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Note 1 - Summary of Significant Accounting Policies (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2014 | Dec. 31, 2015 USD ($) shares | Dec. 31, 2014 USD ($) shares | Dec. 31, 2013 shares
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Number of Reportable Segments |  | 2 |  |
Percentage of Loan Portfolio |  | 100.00% | 100.00% |
Due from Banks |  | $ 34,933,000 |  |
Repossessed Assets |  | 2,358,000 | $ 1,525,000 |
Goodwill, Impairment Loss |  | 0 |  |
Servicing Asset |  | $ 429,000 | $ 484,000 |
Weighted Average Number of Shares Outstanding, Basic | shares |  | 4,117,675 | 4,099,194 | 4,064,083
Weighted Average Number of Shares Outstanding, Diluted | shares |  | 0 | 0 | 0
Restricted Cash and Cash Equivalents |  | $ 36,535,000 | $ 22,122,000 |
Unsecured [Member] |  |  |  |
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Percentage of Loan Portfolio |  | 6.06% | 5.66% |
Consumer Portfolio Segment [Member] |  |  |  |
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Period of Actual Loss History Experienced |  | 3 years |  |
Percentage of Loan Portfolio |  | 18.89% | 18.42% |
Commercial Portfolio Segment [Member] |  |  |  |
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Period of Actual Loss History Experienced | 5 years | 5 years |  | 3 years
Percentage of Loan Portfolio |  | 13.99% | 14.12% |
Minimum [Member] | Equipment, Furniture and Fixtures [Member] |  |  |  |
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Property, Plant and Equipment, Useful Life |  | 3 years |  |
Minimum [Member] | Building and Building Improvements [Member] |  |  |  |
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Property, Plant and Equipment, Useful Life |  | 7 years |  |
Maximum [Member] | Equipment, Furniture and Fixtures [Member] |  |  |  |
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Property, Plant and Equipment, Useful Life |  | 8 years |  |
Maximum [Member] | Building and Building Improvements [Member] |  |  |  |
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Property, Plant and Equipment, Useful Life |  | 39 years |  |

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