Discontinued Operations - Additional Information (Detail) (USD $)	9 Months Ended		9 Months Ended
	Sep. 30, 2013 SecurityLoan	Dec. 31, 2012	Sep. 30, 2013 Discontinued Operations Related to Ownership Interest in Mortgage Banking [Member] Office	Aug. 31, 2012 Discontinued Operations Related to Ownership Interest in Mortgage Banking [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Company divested ownership interest				51.00%
Number of operating offices			21
Stock Purchase Agreement price			$ 5,200,000
Holdings received consideration in cash			321,000
Gross consideration from sale of investment			521,000
Consideration received as earn out payment			200,000
Consideration received as promissory note			4,700,000
Percentage of losses or damages arising from loan buyback	51.00%
Shareholder liability percentage of loss or damage			49.00%
Loss incurred or recognized from loan buy backs			52,000
Number of loan repurchase under inception of stock purchase agreement	2
Promissory note due period			5 years
Promissory note payment due one year			35.00%
Promissory note payment due two year			25.00%
Promissory note payment due three year			20.00%
Promissory note payment due four year			15.00%
Promissory note payment due five year			5.00%
Promissory note rate of interest			0.00%
Expected return of capital	5,200,000
Acquire undistributed earnings	51.00%
Additional funding capacity of mortgage loans			10,000,000
Mortgage warehouse lines of credit	1,600,000	7,500,000
Bank own maximum participation interest on risk based capital at any time	80.00%
Outstanding loan balance	0
Loss on disposal of discontinued operations	$ 746,000