Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.1
Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details Textual) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Cash Equivalents, at Carrying Value, Total $ 0   $ 0
Accounts Receivable, Allowance for Credit Loss, Ending Balance 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 $ 14,333,000   $ 13,609,000
Advertising Expense $ 439,436 $ 410,637  
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    
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