Recorded Investment in Gross Loans, by Loan Grade (Detail) (USD $) | Jun. 30, 2014 | Dec. 31, 2013 |
In Thousands, unless otherwise specified |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | $534,911 | $523,807 |
Graded Loan | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 460,546 | 466,934 |
Graded Loan | Loan Grade 1 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 244 | 176 |
Graded Loan | Loan Grade 2 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 100 | 100 |
Graded Loan | Loan Grade 3 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 97,369 | 100,177 |
Graded Loan | Loan Grade 4 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 120,741 | 123,352 |
Graded Loan | Loan Grade 5 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 168,827 | 158,440 |
Graded Loan | Loan Grade 6 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 33,158 | 37,670 |
Graded Loan | Loan Grade 7 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 40,107 | 47,019 |
UnGraded Loan | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 74,365 | 56,873 |
UnGraded Loan | Performing Financing Receivable | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 73,290 | 56,873 |
UnGraded Loan | Nonperforming Financing Receivable | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 1,075 | ' |
One-to four Family Residential | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 231,517 | 225,520 |
One-to four Family Residential | Graded Loan | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 196,353 | 200,259 |
One-to four Family Residential | Graded Loan | Loan Grade 3 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 70,458 | 73,574 |
One-to four Family Residential | Graded Loan | Loan Grade 4 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 65,414 | 64,548 |
One-to four Family Residential | Graded Loan | Loan Grade 5 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 44,796 | 41,272 |
One-to four Family Residential | Graded Loan | Loan Grade 6 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 7,206 | 10,362 |
One-to four Family Residential | Graded Loan | Loan Grade 7 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 8,479 | 10,503 |
One-to four Family Residential | UnGraded Loan | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 35,164 | 25,261 |
One-to four Family Residential | UnGraded Loan | Performing Financing Receivable | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 34,327 | 25,261 |
One-to four Family Residential | UnGraded Loan | Nonperforming Financing Receivable | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 837 | ' |
Commercial Real Estate | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 165,154 | 155,633 |
Commercial Real Estate | Graded Loan | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 164,808 | 155,612 |
Commercial Real Estate | Graded Loan | Loan Grade 1 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 70 | ' |
Commercial Real Estate | Graded Loan | Loan Grade 3 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 14,283 | 11,960 |
Commercial Real Estate | Graded Loan | Loan Grade 4 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 26,330 | 28,164 |
Commercial Real Estate | Graded Loan | Loan Grade 5 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 85,175 | 72,975 |
Commercial Real Estate | Graded Loan | Loan Grade 6 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 19,315 | 18,167 |
Commercial Real Estate | Graded Loan | Loan Grade 7 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 19,635 | 24,346 |
Commercial Real Estate | UnGraded Loan | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 346 | 21 |
Commercial Real Estate | UnGraded Loan | Performing Financing Receivable | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 346 | 21 |
Home equity and other lines | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 56,206 | 56,836 |
Home equity and other lines | Graded Loan | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 31,341 | 34,126 |
Home equity and other lines | Graded Loan | Loan Grade 3 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 5,995 | 6,720 |
Home equity and other lines | Graded Loan | Loan Grade 4 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 10,866 | 12,250 |
Home equity and other lines | Graded Loan | Loan Grade 5 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 11,537 | 11,625 |
Home equity and other lines | Graded Loan | Loan Grade 6 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 1,100 | 1,578 |
Home equity and other lines | Graded Loan | Loan Grade 7 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 1,843 | 1,953 |
Home equity and other lines | UnGraded Loan | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 24,865 | 22,710 |
Home equity and other lines | UnGraded Loan | Performing Financing Receivable | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 24,685 | 22,710 |
Home equity and other lines | UnGraded Loan | Nonperforming Financing Receivable | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 180 | ' |
Residential Construction | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 9,431 | 8,952 |
Residential Construction | Graded Loan | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 4,515 | 6,555 |
Residential Construction | Graded Loan | Loan Grade 3 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 4 | 607 |
Residential Construction | Graded Loan | Loan Grade 4 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 1,640 | 2,670 |
Residential Construction | Graded Loan | Loan Grade 5 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 1,224 | 1,555 |
Residential Construction | Graded Loan | Loan Grade 6 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 1,647 | 1,723 |
Residential Construction | UnGraded Loan | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 4,916 | 2,397 |
Residential Construction | UnGraded Loan | Performing Financing Receivable | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 4,916 | 2,397 |
Other Construction and Land | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 57,717 | 64,927 |
Other Construction and Land | Graded Loan | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 54,071 | 60,613 |
Other Construction and Land | Graded Loan | Loan Grade 3 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 5,606 | 6,241 |
Other Construction and Land | Graded Loan | Loan Grade 4 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 15,159 | 14,489 |
Other Construction and Land | Graded Loan | Loan Grade 5 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 21,057 | 25,926 |
Other Construction and Land | Graded Loan | Loan Grade 6 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 2,662 | 4,331 |
Other Construction and Land | Graded Loan | Loan Grade 7 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 9,587 | 9,626 |
Other Construction and Land | UnGraded Loan | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 3,646 | 4,314 |
Other Construction and Land | UnGraded Loan | Performing Financing Receivable | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 3,588 | 4,314 |
Other Construction and Land | UnGraded Loan | Nonperforming Financing Receivable | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 58 | ' |
Commercial | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 11,612 | 8,285 |
Commercial | Graded Loan | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 9,214 | 8,191 |
Commercial | Graded Loan | Loan Grade 1 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 174 | 176 |
Commercial | Graded Loan | Loan Grade 2 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 100 | 100 |
Commercial | Graded Loan | Loan Grade 3 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 977 | 598 |
Commercial | Graded Loan | Loan Grade 4 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 1,202 | 1,000 |
Commercial | Graded Loan | Loan Grade 5 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 4,972 | 4,232 |
Commercial | Graded Loan | Loan Grade 6 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 1,226 | 1,495 |
Commercial | Graded Loan | Loan Grade 7 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 563 | 590 |
Commercial | UnGraded Loan | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 2,398 | 94 |
Commercial | UnGraded Loan | Performing Financing Receivable | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 2,398 | 94 |
Consumer | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 3,274 | 3,654 |
Consumer | Graded Loan | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 244 | 1,578 |
Consumer | Graded Loan | Loan Grade 3 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 46 | 477 |
Consumer | Graded Loan | Loan Grade 4 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 130 | 231 |
Consumer | Graded Loan | Loan Grade 5 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 66 | 855 |
Consumer | Graded Loan | Loan Grade 6 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 2 | 14 |
Consumer | Graded Loan | Loan Grade 7 | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | ' | 1 |
Consumer | UnGraded Loan | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | 3,030 | 2,076 |
Consumer | UnGraded Loan | Performing Financing Receivable | ' | ' |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ' | ' |
Loans Reported amount | $3,030 | $2,076 |