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Note 19 - Fair Value Measurements - Carrying Values and Estimated Values of Financial Instruments (Details) - USD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018
Securities available for sale		$ 120,983	$ 99,857
Securities held to maturity		17,627
Restricted securities		1,806	1,688
Bank owned life insurance		17,447	13,991
Fair Value, Inputs, Level 1 [Member]
Securities available for sale
Fair Value, Inputs, Level 2 [Member]
Securities available for sale			99,857
Fair Value, Inputs, Level 3 [Member]
Securities available for sale
Reported Value Measurement [Member]
Cash and short-term investments		45,785	28,618
Securities available for sale		120,983	99,857
Securities held to maturity		17,627	43,408
Restricted securities		1,806	1,688
Loans held for sale		167	419
Loans, net	[1]	569,412	537,847
Bank owned life insurance		17,447	13,991
Accrued interest receivable		2,065	2,113
Deposits		706,442	670,566
Subordinated debt		4,983	4,965
Junior subordinated debt		9,279	9,279
Accrued interest payable		184	139
Estimate of Fair Value Measurement [Member]
Cash and short-term investments		45,785	28,618
Securities available for sale		120,983	99,857
Securities held to maturity		17,646	42,394
Restricted securities		1,806	1,688
Loans held for sale		167	419
Loans, net	[1]	572,910	528,643
Bank owned life insurance		17,447	13,991
Accrued interest receivable		2,065	2,113
Deposits		705,949	668,567
Subordinated debt		5,023	5,035
Junior subordinated debt		9,724	7,952
Accrued interest payable		184	139
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and short-term investments		45,785	28,618
Securities available for sale
Securities held to maturity
Restricted securities
Loans held for sale
Loans, net	[1]
Bank owned life insurance
Accrued interest receivable
Deposits
Subordinated debt
Junior subordinated debt
Accrued interest payable
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Cash and short-term investments
Securities available for sale		120,983	99,857
Securities held to maturity		16,134	40,885
Restricted securities		1,806	1,688
Loans held for sale		167	419
Loans, net	[1]
Bank owned life insurance		17,447	13,991
Accrued interest receivable		2,065	2,113
Deposits		588,878	551,347
Subordinated debt
Junior subordinated debt
Accrued interest payable		184	139
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Cash and short-term investments
Securities available for sale
Securities held to maturity		1,512	1,509
Restricted securities
Loans held for sale
Loans, net	[1]	572,910	528,643
Bank owned life insurance
Accrued interest receivable
Deposits		117,071	117,220
Subordinated debt		5,023	5,035
Junior subordinated debt		9,724	7,952
Accrued interest payable
[1] In accordance with the prospective adoption of ASU No. 2016-01, "Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities," the fair value of loans as of December 31, 2018 was measured using an exit price notion. The fair value of loans as of December 31, 2017 was measured using an entry price notion.

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The fair value portion of accrued interest payable.

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Fair value of junior subordinated debt which has a lower priority of repayment than subordinated debt in the event the company falls into liquidation or bankruptcy.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
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The carrying amount of a life insurance policy on an officer, executive or employee for which the reporting entity (a bank) is entitled to proceeds from the policy upon death of the insured or surrender of the insurance policy.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

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Amount of investment in debt security measured at amortized cost (held-to-maturity).

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

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Investments which are not defined as or included in marketable (debt, equity, or other) securities whose use is restricted in whole or in part, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet.

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