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Note 2 - Securities - Summary of Amortized Costs and Fair Values of Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Amortized cost, available for sale securities	$ 118,980	$ 120,068
Gross unrealized gains, available for sale securities	4,215	1,254
Gross unrealized losses, available for sale securities	(2)	(339)
Fair value, available for sale securities	123,193	120,983
Amortized cost, held to maturity securities	16,211	17,627
Gross unrealized gains, held to maturity securities	526	99
Gross unrealized losses, held to maturity securities	0	(80)
Debt Securities, Held-to-maturity, Fair Value, Total	16,737	17,646
Amortized cost, total securities	135,191	137,695
Gross unrealized gains, total securities	4,741	1,353
Gross unrealized losses, total securities	(2)	(419)
Total securities	139,930	138,629
US Agency and Mortgage-backed Securities [Member]
Amortized cost, available for sale securities	91,519	94,461
Gross unrealized gains, available for sale securities	3,302	778
Gross unrealized losses, available for sale securities	(1)	(334)
Fair value, available for sale securities	94,820	94,905
Amortized cost, held to maturity securities	11,306	12,528
Gross unrealized gains, held to maturity securities	299	6
Gross unrealized losses, held to maturity securities	0	(80)
Debt Securities, Held-to-maturity, Fair Value, Total	11,605	12,454
Municipal Bonds [Member]
Amortized cost, available for sale securities	27,461	25,607
Gross unrealized gains, available for sale securities	913	476
Gross unrealized losses, available for sale securities	(1)	(5)
Fair value, available for sale securities	28,373	26,078
Amortized cost, held to maturity securities	3,405	3,599
Gross unrealized gains, held to maturity securities	138	81
Gross unrealized losses, held to maturity securities	0	0
Debt Securities, Held-to-maturity, Fair Value, Total	3,543	3,680
Corporate Debt Securities [Member]
Amortized cost, held to maturity securities	1,500	1,500
Gross unrealized gains, held to maturity securities	89	12
Gross unrealized losses, held to maturity securities	0	0
Debt Securities, Held-to-maturity, Fair Value, Total	$ 1,589	$ 1,512

X

- Definition

The total amount of available-for-sale and held-to-maturity debt securities measured at amortized cost.

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