Annual report pursuant to Section 13 and 15(d)

Geographic information (Details)

v3.7.0.1
Geographic information (Details) - USD ($)
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues – owned units $ 63,948,436 $ 52,610,182
Management, incentive, royalty and development fee revenue 8,465,584 7,921,584
United States:    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues – owned units 63,948,436 52,610,182
Management, incentive, royalty and development fee revenue 4,140,618 5,506,537
Net assets 3,899,627 15,167,639
Foreign:    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues – owned units 0 0
Management, incentive, royalty and development fee revenue 4,324,966 2,415,047
Net assets $ 3,478,911 $ 4,437,332