Post-effective amendment to a registration statement that is not immediately effective upon filing

Commitments and contingencies (Operating Leases) (Details)

v2.4.0.8
Commitments and contingencies (Operating Leases) (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Net Amount    
Accounts receivable, net $ 2,923,754 $ 3,393,933
Operating Lease [Member]
   
Rental Expense    
2013 6,104,800  
2014 5,963,009  
2015 5,972,152  
2016 5,639,513  
2017 5,548,726  
Thereafter 50,440,896  
Total 79,669,096  
Rental Income    
2013 (1,127,152)  
2014 (1,075,083)  
2015 (1,063,785)  
2016 (844,061)  
2017 (864,156)  
Thereafter (3,626,551)  
Total (8,600,788)  
Net Amount    
2013 4,977,648  
2014 4,887,926  
2015 4,908,367  
2016 4,795,452  
2017 4,684,570  
Thereafter 46,814,345  
Total 71,068,308  
Landlord contribution towards construction 1,036,900  
Accounts receivable, net 153,332 210,458
Rent expense 3,795,248 3,051,896
Percentage rent 424,181 1,405,577
Rental income related to subleases $ 566,433 $ 391,983