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Note 7 - Debt Securities

6 Months Ended

Jun. 30, 2020

Notes to Financial Statements

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

7.	Debt Securities

The amortized cost of securities available-for-sale and their approximate fair values as of June 30, 2020 and December 31, 2019 are summarized below (in thousands):

2020:						Gross				Gross
		Amortized				Unrealized				Unrealized				Estimated
		Cost				Gains				Losses				Fair Value

U.S. government treasuries		$	8,893			$	387			$	-			$	9,280
U.S. government agencies			99,091				5,203				(6	)			104,288
U.S. government mortgage-backed securities			104,063				3,114				(27	)			107,150
State and political subdivisions			211,593				5,322				(118	)			216,797
Corporate bonds			71,319				4,793				(11	)			76,101
		$	494,959			$	18,819			$	(162	)		$	513,616

2019:						Gross				Gross
		Amortized				Unrealized				Unrealized				Estimated
		Cost				Gains				Losses				Fair Value

U.S. government treasuries		$	9,392			$	64			$	(4	)		$	9,452
U.S. government agencies			124,913				1,609				(89	)			126,433
U.S. government mortgage-backed securities			80,295				867				(34	)			81,128
State and political subdivisions			193,745				1,852				(295	)			195,302
Corporate bonds			66,012				1,542				(26	)			67,528
		$	474,357			$	5,934			$	(448	)		$	479,843

The amortized cost and fair value of debt securities available-for-sale as of June 30, 2020, are shown below by expected maturity. Expected maturity will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties (in thousands).

		Amortized				Estimated
		Cost				Fair Value

Due in one year or less		$	48,856			$	49,216
Due after one year through five years			234,542				243,595
Due after five years through ten years			181,220				189,531
Due after ten years			30,341				31,274
Total		$	494,959			$	513,616

Securities with a carrying value of $197.1 million and $180.0 million at June 30, 2020 and December 31, 2019, respectively, were pledged on public deposits, securities sold under agreements to repurchase and for other purposes as required or permitted by law.

The proceeds, gains and losses for securities available-for-sale for the three and six months ended June 30, 2020 and 2019 are summarized below (in thousands):

		Three Months Ended								Six Months Ended
		June 30,								June 30,
		2020				2019				2020				2019
Proceeds from sales of securities available-for-sale		$	2,078			$	5,973			$	5,463			$	5,973
Gross realized gains on securities available-for-sale			44				21				430				21
Gross realized losses on securities available-for-sale			-				(19	)			-				(19	)
Tax provision applicable to net realized gains on securities available-for-sale			11				-				108				-

Gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position are summarized as of June 30, 2020 and December 31, 2019 are as follows (in thousands):

		Less than 12 Months								12 Months or More								Total
2020:		Estimated Fair Value				Unrealized Losses				Estimated Fair Value				Unrealized Losses				Estimated Fair Value				Unrealized Losses

Securities available-for-sale:
U.S. government treasuries		$	-			$	-			$	-			$	-			$	-			$	-
U.S. government agencies			938				(6	)			-				-				938				(6	)
U.S. government mortgage-backed securities			11,784				(25	)			1,712				(2	)			13,496				(27	)
State and political subdivisions			6,697				(114	)			180				(4	)			6,877				(118	)
Corporate bonds			493				(11	)			-				-				493				(11	)
		$	19,912			$	(156	)		$	1,892			$	(6	)		$	21,804			$	(162	)

		Less than 12 Months								12 Months or More								Total
2019:		Fair Value				Unrealized Losses				Fair Value				Unrealized Losses				Fair Value				Unrealized Losses

Securities available-for-sale:
U.S. government treasuries		$	3,023			$	(4	)		$	-			$	-			$	3,023			$	(4	)
U.S. government agencies			23,827				(85	)			2,520				(4	)			26,347				(89	)
U.S. government mortgage-backed securities			14,885				(28	)			1,934				(6	)			16,819				(34	)
State and political subdivisions			17,512				(125	)			5,954				(170	)			23,466				(295	)
Corporate bonds			4,129				(26	)			-				-				4,129				(26	)
		$	63,376			$	(268	)		$	10,408			$	(180	)		$	73,784			$	(448	)

Gross unrealized losses on debt securities totaled $162,000 as of June 30, 2020. These unrealized losses are generally due to changes in interest rates or general market conditions. In analyzing an issuer’s financial condition, management considers whether the securities are issued by the federal government or its agencies, state or political subdivision, or corporations. Management then determines whether downgrades by bond rating agencies have occurred, and reviews industry analysts’ reports. The Company’s procedures for evaluating investments in states, municipalities and political subdivisions include but are not limited to reviewing the offering statement and the most current available financial information, comparing yields to yields of bonds of similar credit quality, confirming capacity to repay, assessing operating and financial performance, evaluating the stability of tax revenues, considering debt profiles and local demographics, and for revenue bonds, assessing the source and strength of revenue structures for municipal authorities. These procedures, as applicable, are utilized for all municipal purchases and are utilized in whole or in part for monitoring the portfolio of municipal holdings. The Company does not utilize third party credit rating agencies as a primary component of determining if the municipal issuer has an adequate capacity to meet the financial commitments under the security for the projected life of the investment, and, therefore, does not compare internal assessments to those of the credit rating agencies. Credit rating downgrades are utilized as an additional indicator of credit weakness and as a reference point for historical default rates. Management concluded that the gross unrealized losses on debt securities were temporary. Due to potential changes in conditions, it is at least reasonably possible that changes in fair values and management’s assessments will occur in the near term and that such changes could materially affect the amounts reported in the Company’s financial statements.