatory Capital Requiremen_3

Regulatory Capital Requirements - Summary of Company's Actual Capital Amounts and Ratios (Detail) $ in Thousands	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Banking Regulation [Abstract]
Total Capital (to Risk Weighted Assets), Actual, Amount	$ 232,755	$ 222,493
Tier 1 Capital (to Risk Weighted Assets), Actual, Amount	178,884	168,623
Tier 1 Capital (to Average Assets), Actual, Amount	178,884	168,623
Common Equity Tier 1 Capital (to Risk Weighted Assets), Actual, Amount	$ 169,102	$ 158,840
Total Capital (to Risk Weighted Assets), Actual, Ratio	0.15057	0.15161
Tier 1 Capital (to Risk Weighted Assets), Actual, Ratio	0.11572	0.11490
Tier 1 Capital (to Average Assets), Actual, Ratio	0.06668	0.05792
Common Equity Tier 1 Capital (to Risk Weighted Assets), Actual, Ratio	0.10939	0.10824
Total Capital (to Risk Weighted Assets), For Capital Adequacy Purposes, Amount	$ 123,664	$ 117,403
Tier 1 Capital (to Risk Weighted Assets), For Capital Adequacy Purposes, Amount	92,748	88,052
Tier 1 Capital (to Average Assets), For Capital Adequacy Purposes, Amount	107,301	116,461
Common Equity Tier 1 Capital (to Risk Weighted Assets), For Capital Adequacy Purposes, Amount	$ 69,561	$ 66,039
Total Capital (to Risk Weighted Assets), For Capital Adequacy Purposes, Ratio	0.08000	0.08000
Tier 1 Capital (to Risk Weighted Assets), For Capital Adequacy Purposes, Ratio	0.06000	0.06000
Tier 1 Capital (to Average Assets), For Capital Adequacy Purposes, Ratio	0.04000	0.04000
Common Equity Tier 1 Capital (to Risk Weighted Assets), For Capital Adequacy Purposes, Ratio	4.50%	4.50%
Total Capital (to Risk Weighted Assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 154,580	$ 146,753
Tier 1 Capital (to Risk Weighted Assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	123,664	117,403
Tier 1 Capital (to Average Assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	134,127	145,577
Common Equity Tier 1 Capital (to Risk Weighted Assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 100,477	$ 95,390
Total Capital (to Risk Weighted Assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.10000	0.10000
Tier 1 Capital (to Risk Weighted Assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.08000	0.08000
Tier 1 Capital (to Average Assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.05000	0.05000
Common Equity Tier 1 Capital (to Risk Weighted Assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	6.50%	6.50%

Off-Balance-Sheet Activities -

Off-Balance-Sheet Activities - Summary of Financial Instruments with Off-Balance-Sheet Risk (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Commitments to Extend Credit [Member]
Loss Contingencies [Line Items]
Financial Instrument with off-balance-sheet risk	$ 167,117	$ 162,569
Letters of Credit [Member]
Loss Contingencies [Line Items]
Financial Instrument with off-balance-sheet risk	52,297	45,605
Letters of Credit [Member] | Standby Letters of Credit [Member]
Loss Contingencies [Line Items]
Financial Instrument with off-balance-sheet risk	50,263	43,239
Letters of Credit [Member] | Commercial Letters Of Credit [Member]
Loss Contingencies [Line Items]
Financial Instrument with off-balance-sheet risk	$ 2,034	$ 2,366

Off-Balance-Sheet Activities _2

Off-Balance-Sheet Activities - Additional Information (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($)
Fair Value Disclosures [Abstract]
Letters of credit expiration date maximum	1 year
Maximum undiscounted future payments	$ 52,300
Guarantee maturity maximum	1 year
Reserve liabilities associated with guarantees	$ 53

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Valuation allowance	$ 0	$ 0
Total deferred tax asset, net	$ 32,300,000	$ 14,000,000
Guam income tax statutory rate	21%

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Financial Assets Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	$ 499,235	$ 499,366
Mortgage servicing rights at their fair value	1,600	1,600
U.S. Government Agency Pool Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	64,521	20,861
U.S. Government Agency or GSE Residential Mortgage-Backed Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	341,895	367,543
Fair Value on Recurring Basis [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	499,235	499,366
Mortgage servicing rights at their fair value	1,640	1,581
Total fair value	500,875	500,947
Fair Value on Recurring Basis [Member] | U.S. Government Agency and Sponsored Enterprise (GSE) Debt Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	92,819	110,962
Fair Value on Recurring Basis [Member] | U.S. Government Agency Pool Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	64,521	20,861
Fair Value on Recurring Basis [Member] | U.S. Government Agency or GSE Residential Mortgage-Backed Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	341,895	367,543
Fair Value on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	499,235	499,366
Total fair value	499,235	499,366
Fair Value on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Government Agency and Sponsored Enterprise (GSE) Debt Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	92,819	110,962
Fair Value on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Government Agency Pool Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	64,521	20,861
Fair Value on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Government Agency or GSE Residential Mortgage-Backed Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	341,895	367,543
Fair Value on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Mortgage servicing rights at their fair value	1,640	1,581
Total fair value	$ 1,640	$ 1,581

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Transfers in or out of the Bank's Level 3 financial instruments	$ 0	$ 0
Nonfinancial assets or liabilities for which a nonrecurring change in fair value	$ 0	0
Number of days to maturity federal funds purchased and FHLB advances to be treated as short-term borrowings	90 days
Short-term borrowings outstanding	$ 0	0
Long-term borrowings outstanding	$ 0	0
Minimum [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of FHLB advances maturing after ninety days	90 days
Fair Value on Recurring Basis [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liabilities measured at fair value on a recurring basis	$ 0	$ 0

Fair Value Measurements - Asset

Fair Value Measurements - Assets Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Beginning balance	$ 1,581	$ 1,683
Realized and unrealized net losses:
Included in net income	59	(102)
Ending balance	$ 1,640	$ 1,581

Fair Value Measurements - Sum_2

Fair Value Measurements - Summary of Valuation Techniques and Unobservable Inputs (Detail) $ in Thousands	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Mortgage Servicing Rights, Estimated Fair Value	$ 1,600	$ 1,600
Fair Value on Recurring Basis [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Mortgage Servicing Rights, Estimated Fair Value	1,640	1,581
Fair Value on Recurring Basis [Member] | Discount Rate [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Mortgage Servicing Rights, Estimated Fair Value	$ 1,640	$ 1,581
Mortgage Servicing Rights, Valuation Technique [Extensible List]	us-gaap:ValuationTechniqueDiscountedCashFlowMember	us-gaap:ValuationTechniqueDiscountedCashFlowMember
Fair Value on Recurring Basis [Member] | Discount Rate [Member] | Minimum [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Mortgage Servicing Rights, Range of Inputs	0.0602	0.0602
Fair Value on Recurring Basis [Member] | Discount Rate [Member] | Maximum [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Mortgage Servicing Rights, Range of Inputs	0.0793	0.0793
Fair Value on Recurring Basis [Member] | Discount Rate [Member] | Weighted Average [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Mortgage Servicing Rights, Range of Inputs	0.0720	0.0720
Fair Value on Recurring Basis [Member] | Weighted Average Prepayment Rate [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Mortgage Servicing Rights, Range of Inputs	1	1.25

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value of Other Financial Instruments (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Financial assets:
Investment securities held-to-maturity	$ 240,329	$ 310,372
Carrying Amount [Member]
Financial assets:
Cash and cash equivalents	265,013	557,403
Restricted cash	150	150
Federal Home Loan Bank stock	3,318	2,814
Investment securities held-to-maturity	317,593	312,294
Loans, net	1,306,888	1,283,690
Total fair value	1,892,962	2,156,351
Financial liabilities:
Deposits	2,351,149	2,533,231
Total	2,351,149	2,533,231
Fair Value on Nonrecurring Basis [Member] | Estimated Fair Value [Member] | Level 1 [Member]
Financial assets:
Cash and cash equivalents	265,013	557,403
Restricted cash	150	150
Total fair value	265,163	557,553
Fair Value on Nonrecurring Basis [Member] | Estimated Fair Value [Member] | Level 2 [Member]
Financial assets:
Federal Home Loan Bank stock	3,318	2,814
Investment securities held-to-maturity	240,329	310,372
Total fair value	243,647	313,186
Fair Value on Nonrecurring Basis [Member] | Estimated Fair Value [Member] | Level 3 [Member]
Financial assets:
Loans, net	1,353,473	1,330,529
Total fair value	1,353,473	1,330,529
Financial liabilities:
Deposits	2,352,752	2,527,806
Total	$ 2,352,752	$ 2,527,806

Comprehensive Income (Loss) - C

Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) Included in Stockholder's Equity (Detail) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Comprehensive Income Net Of Tax [Abstract]
Net unrealized (loss) gain on available-for-sale securities	$ (86,089)		$ (5,857)
Amounts reclassified from AOCI for (gain) on sale of investment securities available-for-sale included in net income		$ (272)	(272)
Tax effect	19,384		1,380
Unrealized holding (loss) gain on available-for-sale securities, net of tax	(66,705)		(4,749)
Gross unrealized holding loss on held-to-maturity securities	(11,972)		(15,864)
Amortization of unrealized holding loss on held-to-maturity during the period	645		3,892
Unrealized holding loss on held-to-maturity securities	(11,327)		(11,972)
Accumulated other comprehensive (loss) income	$ (78,032)		$ (16,721)

Leases - Additional Information

Leases - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Lease [Line Items]
Operating lease option to extend description			Most leases include one or more options to renew, with renewal terms that can extend the lease term from one to 50 years or more.
Operating lease option to extend			true
Operating lease payments			$ 2,100	$ 2,700
Minimum future rents to be received under non-cancelable operating sublease agreements, 2022	$ 11		11
Minimum future rents to be received under non-cancelable operating sublease agreements, 2023	29		29
Operating lease costs	841	$ 911	2,400	2,800
Variable lease cost	$ 841	911	$ 2,400	2,800
Minimum [Member]
Lease [Line Items]
Operating lease option to extend	1 year		1 year
Original operating lease term	1 year		1 year
Maximum [Member]
Lease [Line Items]
Operating lease option to extend	50 years		50 years
Original operating lease term	3 years		3 years
Operating lease renewal term	12 years		12 years
Bank Facility Lease
Lease [Line Items]
Operating lease payments	$ 129	$ 97	$ 291	$ 302

Leases - Summary of Lease Relat

Leases - Summary of Lease Related Assets and Liabilities Recorded in Unaudited Condensed Consolidated Statements of Financial Condition (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease right-of-use assets	$ 27,846	$ 23,379
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Total lease assets	$ 27,846	$ 23,379
Operating	$ 1,932	$ 1,926
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities
Operating	$ 26,905	$ 22,186
Total lease liabilities	$ 28,837	$ 24,112

Leases - Schedule of Maturities

Leases - Schedule of Maturities of Lease Liabilities Under Operating Leases (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Operating Leases
Operating Leases, 2022	$ 767
Operating Leases, 2023	2,893
Operating Leases, 2024	2,880
Operating Leases, 2025	2,824
Operating Leases, 2026	2,614
Operating Leases, 2027	2,282
Operating Leases, After 2027	39,642
Operating Leases, Total lease payments	53,902
Operating Leases, Less: Interest	25,065
Operating Leases, Present value of lease liabilities	$ 28,837
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities
Total
Lease liability, 2022	$ 767
Lease liability, 2023	2,893
Lease liability, 2024	2,880
Lease liability, 2025	2,824
Lease liability, 2026	2,614
Lease liability, 2027	2,282
Lease liability, After 2027	39,642
Lease liability, Total lease payments	53,902
Lease liability, Less: Interest	25,065
Lease liability, Present value of lease liabilities	$ 28,837	$ 24,112

Leases - Schedule of Maturiti_2

Leases - Schedule of Maturities of Lease Liabilities Under Operating Leases (Parenthetical) (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease payments related to option to extend lease	$ 18,900
Current portion of operating lease liability	$ 1,932	$ 1,926

Leases - Summary of Weighted-Av

Leases - Summary of Weighted-Average Lease Term and Discount Rate (Detail)	Sep. 30, 2022	Dec. 31, 2021
Leases [Abstract]
Operating leases, weighted-average remaining lease term (years)	25 years 9 months 18 days	25 years 7 months 6 days
Operating leases, weighted-average discount rate	4.03%	4.15%

Subordinated Debt - Additional

Subordinated Debt - Additional Information (Detail) - USD ($)			9 Months Ended
	Jun. 29, 2021	Jun. 27, 2019	Sep. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Notes, aggregate principal amount			$ 34,451,000	$ 34,400,000
2029 Notes [Member] | Subordinated Notes [Member]
Debt Instrument [Line Items]
Notes, aggregate principal amount		$ 15,000,000
Notes, interest rate		6.35%
Notes, maturity date		Jun. 30, 2029
Notes, term		10 years
Notes, interest payment terms			The Company is required to pay interest only semi-annually during the fixed period, and quarterly during the floating rate period.
2029 Notes [Member] | Subordinated Notes [Member] | Three-month LIBOR [Member]
Debt Instrument [Line Items]
Notes, basis points payable		4.66%
2031 Notes [Member] | Subordinated Notes [Member]
Debt Instrument [Line Items]
Notes, aggregate principal amount	$ 20,000,000
Notes, interest rate	4.75%
Notes, maturity date	Jul. 01, 2031
Notes, term	10 years
Notes, interest payment terms			The Company is required to pay interest semi-annually during the fixed period, and quarterly during the floating rate period.
2031 Notes [Member] | Subordinated Notes [Member] | Three-month SOFR [Member]
Debt Instrument [Line Items]
Notes, basis points payable	4.13%

Subsequent Events - Additional

Subsequent Events - Additional Information (Details)		1 Months Ended
	Oct. 31, 2022	Apr. 30, 2022
Subsequent Event [Line Items]
Reverse stock split ratio		0.002
Subsequent Events [Member]
Subsequent Event [Line Items]
Reverse stock split ratio	0.002
Reverse stock split effective date	Nov. 02, 2022