Note 3 - Loans Receivable (Details)	12 Months Ended
Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Note 3 - Loans Receivable (Details) [Line Items]
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	$ 842,000	$ 0
Financing Receivable, Modifications, Number of Contracts	1	1
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 426,000	$ 1,254,000
Allowance for Credit Losses, Change in Method of Calculating Impairment	0	0
Performing Financial Instruments [Member]
Note 3 - Loans Receivable (Details) [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 6,400,000	$ 6,100,000
Financing Receivable, Modifications, Number of Contracts	4	2
Nonperforming Financial Instruments [Member]
Note 3 - Loans Receivable (Details) [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 252,000	$ 639,000
Financing Receivable, Modifications, Number of Contracts	2	2
Troubled Debt Restructuring [Member]
Note 3 - Loans Receivable (Details) [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 6,700,000	$ 6,700,000
Financing Receivable, Modifications, Number of Contracts	6	4
Troubled Debt Restructuring [Member] \| Substandard [Member]
Note 3 - Loans Receivable (Details) [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status		$ 22,000

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Amount of allowance for credit losses related to receivables which had been measured under a general allowance for credit losses methodology that are now identified as troubled debt restructurings.

+ References

No definition available.

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524

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The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554

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Recorded investment in financing receivables that are 90 days or more past due and still accruing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5111-111524

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Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

+ References

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