Note 4 - Loans and Allowance for Loan Losses (Details) - Activity for Troubled Debt Restructurings (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Commercial and Industrial [Member]
Commercial Loan Portfolio:
Balance	$ 1,404,000	$ 3,269,000	$ 1,656,000	$ 2,721,000
Charge-Offs	(67,000)	0	(67,000)	(34,000)
Payments	(161,000)	(1,063,000)	(427,000)	(1,578,000)
Transfers to ORE	0	0	0	(74,000)
Net Additions/Deletions	0	60,000	14,000	1,231,000
Balance	1,176,000	2,266,000	1,176,000	2,266,000
Commercial Vacant Land and Land Development and Residential Construction Loan [Member]
Commercial Loan Portfolio:
Balance	4,250,000	2,327,000	4,501,000	3,071,000
Charge-Offs	0	(30,000)	0	(725,000)
Payments	(464,000)	(104,000)	(3,613,000)	(153,000)
Transfers to ORE	0	0	0	0
Net Additions/Deletions	0	3,247,000	2,898,000	3,247,000
Balance	3,786,000	5,440,000	3,786,000	5,440,000
Commercial Real Estate Owner Occupied Loan [Member]
Commercial Loan Portfolio:
Balance	1,756,000	3,879,000	1,816,000	4,115,000
Charge-Offs	0	(70,000)	(11,000)	(70,000)
Payments	(42,000)	(979,000)	(90,000)	(1,039,000)
Transfers to ORE	0	0	0	(363,000)
Net Additions/Deletions	997,000	749,000	996,000	936,000
Balance	2,711,000	3,579,000	2,711,000	3,579,000
Commercial Real Estate Non Owner Occupied Loan [Member]
Commercial Loan Portfolio:
Balance	21,629,000	35,003,000	22,311,000	37,672,000
Charge-Offs	0	(5,000)	0	(716,000)
Payments	(2,965,000)	(574,000)	(3,966,000)	(3,786,000)
Transfers to ORE	0	0	0	(802,000)
Net Additions/Deletions	0	0	319,000	2,056,000
Balance	18,664,000	34,424,000	18,664,000	34,424,000
Commercial Real Estate Multi Family and Residential Rental Loan [Member]
Commercial Loan Portfolio:
Balance	732,000	2,958,000	2,620,000	3,025,000
Charge-Offs	0	0	(420,000)	(15,000)
Payments	(13,000)	(183,000)	(1,481,000)	(235,000)
Transfers to ORE	0	0	0	0
Net Additions/Deletions	0	0	0	0
Balance	719,000	2,775,000	719,000	2,775,000
Retail Home Equity and Other [Member]
Commercial Loan Portfolio:
Balance	0	0	0	0
Charge-Offs	0	0	0	0
Payments	0	0	0	0
Transfers to ORE	0	0	0	0
Net Additions/Deletions	0	0	0	0
Balance	0	0	0	0
Retail 1-4 Family Mortgages [Member]
Commercial Loan Portfolio:
Balance	2,122,000	152,000	2,191,000	155,000
Charge-Offs	0	0	0	0
Payments	(45,000)	(2,000)	(114,000)	(5,000)
Transfers to ORE	0	0	0	0
Net Additions/Deletions	0	1,879,000	0	1,879,000
Balance	$ 2,077,000	$ 2,029,000	$ 2,077,000	$ 2,029,000