Investments in Retirement Community Limited Partnerships - Additional Information (Detail) (USD $)	May 04, 2013	Nov. 03, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of interest in investments in retirement community limited partnerships	50.00%
Walden Woods South LLC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of interest in investments in retirement community limited partnerships	31.90%
Amount invested in retirement community	$ 0	$ 0
CRF III Ltd [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of interest in investments in retirement community limited partnerships	48.50%
Amount invested in retirement community	$ 628,083	$ 757,924