Note 5 - Securities (Details) - Fair Value of the Securities Held for Pledging $ in Thousands	Sep. 30, 2015 USD ($)
Note 5 - Securities (Details) - Fair Value of the Securities Held for Pledging [Line Items]
Liabilities	$ 50,132
Public Funds Collateral [Member]
Note 5 - Securities (Details) - Fair Value of the Securities Held for Pledging [Line Items]
Liabilities	29,006
Federal Home Loan Bank Borrowings [Member]
Note 5 - Securities (Details) - Fair Value of the Securities Held for Pledging [Line Items]
Liabilities	16,629
Interest Rate Swap Contracts [Member]
Note 5 - Securities (Details) - Fair Value of the Securities Held for Pledging [Line Items]
Liabilities	4,497
Securities Pledged as Collateral [Member]
Note 5 - Securities (Details) - Fair Value of the Securities Held for Pledging [Line Items]
Liabilities	22,219
Securities Pledged as Collateral [Member] | Public Funds Collateral [Member]
Note 5 - Securities (Details) - Fair Value of the Securities Held for Pledging [Line Items]
Liabilities	19,083
Securities Pledged as Collateral [Member] | Interest Rate Swap Contracts [Member]
Note 5 - Securities (Details) - Fair Value of the Securities Held for Pledging [Line Items]
Liabilities	3,136
Securities Available to be Pledged [Member]
Note 5 - Securities (Details) - Fair Value of the Securities Held for Pledging [Line Items]
Liabilities	27,913
Securities Available to be Pledged [Member] | Public Funds Collateral [Member]
Note 5 - Securities (Details) - Fair Value of the Securities Held for Pledging [Line Items]
Liabilities	9,923
Securities Available to be Pledged [Member] | Federal Home Loan Bank Borrowings [Member]
Note 5 - Securities (Details) - Fair Value of the Securities Held for Pledging [Line Items]
Liabilities	16,629
Securities Available to be Pledged [Member] | Interest Rate Swap Contracts [Member]
Note 5 - Securities (Details) - Fair Value of the Securities Held for Pledging [Line Items]
Liabilities	$ 1,361