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Note 3 - Loans Receivable and Allowance for Loan Losses (Details Textual) | 6 Months Ended |
--- | --- | ---
Jun. 30, 2016 USD ($) | Jun. 30, 2015 | Dec. 31, 2015 USD ($)
Residential Portfolio Segment [Member] | Reclassified from Commercial and Industrial Portfolio Segment [Member] |  |  |
Loans and Leases Receivable, Gross |  |  | $ 28,200,000
Residential Portfolio Segment [Member] |  |  |
Loans and Leases Receivable, Gross | $ 104,746,000 |  | 110,837,000
Impaired Financing Receivable, Unpaid Principal Balance | 5,518,000 |  | 5,559,000
Financing Receivable, Recorded Investment, Nonaccrual Status | 1,590,000 |  | 1,590,000
Impaired Financing Receivable, Related Allowance |  |  |
Impaired Financing Receivable, Recorded Investment | 4,515,000 |  | 4,556,000
Commercial Real Estate Portfolio Segment [Member] |  |  |
Loans and Leases Receivable, Gross | $ 270,003,000 |  | 245,828,000
Maximum Percentage of Credit Extension Based on Market Value of Collateral | 75.00% |  |
Impaired Financing Receivable, Unpaid Principal Balance | $ 7,031,000 |  | 8,259,000
Financing Receivable, Recorded Investment, Nonaccrual Status |  |  |
Impaired Financing Receivable, Related Allowance |  |  |
Impaired Financing Receivable, Recorded Investment | $ 6,526,000 |  | 7,745,000
Multi-family Real Estate [Member] |  |  |
Maximum Percentage of Credit Extension Based on Market Value of Collateral | 80.00% |  |
Construction Portfolio Segment [Member] |  |  |
Loans and Leases Receivable, Gross | $ 26,094,000 |  | 15,551,000
Percentage of Maximum Loan to Value | 75.00% |  |
Impaired Financing Receivable, Unpaid Principal Balance | $ 287,000 |  | 287,000
Financing Receivable, Recorded Investment, Nonaccrual Status |  |  |
Impaired Financing Receivable, Related Allowance |  |  |
Impaired Financing Receivable, Recorded Investment |  |  |
Non-Accrual Loans [Member] |  |  |
Impaired Financing Receivable, Unpaid Principal Balance | $ 4,800,000 |  | 1,600,000
Financing Receivable, Modifications, Number of Contracts | 0 | 0 |
Loans and Leases Receivable, Impaired, Commitment to Lend | $ 0 |  | 0
Loans and Leases Receivable, Gross | 528,654,000 |  | 484,369,000
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums | 800,000 |  | 900,000
Loans and Leases Receivable, Deferred Income | $ 300,000 |  | 300,000
Maximum Period of Credit Extension of Construction Loans | 1 year 180 days |  |
Period for Charged Off of Open-End Credits | 180 days |  |
Period for Charged Off of Close-End Credits | 120 days |  |
Impaired Financing Receivable, Unpaid Principal Balance | $ 16,771,000 |  | 14,837,000
Financing Receivable, Recorded Investment, Nonaccrual Status | 4,800,000 |  | 1,593,000
Financing Receivable, Recorded Investment, Nonaccrual Status, Increase (Decrease) | $ 3,200,000 |  |
Maximum Period for Charged Off of Consumer Installment Loans | 90 days |  |
Number of Non-Accruing Loans | 5 |  |
Impaired Financing Receivable, Related Allowance | $ 1,020,000 |  | 3,000
Impaired Financing Receivable, Recorded Investment | $ 14,859,000 |  | $ 12,851,000

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