Loans Receivable - Schedule of Credit Exposures by Internally Assigned Grades (Detail) (USD $)
In Thousands, unless otherwise specified

Jun. 30, 2014

Dec. 31, 2013

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

$ 239,360

$ 238,322

Pass [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

223,733

220,964

Special Mention [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

1,574

1,682

Substandard [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

14,053

15,676

Doubtful [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

Loss [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

Residential Real Estate, Multi-Family [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

42,154

37,857

Residential Real Estate, Multi-Family [Member] | Pass [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

42,154

37,857

Residential Real Estate, Multi-Family [Member] | Special Mention [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

Residential Real Estate, Multi-Family [Member] | Substandard [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

Residential Real Estate, Multi-Family [Member] | Doubtful [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

Residential Real Estate, Multi-Family [Member] | Loss [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

Residential Real Estate, Construction [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

40,590

44,327

Residential Real Estate, Construction [Member] | Pass [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

38,256

40,874

Residential Real Estate, Construction [Member] | Special Mention [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

341

382

Residential Real Estate, Construction [Member] | Substandard [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

1,993

3,071

Residential Real Estate, Construction [Member] | Doubtful [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

Residential Real Estate, Construction [Member] | Loss [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

Commercial Real Estate [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

91,310

77,366

Commercial Real Estate [Member] | Pass [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

78,056

63,532

Commercial Real Estate [Member] | Special Mention [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

1,222

1,283

Commercial Real Estate [Member] | Substandard [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

12,032

12,551

Commercial Real Estate [Member] | Doubtful [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

Commercial Real Estate [Member] | Loss [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

Commercial Real Estate, Construction [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

10,235

25,971

Commercial Real Estate, Construction [Member] | Pass [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

10,235

25,971

Commercial Real Estate, Construction [Member] | Special Mention [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

Commercial Real Estate, Construction [Member] | Substandard [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

Commercial Real Estate, Construction [Member] | Doubtful [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

Commercial Real Estate, Construction [Member] | Loss [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

Commercial [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

55,071

52,801

Commercial [Member] | Pass [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

55,032

52,730

Commercial [Member] | Special Mention [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

Commercial [Member] | Substandard [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

Commercial [Member] | Doubtful [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable

Commercial [Member] | Loss [Member]

Financing Receivable, Recorded Investment [Line Items]

Financing Receivable