Loans - Risk category of loans by class (Details 1) - Loans - USD ($) $ in Thousands | Mar. 31, 2016 | Dec. 31, 2015 |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 206,326 | $ 202,393 |
Pass | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 204,765 | $ 200,940 |
Special Mention | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Substandard | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 1,560 | $ 1,452 |
Doubtful | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | 1 | 1 |
Real Estate Loans | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | 205,366 | 201,479 |
Real Estate Loans | Pass | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 203,806 | $ 200,027 |
Real Estate Loans | Special Mention | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Real Estate Loans | Substandard | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 1,560 | $ 1,452 |
Real Estate Loans | Doubtful | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Real Estate Loans | Secured by one-to-four family residences | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 178,677 | $ 177,037 |
Real Estate Loans | Secured by one-to-four family residences | Pass | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 177,414 | $ 175,885 |
Real Estate Loans | Secured by one-to-four family residences | Special Mention | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Real Estate Loans | Secured by one-to-four family residences | Substandard | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 1,263 | $ 1,152 |
Real Estate Loans | Secured by one-to-four family residences | Doubtful | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Real Estate Loans | Secured by multi-family residences | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 5,469 | $ 5,146 |
Real Estate Loans | Secured by multi-family residences | Pass | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 5,469 | $ 5,146 |
Real Estate Loans | Secured by multi-family residences | Special Mention | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Real Estate Loans | Secured by multi-family residences | Substandard | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Real Estate Loans | Secured by multi-family residences | Doubtful | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Real Estate Loans | Construction | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 1,544 | $ 1,251 |
Real Estate Loans | Construction | Pass | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 1,544 | $ 1,251 |
Real Estate Loans | Construction | Special Mention | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Real Estate Loans | Construction | Substandard | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Real Estate Loans | Construction | Doubtful | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Real Estate Loans | Commercial real estate | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 4,589 | $ 3,522 |
Real Estate Loans | Commercial real estate | Pass | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 4,589 | $ 3,522 |
Real Estate Loans | Commercial real estate | Special Mention | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Real Estate Loans | Commercial real estate | Substandard | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Real Estate Loans | Commercial real estate | Doubtful | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Real Estate Loans | Home equity lines of credit | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 15,087 | $ 14,523 |
Real Estate Loans | Home equity lines of credit | Pass | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 14,790 | $ 14,223 |
Real Estate Loans | Home equity lines of credit | Special Mention | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Real Estate Loans | Home equity lines of credit | Substandard | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 297 | $ 300 |
Real Estate Loans | Home equity lines of credit | Doubtful | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Other Loans Portfolio Segment | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 960 | $ 914 |
Other Loans Portfolio Segment | Commercial & industrial loans | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | 896 | 853 |
Other Loans Portfolio Segment | Commercial & industrial loans | Pass | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 896 | $ 853 |
Other Loans Portfolio Segment | Commercial & industrial loans | Special Mention | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Other Loans Portfolio Segment | Commercial & industrial loans | Substandard | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Other Loans Portfolio Segment | Commercial & industrial loans | Doubtful | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Other Loans Portfolio Segment | Other loans | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 64 | $ 61 |
Other Loans Portfolio Segment | Other loans | Pass | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 63 | $ 60 |
Other Loans Portfolio Segment | Other loans | Special Mention | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Other Loans Portfolio Segment | Other loans | Substandard | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | | |
Other Loans Portfolio Segment | Other loans | Doubtful | | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | | |
Loans | $ 1 | $ 1 |