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Note 4 - Loans and Allowance for Loan Losses (Details Textual) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Number of Portfolio Segments | 8 |
Number of Loans, Related Party | 0 | 1
Financing Receivable, Recorded Investment, Nonaccrual Status | $ 2,205 | $ 2,417
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans | 9 | 35
Interest Income Recorded | $ 1 | 4
Troubled Debt Restructuring, Modified Period Term | 180 days |
Financing Receivable, Restructuring Recorded Investment With Nonaccrual Status | $ 200 | 100
Financing Receivable, Modifications, Recorded Investment |  | $ 300
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | 0 | 0
Loans Modified in a Troubled Debt Restructuring, Individually Evaluated for Impairment, Principal Balance, Threshold | $ 500 |
Allowance for Credit Losses, Change in Method of Calculating Impairment | 9 | $ 15
Financing Receivable, Restructuring, Recorded Investment Restored to Accrual Status | 0 |
Minimum [Member] |  |
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest | 500 |
Minimum [Member] | ALC [Member] |  |
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest | 100 |
Related Party Loan [Member] |  |
Loans and Leases Receivable, Related Parties | 2,700 | 2,700
Loans and Leases Receivable, Related Parties, Proceeds | $ 35 | $ 100
Real Estate [Member] |  |
Percentage of Loan Portfolio | 56.40% | 56.60%

X
- Definition Represents the amount of financing receivable restructuring recorded investment restored to accrual status. + References No definition available. + Details
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- Definition Represents the amount of financing receivable restructuring recorded investment with nonaccrual status. + References No definition available. + Details
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- Definition Interest income recorded. + References No definition available. + Details
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- Definition Represents the threshold used in determining which loans that have been modified in a troubled debt restructuring are considered impaired and evaluated individually for impairment. All such loans with a principal balance above this threshold are considered impaired and evaluated individually for impairment. + References No definition available. + Details
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- Definition Indicates the number of loans made to related party during the period. + References No definition available. + Details
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- Definition Represents the number of portfolio segments into which the Company has divided the loan portfolio as of the balance sheet date. + References No definition available. + Details
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- Definition Represents the percentage of the loan portfolio that is concentrated in a certain category. + References No definition available. + Details
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- Definition Represents the troubled debt restructuring modified period term. + References No definition available. + Details
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- Definition 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. + Details
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- Definition 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=82895541&loc=d3e18845-111554 + Details
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- Definition Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953682-111524 + Details
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- Definition Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date. + 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 (a) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524 + Details
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- Definition Reflects the amount of additional interest income that would have been recorded if impaired or nonperforming loans were instead current, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82895541&loc=d3e18794-111554 + Details
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- Definition Reflects the carrying amount of loans deemed to be questionable as to collection on which no interest is continuing to be recognized. + 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 (a) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524 + Details
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- Definition For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date. + 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 210.9-03.7(e)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
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- Definition Amount of cash inflow from related parties which reduce the amount of loans and leases receivable due from related parties. + 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 210.9-03.7(e)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
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