Quarterly report pursuant to Section 13 or 15(d)

Management's Agreements (Details)

v2.4.0.6
Management's Agreements (Details) (USD $)
 12 Months Ended
Nov. 30, 2012
Nov. 30, 2012
Minimum [Member]
Nov. 30, 2011
Corridor Infra Trust Management [Member]
Agreements (Textual) [Abstract]      
Quarterly management fee percentage on the value of company's average monthly managed assets     0.25%
Annual management fee percentage on the value of company's average monthly managed assets     1.00%
Quarterly incentive fee on increase in distributions paid     10.00%
Threshold distribution per quarter     $ 0.125
Annually rate of fee percentage on the value of company's average daily managed assets 0.04%    
Administrator minimum annual fee   $ 30,000  
Monthly fee payable to accounting services provider 24,000    
Company net asset, year one 50,000,000    
Annual rate of monthly fee payable to accounting services provider on company assets, year one 0.0125%    
Company net asset, year two 200,000,000    
Annual rate of monthly fee payable to accounting services provider on company assets, year two 0.0075%    
Company net asset, year three $ 250,000,000    
Annual rate of monthly fee payable to accounting services provider on company assets, year three 0.0025%