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AFS Securities (Tables)

9 Months Ended

Sep. 30, 2020

Investments, Debt and Equity Securities [Abstract]

Amortized cost and fair value of available-for-sale securities

The amortized cost and fair value of AFS securities, with gross unrealized gains and losses, are as follows at:

			September 30, 2020
			Amortized Cost						Gross Unrealized Gains						Gross Unrealized Losses						Fair Value
States and political subdivisions			$	142,547					$	5,854					$	—					$	148,401
Auction rate money market preferred			3,200						—						6						3,194
Mortgage-backed securities			100,984						3,181						—						104,165
Collateralized mortgage obligations			102,231						5,063						—						107,294
Total			$	348,962					$	14,098					$	6					$	363,054

			December 31, 2019
			Amortized Cost						Gross Unrealized Gains						Gross Unrealized Losses						Fair Value
States and political subdivisions			$	165,005					$	4,747					$	—					$	169,752
Auction rate money market preferred			3,200						—						81						3,119
Mortgage-backed securities			139,831						933						560						140,204
Collateralized mortgage obligations			115,944						1,007						187						116,764
Total			$	423,980					$	6,687					$	828					$	429,839

Amortized cost and fair value of available-for-sale securities by contractual maturity

The amortized cost and fair value of AFS securities by contractual maturity at September 30, 2020 are as follows:

			Maturing																								Securities with Variable Monthly Payments or Noncontractual Maturities
			Due in One Year or Less						After One Year But Within Five Years						After Five Years But Within Ten Years						After Ten Years												Total
States and political subdivisions			$	22,709					$	66,180					$	27,441					$	26,217					$	—					$	142,547
Auction rate money market preferred			—						—						—						—						3,200						3,200
Mortgage-backed securities			—						—						—						—						100,984						100,984
Collateralized mortgage obligations			—						—						—						—						102,231						102,231
Total amortized cost			$	22,709					$	66,180					$	27,441					$	26,217					$	206,415					$	348,962
Fair value			$	22,891					$	68,188					$	29,293					$	28,029					$	214,653					$	363,054

Schedule of Realized Gain (Loss) [Table Text Block]

A summary of the sales activity of AFS securities was as follows for the:

			Three Months Ended September 30												Nine Months Ended September 30
			2020						2019						2020						2019
Proceeds from sales of AFS securities			$	—					$	33,840					$	26,855					$	33,840
Realized gains (losses)			$	—					$	6					$	71					$	6
Applicable income tax expense (benefit)			$	—					$	1					$	15					$	1

Available-for-sale securities with gross unrealized losses

The following information pertains to AFS securities with gross unrealized losses at September 30, 2020 and December 31, 2019, aggregated by investment category and length of time that individual securities have been in a continuous loss position.

			September 30, 2020
			Less Than Twelve Months												Twelve Months or More
			Gross Unrealized Losses						Fair Value						Gross Unrealized Losses						Fair Value						Total Unrealized Losses
Auction rate money market preferred			$	—					$	—					$	6					$	3,194					$	6
Number of securities in an unrealized loss position:									—												2						2

			December 31, 2019
			Less Than Twelve Months												Twelve Months or More
			Gross Unrealized Losses						Fair Value						Gross Unrealized Losses						Fair Value						Total Unrealized Losses
Auction rate money market preferred			$	—					$	—					$	81					$	3,119					$	81
Mortgage-backed securities			3						3,974						557						49,701						560
Collateralized mortgage obligations			43						20,262						144						13,309						187
Total			$	46					$	24,236					$	782					$	66,129					$	828
Number of securities in an unrealized loss position:									9												19						28

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- Definition

Tabular disclosure of fair value of investments in debt and equity securities in an unrealized loss position categorized neither as held-to-maturity nor trading securities.

+ References

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- Definition

Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.

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- Definition

Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.

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- Definition

Tabular disclosure of the proceeds from sales of available-for-sale securities and the gross realized gains and gross realized losses that have been included in earnings as a result of those sales.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27357-111563

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