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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

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- Definition

Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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- Definition

Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements.

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Loans - Loans (Detail) - USD ($)	Sep. 30, 2022	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020
Loans:
Loans - Gross	$ 2,144,018,000	$ 1,859,157,000
Less: Net deferred loan fees and costs	(1,402,000)	(1,738,000)
Loans after net deferred loan fees and costs	2,142,616,000	1,857,419,000	$ 1,495,562,000
Less: Allowance for loan losses	(19,990,000)	(16,242,000)		$ (13,672,000)
Loans - Net	2,122,626,000	1,841,177,000
Consumer Real Estate [Member]
Loans:
Loans - Gross	416,001,000	395,873,000
Loans after net deferred loan fees and costs	416,044,000	395,805,000	202,370,000
Agricultural Real Estate [Member]
Loans:
Loans - Gross	205,089,000	198,343,000
Loans after net deferred loan fees and costs	204,787,000	198,033,000	179,051,000
Agricultural [Member]
Loans:
Loans - Gross	128,615,000	118,368,000
Loans after net deferred loan fees and costs	128,818,000	118,504,000	105,722,000
Commercial Real Estate [Member]
Loans:
Loans - Gross	1,063,661,000	848,477,000
Loans after net deferred loan fees and costs	1,061,904,000	847,110,000	727,418,000
Commercial and Industrial [Member]
Loans:
Loans - Gross	229,388,000	208,270,000
Loans after net deferred loan fees and costs	229,338,000	208,049,000
Less: Allowance for loan losses	0
Consumer [Member]
Loans:
Loans - Gross	70,602,000	57,737,000
Loans after net deferred loan fees and costs	71,063,000	57,829,000	$ 55,619,000
Other Loan [Member]
Loans:
Loans - Gross	30,662,000	32,089,000
Loans after net deferred loan fees and costs	$ 30,662,000	$ 32,089,000