Loans Receivable, net - Classified Loans Receivable (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross, excluding secured borrowings	$ 197,452	$ 204,218
Percentage of loan receivable in aggregate loan receivable	100.00%	100.00%
Satisfactory [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross, excluding secured borrowings	184,534	187,749
Percentage of loan receivable in aggregate loan receivable	93.50%	92.00%
OAEM [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross, excluding secured borrowings	4,205	81
Percentage of loan receivable in aggregate loan receivable	2.10%
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross, excluding secured borrowings	7,323	13,043
Percentage of loan receivable in aggregate loan receivable	3.70%	6.40%
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross, excluding secured borrowings	1,390	3,345
Percentage of loan receivable in aggregate loan receivable	0.70%	1.60%
Commercial Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross, commercial mortgage loans	168,789	176,022
Percentage of loan receivable in aggregate loan receivable	100.00%	100.00%
Commercial Mortgage Loans [Member] | Satisfactory [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross, commercial mortgage loans	156,760	159,994
Percentage of loan receivable in aggregate loan receivable	92.90%	90.90%
Commercial Mortgage Loans [Member] | OAEM [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross, commercial mortgage loans	3,920
Percentage of loan receivable in aggregate loan receivable	2.30%
Commercial Mortgage Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross, commercial mortgage loans	7,140	12,917
Percentage of loan receivable in aggregate loan receivable	4.20%	7.30%
Commercial Mortgage Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross, commercial mortgage loans	969	3,111
Percentage of loan receivable in aggregate loan receivable	0.60%	1.80%
SBA 7(a) Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
SBA 7(a) loans receivable, gross, excluding secured borrowings	28,663	28,196
Percentage of loan receivable in aggregate loan receivable	100.00%	100.00%
SBA 7(a) Loans [Member] | Satisfactory [Member]
Financing Receivable, Recorded Investment [Line Items]
SBA 7(a) loans receivable, gross, excluding secured borrowings	27,774	27,755
Percentage of loan receivable in aggregate loan receivable	96.90%	98.50%
SBA 7(a) Loans [Member] | OAEM [Member]
Financing Receivable, Recorded Investment [Line Items]
SBA 7(a) loans receivable, gross, excluding secured borrowings	285	81
Percentage of loan receivable in aggregate loan receivable	1.00%	0.30%
SBA 7(a) Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
SBA 7(a) loans receivable, gross, excluding secured borrowings	183	126
Percentage of loan receivable in aggregate loan receivable	0.60%	0.40%
SBA 7(a) Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
SBA 7(a) loans receivable, gross, excluding secured borrowings	$ 421	$ 234
Percentage of loan receivable in aggregate loan receivable	1.50%	0.80%