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Investment securities (Tables)

9 Months Ended

Sep. 30, 2022

Investment Securities

Schedule of amortized cost and fair value of investment securities aggregated by investment category


					Gross			Gross
		Amortized			Unrealized			Unrealized			Fair
September 30, 2022		Cost			Gains			Losses			Value
Available-for-sale:
U.S. Treasury securities		$	247,812		$			$	23,476		$	224,336
U.S. government-sponsored enterprises			16,976						625			16,351
State and municipals:
Taxable			69,913			1			13,680			56,234
Tax-exempt			100,078			1			15,493			84,586
Residential mortgage-backed securities:
U.S. government agencies			1,130						39			1,091
U.S. government-sponsored enterprises			100,020						20,312			79,708
Commercial mortgage-backed securities:
U.S. government-sponsored enterprises			12,243						564			11,679
Corporate debt securities			4,000						395			3,605
Total		$	552,172		$	2		$	74,584		$	477,590
Held-to-maturity:
Tax-exempt state and municipals		$	11,247		$			$	1,286		$	9,961
Residential mortgage-backed securities:
U.S. government agencies			17,732						2,679			15,053
U.S. government-sponsored enterprises			63,792						10,294			53,498
Total		$	92,771		$			$	14,259		$	78,512


					Gross			Gross
		Amortized			Unrealized			Unrealized			Fair
December 31, 2021		Cost			Gains			Losses			Value
Available-for-sale:
U.S. Treasury securities		$	193,849		$	107		$	2,382		$	191,574
U.S. government-sponsored enterprises			33,435			343						33,778
State and municipals:
Taxable			69,066			994			1,082			68,978
Tax-exempt			96,412			2,452			614			98,250
Residential mortgage-backed securities:
U.S. government agencies			1,790			53						1,843
U.S. government-sponsored enterprises			109,018			939			2,925			107,032
Commercial mortgage-backed securities:
U.S. government-sponsored enterprises			12,542			406						12,948
Corporate debt securities			3,000						82			2,918
Total		$	519,112		$	5,294		$	7,085		$	517,321
Held-to-maturity:
Tax-exempt state and municipals		$	11,476		$	126		$	56		$	11,546
Residential mortgage-backed securities:
U.S. government agencies			18,802						392			18,410
U.S. government-sponsored enterprises			40,935			3			448			40,490
Total		$	71,213		$	129		$	896		$	70,446

Schedule of fair value and unrealized losses of investment securities in continuous unrealized loss position



				Less Than 12 Months								12 Months or Greater								Total
		Number of								Number of								Number of
		Securities in a		Fair			Unrealized			Securities in a		Fair			Unrealized			Securities in a		Fair			Unrealized
September 30, 2022		Loss Position		Value			Losses			Loss Position		Value			Losses			Loss Position		Value			Losses
U.S. Treasury securities		16		$	83,156		$	5,372		37		$	141,180		$	18,104		53		$	224,336		$	23,476
U.S. government-sponsored enterprises		5			16,351			625										5			16,351			625
State and municipals:
Taxable		32			27,779			4,951		34			26,547			8,729		66			54,326			13,680
Tax-exempt		74			57,580			7,835		58			35,886			8,944		132			93,466			16,779
Residential mortgage-backed securities:
U.S. government agencies		6			1,098			39		3			15,046			2,679		9			16,144			2,718
U.S. government-sponsored enterprises		26			54,953			9,141		16			78,254			21,465		42			133,207			30,606
Commercial mortgage-backed securities:
U.S. government-sponsored enterprises		4			11,679			564										4			11,679			564
Corporate debt securities		1			947			53		5			2,658			342		6			3,605			395
Total		164		$	253,543		$	28,580		153		$	299,571		$	60,263		317		$	553,114		$	88,843


				Less Than 12 Months								12 Months or Greater								Total
		Number of								Number of								Number of
		Securities in a		Fair			Unrealized			Securities in a		Fair			Unrealized			Securities in a		Fair			Unrealized
December 31, 2021		Loss Position		Value			Losses			Loss Position		Value			Losses			Loss Position		Value			Losses
U.S. Treasury securities		42		$	179,974		$	2,382				$			$			42		$	179,974		$	2,382
State and municipals:
Taxable		27			26,827			718		8			8,008			364		35			34,835			1,082
Tax-exempt		61			38,693			357		2			10,319			313		63			49,012			670
Residential mortgage-backed securities:
U.S. government agencies		3			18,398			392										3			18,398			392
U.S. government-sponsored enterprises		13			77,875			1,454		7			48,276			1,919		20			126,151			3,373
Corporate debt securities		4			2,449			51		1			470			31		5			2,919			82
Total		150		$	344,216		$	5,354		18		$	67,073		$	2,627		168		$	411,289		$	7,981

Available-for-Sale Securities

Investment Securities

Schedule of maturity distribution of fair value


		Fair
September 30, 2022		Value
Within one year		$	18,608
After one but within five years			204,991
After five but within ten years			74,710
After ten years			84,516
			382,825
Mortgage-backed and other amortizing securities			94,765
Total		$	477,590

Held-to-maturity Securities.

Investment Securities

Schedule of maturity distribution of fair value


		Amortized			Fair
September 30, 2022		Cost			Value
After five but within ten years		$	8,294		$	7,410
After ten years			2,953			2,551
			11,247			9,961
Mortgage-backed securities			81,524			68,551
Total		$	92,771		$	78,512