Note 7 - Other Borrowed Money (Details Textual) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Sep. 30, 2017
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Due Date, Earliest		2017
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Due Date, Last		2026
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged		$ 112,553
Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds		248,160
Line of Credit Facility, Current Borrowing Capacity		43,500
Long-term Line of Credit		0
Notes Payable to Banks [Member]
Short-term Debt	$ 5,000
Debt Instrument, Term	1 year
Debt Instrument, Interest Rate, Stated Percentage	5.00%
Notes Payable to Banks [Member] \| Prime Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	0.75%
Federal Reserve Bank Advances [Member]
Short-term Debt		$ 0
Minimum [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End		0.98%
Maximum [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End		3.51%

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount of advances or credit lines available from the Federal Home Loan Bank (FHLB).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.13(3)(a))
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Amount of the collateral pledged in support of federal home loan bank advances outstanding.

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-Publisher FASB
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- Definition

The earliest year of maturity for the advances from the Federal Home Loan Bank as of the Balance Sheet date.

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The last year of maturity for the advances from the Federal Home Loan Bank as of the Balance Sheet date.

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- Definition

States the interest rate applicable to Federal Home Loan Bank advances outstanding as of the Balance Sheet date.

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-Publisher FASB
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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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