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Investments in Retirement Community Limited Partnerships - Additional Information (Detail) (USD $)
Feb. 01, 2014
Nov. 02, 2013
Investment [Line Items]    
Joint venture engaged 50.00%  
Walden Woods [Member]
   
Investment [Line Items]    
Joint venture engaged 31.30%  
Amount invested in retirement community $ 0 $ 0
CRF III, Ltd [Member]
   
Investment [Line Items]    
Joint venture engaged 48.50%  
Amount invested in retirement community $ 428,533 $ 467,934