Note 10 - Fair Value Measurements (Details) - Carrying Amount and Approximate Fair Value of Financial Instruments (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Financial assets
Cash and due from banks, carrying value	$ 19,537	$ 9,812
Cash and due from banks, fair value	19,541	9,812
Federal funds sold	738	196
Federal funds sold	738	196
Securities available-for-sale	57,922	63,466
Restricted equity securities	2,564	2,591
Restricted equity securities	2,564	2,591
Loans, net, carrying value	294,212	271,147
Loans, net, fair value	293,135	272,981
Bank owned life insurance	3,518
Accrued income	1,877	1,590
Accrued income	1,877	1,590
Derivative assets		67
Derivative assets		67
Financial liabilities
Total deposits, carrying value	339,770	309,997
Total deposits, fair value	327,514	310,453
Short term borrowings, carrying value	258	216
Short term borrowings, fair value	258	216
FHLB borrowings, carrying value	22,000	22,000
FHLB borrowings, fair value	22,560	22,862
Accrued interest payable, carrying value	286	332
Accrued interest payable, fair value	286	332
Derivative liabilities		67
Fair Value, Inputs, Level 1 [Member]
Financial assets
Cash and due from banks, fair value	17,537	9,812
Federal funds sold	738	196
Federal funds sold	738	196
Fair Value, Inputs, Level 2 [Member]
Financial assets
Securities available-for-sale	57,922	63,466
Restricted equity securities	2,564	2,591
Restricted equity securities	2,564	2,591
Bank owned life insurance	3,518
Accrued income	1,877	1,590
Accrued income	1,877	1,590
Derivative assets		67
Financial liabilities
Total deposits, fair value	327,514	310,453
Short term borrowings, fair value	258	216
FHLB borrowings, fair value	22,560	22,862
Accrued interest payable, fair value	286	332
Derivative liabilities		67
Fair Value, Inputs, Level 3 [Member]
Financial assets
Cash and due from banks, fair value	2,004
Loans, net, fair value	$ 293,135	$ 272,981