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Note 7 - Loans and Related Allowance for Loan and Lease Losses (Details) - Primary Segments of the Loan Portfolio - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Loans:    
Individually evaluated for impairment $ 18,150 $ 14,368
Collectively evaluated for impairment 474,743 456,216
Total loans 492,893 470,584
Commercial and Industrial [Member]    
Loans:    
Individually evaluated for impairment 1,652 1,393
Collectively evaluated for impairment 53,275 59,351
Total loans 54,927 60,744
Real Estate Construction Porfolio Segment [Member]    
Loans:    
Individually evaluated for impairment 3,144 3,296
Collectively evaluated for impairment 13,503 27,000
Total loans 16,647 30,296
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]    
Loans:    
Individually evaluated for impairment 4,448 5,183
Collectively evaluated for impairment 235,044 222,369
Total loans 239,492 227,552
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]    
Loans:    
Individually evaluated for impairment 8,900 4,490
Collectively evaluated for impairment 167,476 142,923
Total loans 176,376 147,413
Consumer Portfolio Segment [Member]    
Loans:    
Individually evaluated for impairment 6 6
Collectively evaluated for impairment 5,445 4,573
Total loans $ 5,451 $ 4,579