Note 7 - Fair Value Measurement (Details) - Fair Value of Financial Instruments (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Financial assets
Cash and due from banks	$ 14,051	$ 19,537
Cash and due from banks, fair value	14,079	19,541
Federal funds sold	111	738
Federal funds sold, fair value	111	738
Securities available-for-sale	56,662	57,922
Restricted equity securities	2,577	2,564
Restricted equity securities, fair value	2,577	2,564
Loans held for sale	317	0
Loans held for sale	317
Loans, net	315,842	294,212
Loans, net, fair value	316,414	293,135
Bank owned life insurance	3,595	3,518
Bank owned life insurance, fair value	3,595	3,518
Accrued income	1,777	1,877
Accrued income, fair value	1,777	1,877
Financial liabilities
Total deposits	351,477	339,770
Total deposits, fair value	338,622	327,514
Short term borrowings	469	258
Short term borrowings, fair value	469	258
FHLB borrowings	22,250	22,000
FHLB borrowings, fair value	22,629	22,560
Accrued interest payable	295	286
Accrued interest payable, fair value	295	286
Fair Value, Inputs, Level 1 [Member]
Financial assets
Cash and due from banks, fair value	12,051	17,537
Federal funds sold	111	738
Federal funds sold, fair value	111	738
Fair Value, Inputs, Level 2 [Member]
Financial assets
Securities available-for-sale	56,662	57,922
Restricted equity securities	2,577	2,564
Restricted equity securities, fair value	2,577	2,564
Loans held for sale	317
Bank owned life insurance	3,595	3,518
Bank owned life insurance, fair value	3,595	3,518
Accrued income	1,777	1,877
Accrued income, fair value	1,777	1,877
Financial liabilities
Total deposits, fair value	338,622	327,514
Short term borrowings, fair value	469	258
FHLB borrowings, fair value	22,629	22,560
Accrued interest payable, fair value	295	286
Fair Value, Inputs, Level 3 [Member]
Financial assets
Cash and due from banks, fair value	2,028	2,004
Loans, net, fair value	$ 316,414	$ 293,135