Note 4 - Loans (Details) - Impaired Loans (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
Impaired loans, recorded investment	$ 5,671	$ 6,262
impaired loans, unpaid principal balance	5,925	6,471
impaired loans, related allowance	990	1,043
Impaired loans, average balance	5,767	5,542
Impaired loans, interest income recognized	129	219
Real Estate - Residential Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans, recorded investment	2,348	2,601
impaired loans, unpaid principal balance	2,460	2,694
impaired loans, related allowance	430	390
Impaired loans, average balance	2,374	2,090
Impaired loans, interest income recognized	57	99
Commercial Real Estate Lending [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans, recorded investment	2,711	2,729
impaired loans, unpaid principal balance	2,851	2,780
impaired loans, related allowance	416	504
Impaired loans, average balance	2,776	2,748
Impaired loans, interest income recognized	65	99
Builder Line Lending [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans, recorded investment		13
impaired loans, unpaid principal balance		16
impaired loans, related allowance		4
Impaired loans, average balance		14
Impaired loans, interest income recognized		1
Commercial Business Lending [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans, recorded investment	489	695
impaired loans, unpaid principal balance	489	756
impaired loans, related allowance	129	131
Impaired loans, average balance	492	562
Impaired loans, interest income recognized	5	11
Equity Lines [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans, recorded investment	30	131
impaired loans, unpaid principal balance	32	132
impaired loans, related allowance	1
Impaired loans, average balance	32	33
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans, recorded investment	93	93
impaired loans, unpaid principal balance	93	93
impaired loans, related allowance	14	14
Impaired loans, average balance	93	95
Impaired loans, interest income recognized	$ 2	$ 9