Consolidated Statements of Income - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Interest income:
Loans	$ 47,043,000	$ 45,318,000
Investment securities	17,918,000	16,211,000
Other investments	4,127,000	1,173,000
Total interest income	69,088,000	62,702,000
Interest expense:
Deposits	19,484,000	4,925,000
Advances from the Federal Home Loan Bank	6,636,000	2,107,000
Securities sold under agreements to repurchase	183,000	183,000
Advances from the Federal Reserve Bank	154,000
Total interest expense	26,457,000	7,215,000
Net interest income	42,631,000	55,487,000
Reversal of provision for credit losses	(3,000)	(576,000)
Reversal of provision for credit losses		(576,000)
Net interest income after reversal of provision for credit losses	42,634,000	56,063,000
Noninterest income:
Service and other fees	1,327,000	1,416,000
Income on bank-owned life insurance	855,000	792,000
Net gain (loss) on sale of loans	10,000	(3,000)
Other	279,000	2,004,000
Total noninterest income	2,471,000	4,209,000
Noninterest expense:
Salaries and employee benefits	20,832,000	22,259,000
Occupancy	6,910,000	6,708,000
Equipment	5,156,000	5,006,000
Federal deposit insurance premiums	982,000	573,000
Other general and administrative expenses	4,388,000	4,252,000
Total noninterest expense	38,268,000	38,798,000
Income before income taxes	6,837,000	21,474,000
Income taxes	1,810,000	5,318,000
Net income	$ 5,027,000	$ 16,156,000
Basic earnings per share (in dollars per share)	$ 0.58	$ 1.81
Diluted earnings per share (in dollars per share)	0.57	1.80
Cash dividends declared per common share (in dollars per share)	$ 0.74	$ 1.02
Basic weighted-average shares outstanding (in shares)	8,636,495	8,865,946
Diluted weighted-average shares outstanding (in shares)	8,684,092	8,920,714
Service and Other Fees
Noninterest income:
Service and other fees	$ 1,327,000	$ 1,416,000