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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, 2021	Dec. 31, 2020	Sep. 30, 2020	Dec. 31, 2019
Loans:
Loans - Gross	$ 1,497,644,000	$ 1,305,473,000
Less: Net deferred loan fees and costs	(2,082,000)	(2,483,000)
Loans after net deferred loan fees and costs	1,495,562,000	1,302,990,000	$ 1,363,862,000
Less: Allowance for loan losses	(15,698,000)	(13,672,000)		$ (7,228,000)
Loans - Net	1,479,864,000	1,289,318,000
Consumer Real Estate [Member]
Loans:
Loans - Gross	202,454,000	175,588,000
Loans after net deferred loan fees and costs	202,370,000	175,316,000	175,595,000
Agricultural Real Estate [Member]
Loans:
Loans - Gross	179,374,000	189,159,000
Loans after net deferred loan fees and costs	179,051,000	188,826,000	192,577,000
Agricultural [Member]
Loans:
Loans - Gross	105,580,000	94,358,000
Loans after net deferred loan fees and costs	105,722,000	94,490,000	103,476,000
Commercial Real Estate [Member]
Loans:
Loans - Gross	728,852,000	588,825,000
Loans after net deferred loan fees and costs	727,418,000	587,654,000	593,936,000
Commercial and Industrial [Member]
Loans:
Loans - Gross	194,767,000	189,246,000
Loans after net deferred loan fees and costs	194,286,000	188,286,000
Less: Allowance for loan losses	0
Consumer [Member]
Loans:
Loans - Gross	55,521,000	52,540,000
Loans after net deferred loan fees and costs	55,619,000	52,661,000	$ 53,455,000
Other Loan [Member]
Loans:
Loans - Gross	31,096,000	15,757,000
Loans after net deferred loan fees and costs	$ 31,096,000	$ 15,757,000