Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Note 4 - Loans and Allowance for Loan Losses - Loan Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Total loans	$ 365,003	$ 357,458
Less: Unearned interest, fees and deferred cost	6,369	6,563
Loans, allowance for loan losses	4,829	4,774
Net loans	353,805	346,121	$ 317,677
FUSB [Member]
Total loans	262,125	257,503
Less: Unearned interest, fees and deferred cost	349	374
Loans, allowance for loan losses	2,500	2,447		$ 2,409
Net loans	259,276	254,682
ALC [Member]
Total loans	102,878	99,955
Less: Unearned interest, fees and deferred cost	6,020	6,189
Loans, allowance for loan losses	2,329	2,327		2,447
Net loans	94,529	91,439
Real Estate [Member] \| Construction, Land Development and Other Land Loans [Member]
Total loans	25,965	26,143
Real Estate [Member] \| Construction, Land Development and Other Land Loans [Member] \| FUSB [Member]
Total loans	25,965	26,143
Loans, allowance for loan losses	196	203		535
Real Estate [Member] \| Construction, Land Development and Other Land Loans [Member] \| ALC [Member]
Total loans
Loans, allowance for loan losses
Real Estate [Member] \| Secured by 1-4 Family Residential Properties [Member]
Total loans	46,581	45,073
Real Estate [Member] \| Secured by 1-4 Family Residential Properties [Member] \| FUSB [Member]
Total loans	36,618	34,272
Loans, allowance for loan losses	254	238		304
Real Estate [Member] \| Secured by 1-4 Family Residential Properties [Member] \| ALC [Member]
Total loans	9,963	10,801
Loans, allowance for loan losses	36	52		107
Real Estate [Member] \| Secured by Multi-family Residential Properties [Member]
Total loans	16,396	16,579
Real Estate [Member] \| Secured by Multi-family Residential Properties [Member] \| FUSB [Member]
Total loans	16,396	16,579
Loans, allowance for loan losses	115	116		88
Real Estate [Member] \| Secured by Multi-family Residential Properties [Member] \| ALC [Member]
Total loans
Loans, allowance for loan losses
Real Estate [Member] \| Secured by Non-farm, Non-residential Properties [Member]
Total loans	111,546	105,133
Real Estate [Member] \| Secured by Non-farm, Non-residential Properties [Member] \| FUSB [Member]
Total loans	111,546	105,133
Loans, allowance for loan losses	798	777		903
Real Estate [Member] \| Secured by Non-farm, Non-residential Properties [Member] \| ALC [Member]
Total loans
Loans, allowance for loan losses
Real Estate [Member] \| Other Real Estate Loans [Member]
Total loans	188	190
Real Estate [Member] \| Other Real Estate Loans [Member] \| FUSB [Member]
Total loans	188	190
Loans, allowance for loan losses	2	2		2
Real Estate [Member] \| Other Real Estate Loans [Member] \| ALC [Member]
Total loans
Loans, allowance for loan losses
Commercial and Industrial Loans [Member]
Total loans	65,996	69,969
Commercial and Industrial Loans [Member] \| FUSB [Member]
Total loans	65,996	69,969
Loans, allowance for loan losses	1,090	1,049		527
Commercial and Industrial Loans [Member] \| ALC [Member]
Total loans
Loans, allowance for loan losses
Consumer Portfolio Segment [Member] \| FUSB [Member]
Total loans	5,416	5,217
Consumer Portfolio Segment [Member] \| Consumer Loans [Member]
Total loans	38,174	39,300
Consumer Portfolio Segment [Member] \| Consumer Loans [Member] \| FUSB [Member]
Total loans	5,416	5,217
Loans, allowance for loan losses	45	62		50
Consumer Portfolio Segment [Member] \| Consumer Loans [Member] \| ALC [Member]
Total loans	32,758	34,083
Loans, allowance for loan losses	1,652	1,653		1,717
Consumer Portfolio Segment [Member] \| Indirect Sales [Member]
Total loans	60,157	55,071
Consumer Portfolio Segment [Member] \| Indirect Sales [Member] \| FUSB [Member]
Total loans
Loans, allowance for loan losses
Consumer Portfolio Segment [Member] \| Indirect Sales [Member] \| ALC [Member]
Total loans	60,157	55,071
Loans, allowance for loan losses	$ 641	$ 622		$ 623