Note 4 - Investment Securities - Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Amortized cost	$ 32,817	$ 46,605
Unrealized gains	229	33
Unrealized losses	(165)	(1,210)
Investment securities available for sale	32,881	45,428
Unrealized losses	165	1,210
US Government Agencies Debt Securities [Member]
Amortized cost		244
Unrealized gains		1
Unrealized losses
Investment securities available for sale		245
Unrealized losses
Collateralized Mortgage Backed Securities [Member]
Amortized cost	19,540	25,627
Unrealized gains	61	1
Unrealized losses	(97)	(865)
Investment securities available for sale	19,504	24,763
Unrealized losses	97	865
Corporate Debt Securities [Member]
Amortized cost	1,500	2,970
Unrealized gains
Unrealized losses	(67)	(181)
Investment securities available for sale	1,433	2,789
Unrealized losses	67	181
US States and Political Subdivisions Debt Securities [Member]
Amortized cost	11,777	17,764
Unrealized gains	168	31
Unrealized losses	(1)	(164)
Investment securities available for sale	11,944	17,631
Unrealized losses	$ 1	$ 164

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

No definition available.

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- Definition

Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563

+ Details

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- Definition

Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

No definition available.

+ Details

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- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

No definition available.

+ Details

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