Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net income	$ 30,021,000	$ 24,008,000	$ 13,035,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion	5,255,000	5,423,000	4,539,000
Provision for loan losses	2,100,000	2,000,000	5,250,000
Deferred income tax expense (benefit)	1,835,000	1,194,000	(400,000)
Stock-based compensation expense	1,271,000	1,096,000	1,077,000
Excess tax benefit from exercise of SSARs	12,000	26,000	0
Proceeds from sale of loans held-for-sale	79,401,000	162,343,000	158,300,000
Originations of loans held-for-sale	(67,476,000)	(186,768,000)	(176,939,000)
Earnings from bank-owned life insurance	(1,290,000)	(1,227,000)	(794,000)
Net gain from sales of loans	(1,623,000)	(4,172,000)	(3,603,000)
Net gain from sales of investment securities	(4,000)	(46,000)	(115,000)
Net gain from sale and write-down of foreclosed assets held-for-sale	(19,000)	(44,000)	(23,000)
Net loss from write-down and disposal of bank premises and equipment	195,000	186,000	142,000
Operating lease payments	93,000	60,000	29,000
Change in:
Accrued interest receivable	(961,000)	(900,000)	(985,000)
Other assets	(924,000)	1,099,000	(710,000)
Accrued interest payable and other liabilities	1,541,000	2,921,000	1,493,000
Net cash provided by operating activities	49,427,000	7,199,000	296,000
Cash flows from investing activities:
Proceeds from sales	1,691,000	44,474,000	123,459,000
Proceeds from maturities, calls and principal pay-downs	40,749,000	54,213,000	68,906,000
Purchases	(42,087,000)	(411,406,000)	(271,504,000)
(Increase) decrease in restricted investments in bank stock	(2,061,000)	792,000	2,149,000
Net (increase) decrease in loans and leases	(116,055,000)	7,134,000	(132,541,000)
Principal portion of lease payments received under direct finance leases	5,733,000	5,262,000	3,551,000
Purchase of life insurance policies	0	0	(11,000,000)
Purchases of bank premises and equipment	(5,514,000)	(2,520,000)	(1,390,000)
Net cash (used in) provided by acquisition	0	(3,746,000)	53,004,000
Proceeds from sale of bank premises and equipment	1,095,000	1,719,000	187,000
Proceeds from sale of foreclosed assets held-for-sale	1,061,000	835,000	936,000
Net cash used in investing activities	(115,388,000)	(303,243,000)	(164,243,000)
Cash flows from financing activities:
Net (decrease) increase in deposits	(2,916,000)	351,903,000	278,342,000
Net increase (decrease) in other borrowings	10,063,000	(12,223,000)	(37,839,000)
Proceeds from Paycheck Protection Program Liquidity Facility (PPPLF)	0	0	152,791,000
Repayment of PPPLF	0	0	(152,791,000)
Repayment of FHLB advances	0	(9,602,000)	(17,627,000)
Repayment of finance lease obligation	(232,000)	(159,000)	(83,000)
Purchase of treasury stock	(1,263,000)	0	0
Proceeds from employee stock purchase plan participants	252,000	270,000	219,000
Repurchase of shares to cover withholdings	(20,000)	0	0
Dividends paid	(7,709,000)	(6,608,000)	(5,378,000)
Cash paid in lieu of fractional shares	0	(6,000)	(4,000)
Net cash (used in) provided by financing activities	(1,825,000)	323,575,000	217,630,000
Net (decrease) increase in cash and cash equivalents	(67,786,000)	27,531,000	53,683,000
Cash and cash equivalents, beginning	96,877,000	69,346,000	15,663,000
Cash and cash equivalents, ending	29,091,000	96,877,000	69,346,000
Supplemental Disclosures of Cash Flow Information
Interest	6,105,000	3,851,000	5,820,000
Income tax	3,050,000	2,650,000	3,250,000
Supplemental Disclosures of Non-cash Investing Activities:
Net change in unrealized gains (losses) on available-for-sale securities	(68,106,000)	(11,105,000)	6,772,000
Transfers of securities from available-for-sale to held-to-maturity	245,536,000	0	0
Unrealized losses on securities transferred from available-for-sale to held-to-maturity	(22,188,000)	0	0
Transfers from loans to foreclosed assets held-for-sale	776,000	481,000	800,000
Transfers from/(to) loans to/(from) loans held-for-sale, net	(17,907,000)	(23,821,000)	6,642,000
Transfers from premises and equipment to other assets held-for-sale	1,184,000	1,495,000	0
Right-of-use asset	141,000	1,519,000	72,000
Lease liability	141,000	1,519,000	72,000
Increase in assets and liabilities:
Securities		49,430,000	123,420,000
Loans		298,860,000	245,283,000
Restricted investments in bank stocks		1,186,000	692,000
Premises and equipment		3,405,000	6,907,000
Investment in bank-owned life insurance		7,233,000	9,230,000
Goodwill	$ 19,628,000	19,628,000
Core deposit intangible asset		597,000	1,973,000
Leased property under finance leases		1,188,000	0
Right-of-use assets		756,000	1,354,000
Other assets		4,127,000	2,680,000
Non-interest-bearing deposits		(100,472,000)	(118,822,000)
Interest-bearing deposits		(208,057,000)	(276,816,000)
Short-term borrowings		(2,224,000)	0
FHLB advances		(4,602,000)	(7,627,000)
Secured borrowings		(20,619,000)	0
Finance lease obligation		(1,188,000)	0
Operating lease liabilities		(756,000)	(1,354,000)
Other liabilities		(2,631,000)	(1,356,000)
Fair value of common shares issued		(35,056,000)	(45,408,000)
Landmark Bancorp Inc. [Member]
Increase in assets and liabilities:
Goodwill		$ 12,575,000
MNB Corporation [Member]
Increase in assets and liabilities:
Goodwill			$ 6,843,000