Allowance for Loan Losses - Risk Category of Loans by Class of Loans (Detail) (USD $) | Jun. 30, 2014 | Dec. 31, 2013 |
In Thousands, unless otherwise specified |
Financing Receivable, Recorded Investment [Line Items] | ' | ' |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance | $785 | $820 |
Commercial : Commercial and other [Member] | ' | ' |
Financing Receivable, Recorded Investment [Line Items] | ' | ' |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance | 27 | 27 |
Commercial: Five or more family [Member] | ' | ' |
Financing Receivable, Recorded Investment [Line Items] | ' | ' |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance | 639 | 670 |
Mortgage Receivable [Member] | ' | ' |
Financing Receivable, Recorded Investment [Line Items] | ' | ' |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance | 119 | 123 |
Not Rated [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 180,392 | 161,584 |
Not Rated [Member] | Residential Construction: Construction [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 774 | 503 |
Not Rated [Member] | Commercial : Commercial and other [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 88 | 83 |
Not Rated [Member] | Commercial: Five or more family [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 101 | 0 |
Not Rated [Member] | Commercial Real Estate And Multi Family Portfolio Segment [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 182 | 188 |
Not Rated [Member] | Commercial: Land [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 0 |
Not Rated [Member] | Commercial: Construction [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 0 |
Not Rated [Member] | Mortgage Receivable [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 31,642 | 29,977 |
Not Rated [Member] | Mortgage Warehouse [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 132,163 | ' |
Not Rated [Member] | Mortgage Warehouse [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | ' | 115,443 |
Not Rated [Member] | Residential Construction: Land [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 241 | 289 |
Not Rated [Member] | Home Equity [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 11,375 | 11,116 |
Not Rated [Member] | Consumer and other [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 3,826 | 3,985 |
Pass [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 110,555 | 114,212 |
Pass [Member] | Residential Construction: Construction [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 0 |
Pass [Member] | Commercial : Commercial and other [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 17,857 | 17,159 |
Pass [Member] | Commercial: Five or more family [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 67,954 | 71,943 |
Pass [Member] | Commercial Real Estate And Multi Family Portfolio Segment [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 14,139 | 11,706 |
Pass [Member] | Commercial: Land [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 4,989 | 5,296 |
Pass [Member] | Commercial: Construction [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 1,852 | 3,949 |
Pass [Member] | Mortgage Receivable [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 2,987 | 3,323 |
Pass [Member] | Mortgage Warehouse [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | ' |
Pass [Member] | Mortgage Warehouse [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | ' | 0 |
Pass [Member] | Residential Construction: Land [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 0 |
Pass [Member] | Home Equity [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 119 | 133 |
Pass [Member] | Consumer and other [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 658 | 703 |
Special Mention [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 6,081 | 7,995 |
Special Mention [Member] | Residential Construction: Construction [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 0 |
Special Mention [Member] | Commercial : Commercial and other [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 245 | 380 |
Special Mention [Member] | Commercial: Five or more family [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 5,526 | 6,705 |
Special Mention [Member] | Commercial Real Estate And Multi Family Portfolio Segment [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 0 |
Special Mention [Member] | Commercial: Land [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 104 | 106 |
Special Mention [Member] | Commercial: Construction [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 0 |
Special Mention [Member] | Mortgage Receivable [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 130 | 471 |
Special Mention [Member] | Mortgage Warehouse [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | ' |
Special Mention [Member] | Mortgage Warehouse [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | ' | 0 |
Special Mention [Member] | Residential Construction: Land [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 0 |
Special Mention [Member] | Home Equity [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 76 | 101 |
Special Mention [Member] | Consumer and other [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 232 |
Substandard [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 13,782 | 13,098 |
Substandard [Member] | Residential Construction: Construction [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 0 |
Substandard [Member] | Commercial : Commercial and other [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 14 | 18 |
Substandard [Member] | Commercial: Five or more family [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 5,110 | 5,111 |
Substandard [Member] | Commercial Real Estate And Multi Family Portfolio Segment [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 3,728 | 3,508 |
Substandard [Member] | Commercial: Land [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 2,738 | 2,747 |
Substandard [Member] | Commercial: Construction [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 0 |
Substandard [Member] | Mortgage Receivable [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 2,108 | 1,667 |
Substandard [Member] | Mortgage Warehouse [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | ' |
Substandard [Member] | Mortgage Warehouse [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | ' | 0 |
Substandard [Member] | Residential Construction: Land [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 43 | 0 |
Substandard [Member] | Home Equity [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 41 | 47 |
Substandard [Member] | Consumer and other [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 0 |
Doubtful [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 23 | 23 |
Doubtful [Member] | Residential Construction: Construction [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 0 |
Doubtful [Member] | Commercial : Commercial and other [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 0 |
Doubtful [Member] | Commercial: Five or more family [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 23 | 23 |
Doubtful [Member] | Commercial Real Estate And Multi Family Portfolio Segment [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 0 |
Doubtful [Member] | Commercial: Land [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 0 |
Doubtful [Member] | Commercial: Construction [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 0 |
Doubtful [Member] | Mortgage Receivable [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 0 |
Doubtful [Member] | Mortgage Warehouse [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | ' |
Doubtful [Member] | Mortgage Warehouse [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | ' | 0 |
Doubtful [Member] | Residential Construction: Land [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 0 |
Doubtful [Member] | Home Equity [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | 0 | 0 |
Doubtful [Member] | Consumer and other [Member] | ' | ' |
Recent analysis performed for risk category of loans | ' | ' |
Recorded investment in loans | $0 | $0 |