Quarterly report pursuant to Section 13 or 15(d)

Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details Textual)

v3.19.2
Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Cash Equivalents, at Carrying Value, Total $ 0   $ 0   $ 0
Accounts Receivable, Allowance for Credit Loss, Ending Balance 0   0   0
Goodwill, Impairment Loss     0 $ 0  
Impairment of Long-Lived Assets Held-for-use     $ 0 0  
Franchise Monthly Marketing Fee Gross Sales Percentage     2.00%    
Franchise Royalty Gross Sales Percentage     7.00%    
Regional Developers Royalty Sales Generated by Franchises Percentage     3.00%    
Contract with Customer, Liability, Total 15,350,000   $ 15,350,000   $ 13,609,000
Advertising Expense 656,476 $ 471,056 $ 1,095,913 $ 881,694  
State and Local Jurisdiction [Member]          
Open Tax Year     2014 2015 2016 2017 2018 2019    
Domestic Tax Authority [Member]          
Open Tax Year     2015 2016 2017 2018 2019    
Regional Development Agreement [Member]          
Contract with Customer, Liability, Total $ 290,000   $ 290,000    
Computer Software, Intangible Asset [Member]          
Finite-Lived Intangible Asset, Useful Life     5 years    
Development Rights [Member]          
Finite-Lived Intangible Asset, Useful Life     7 years    
Customer Relationships [Member]          
Finite-Lived Intangible Asset, Useful Life     2 years    
Minimum [Member]          
Property, Plant and Equipment, Useful Life     3 years    
Minimum [Member] | Franchise Rights [Member]          
Finite-Lived Intangible Asset, Useful Life     4 years    
Maximum [Member]          
Property, Plant and Equipment, Useful Life     7 years    
Maximum [Member] | Franchise Rights [Member]          
Finite-Lived Intangible Asset, Useful Life     8 years