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Note 3 - Debt Securities (Tables)

9 Months Ended

Sep. 30, 2022

Notes Tables

Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]

		*September 30, 2022*
		*Amortized*				*Unrealized*				*Unrealized*				*Fair*
		*Cost*				*Gains*				*Losses*				*Value*
(Amounts in thousands)
U.S. Agency securities		$	1,500			$	-			$	(12	)		$	1,488
U.S. Treasury Notes			160,935				-				(4,475	)			156,460
Municipal securities			23,523				9				(471	)			23,061
Corporate notes			37,056				-				(2,537	)			34,519
Agency mortgage-backed securities			98,389				1				(14,298	)			84,092
Total		$	321,403			$	10			$	(21,793	)		$	299,620

		*December 31, 2021*
		*Amortized*				*Unrealized*				*Unrealized*				*Fair*
		*Cost*				*Gains*				*Losses*				*Value*
(Amounts in thousands)
U.S. Agency securities		$	469			$	—			$	(3	)		$	466
Municipal securities			28,596				198				—				28,794
Corporate notes			9,935				—				(16	)			9,919
Agency mortgage-backed securities			37,273				513				(673	)			37,113
Total		$	76,273			$	711			$	(692	)		$	76,292

Investments Classified by Contractual Maturity Date [Table Text Block]

		*September 30, 2022*
		*Amortized*
(Amounts in thousands)		*Cost*				*Fair Value*
Available-for-sale debt securities
Due within one year		$	43,628			$	43,323
Due after one year but within five years			174,943				167,932
Due after five years but within ten years			4,443				4,273
			223,014				215,528
Agency mortgage-backed securities			98,389				84,092
Total debt securities available for sale		$	321,403			$	299,620

Schedule of Unrealized Loss on Investments [Table Text Block]

		*September 30, 2022*
		*Less than 12 Months*								*12 Months or Longer*								*Total*
		*Fair*				*Unrealized*				*Fair*				*Unrealized*				*Fair*				*Unrealized*
		*Value*				*Losses*				*Value*				*Losses*				*Value*				*Losses*
(Amounts in thousands)
U.S. Agency securities		$	1,488			$	(12	)		$	-			$	-			$	1,488			$	(12	)
U.S. Treasury Notes			156,460				(4,475	)			-				-				156,460				(4,475	)
Municipal securities			18,872				(471	)			-				-				18,872				(471	)
Corporate notes			34,519				(2,537	)			-				-				34,519				(2,537	)
Agency mortgage-backed securities			69,521				(10,452	)			14,515				(3,846	)			84,036				(14,298	)
Total		$	280,860			$	(17,947	)		$	14,515			$	(3,846	)		$	295,375			$	(21,793	)

		*December 31, 2021*
		*Less than 12 Months*								*12 Months or Longer*								*Total*
		*Fair*				*Unrealized*				*Fair*				*Unrealized*				*Fair*				*Unrealized*
		*Value*				*Losses*				*Value*				*Losses*				*Value*				*Losses*
(Amounts in thousands)
U.S. Agency securities		$	—			$	—			$	459			$	(3	)		$	459			$	(3	)
Corporate notes			9,919				(16	)			—				—				9,919				(16	)
Agency mortgage-backed securities			14,092				(253	)			8,384				(420	)			22,476				(673	)
Total		$	24,011			$	(269	)		$	8,843			$	(423	)		$	32,854			$	(692	)