Note 18 - Fair Value Measurements (Details) - The Carrying Amounts and Estimated Fair Values of the Company’s Financial Instruments (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Assets
Cash and cash equivalents	$ 68,253,000	$ 95,855,000	$ 94,309,000	$ 182,056,000
Held to maturity investment securities	765,000	820,000
Held to maturity investment securities	827,000	956,000
Loans, net	979,306,000	980,550,000
Federal Home Loan Bank and Federal Reserve Bank Stock	9,500,000	9,500,000
Federal Home Loan Bank and Federal Reserve Bank Stock	9,500,000	9,500,000
Liabilities
Deposits	1,410,215,000	1,410,810,000
Federal funds purchased and other short-term borrowings	29,123,000	24,083,000
Securities sold under agreements to repurchase and other long-term borrowings	127,880,000	129,297,000
Subordinated notes payable to unconsolidated trusts	48,970,000	48,970,000
Estimate of Fair Value Measurement [Member]
Assets
Cash and cash equivalents	68,253,000	95,855,000
Held to maturity investment securities	827,000	956,000
Loans, net	977,846,000	979,301,000
Accrued interest receivable	5,901,000	6,074,000
Liabilities
Deposits	1,412,572,000	1,414,395,000
Federal funds purchased and other short-term borrowings	29,123,000	24,083,000
Securities sold under agreements to repurchase and other long-term borrowings	139,375,000	148,680,000
Subordinated notes payable to unconsolidated trusts	26,070,000	21,015,000
Accrued interest payable	1,137,000	1,370,000
Fair Value, Inputs, Level 1 [Member]
Assets
Cash and cash equivalents	68,253,000	95,855,000
Held to maturity investment securities	0	0
Loans, net	0	0
Accrued interest receivable	0	0
Federal Home Loan Bank and Federal Reserve Bank Stock	0	0
Federal Home Loan Bank and Federal Reserve Bank Stock	0	0
Liabilities
Deposits	938,700,000	870,145,000
Federal funds purchased and other short-term borrowings	0	0
Securities sold under agreements to repurchase and other long-term borrowings	0	0
Subordinated notes payable to unconsolidated trusts	0	0
Accrued interest payable	0	0
Fair Value, Inputs, Level 2 [Member]
Assets
Cash and cash equivalents	0	0
Held to maturity investment securities	827,000	956,000
Loans, net	0	0
Accrued interest receivable	5,901,000	6,074,000
Federal Home Loan Bank and Federal Reserve Bank Stock	0	0
Federal Home Loan Bank and Federal Reserve Bank Stock	0	0
Liabilities
Deposits	0	0
Federal funds purchased and other short-term borrowings	29,123,000	24,083,000
Securities sold under agreements to repurchase and other long-term borrowings	139,375,000	148,680,000
Subordinated notes payable to unconsolidated trusts	0	0
Accrued interest payable	1,137,000	1,370,000
Fair Value, Inputs, Level 3 [Member]
Assets
Cash and cash equivalents	0	0
Held to maturity investment securities	0	0
Loans, net	977,846,000	979,301,000
Accrued interest receivable	0	0
Federal Home Loan Bank and Federal Reserve Bank Stock	0	0
Federal Home Loan Bank and Federal Reserve Bank Stock	0	0
Liabilities
Deposits	473,872,000	544,250,000
Federal funds purchased and other short-term borrowings	0	0
Securities sold under agreements to repurchase and other long-term borrowings	0	0
Subordinated notes payable to unconsolidated trusts	26,070,000	21,015,000
Accrued interest payable	0	0
Reported Value Measurement [Member]
Assets
Cash and cash equivalents	68,253,000	95,855,000
Held to maturity investment securities	765,000	820,000
Loans, net	979,306,000	980,550,000
Accrued interest receivable	5,901,000	6,074,000
Federal Home Loan Bank and Federal Reserve Bank Stock	9,516,000	9,516,000
Federal Home Loan Bank and Federal Reserve Bank Stock	9,516,000	9,516,000
Liabilities
Deposits	1,410,215,000	1,410,810,000
Federal funds purchased and other short-term borrowings	29,123,000	24,083,000
Securities sold under agreements to repurchase and other long-term borrowings	127,880,000	129,297,000
Subordinated notes payable to unconsolidated trusts	48,970,000	48,970,000
Accrued interest payable	$ 1,137,000	$ 1,370,000