Annual report pursuant to Section 13 and 15(d)

Note P - Concentration (Details Textual)

v3.19.1
Note P - Concentration (Details Textual)
3 Months Ended 12 Months Ended
Sep. 30, 2017
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Accounts Receivable, Gross   $ 2,078,457  
Allowance for Doubtful Accounts Receivable, Ending Balance   10,000 $ 10,000
Milestone China [Member]      
Accounts Receivable, Gross   1,917,990  
Allowance for Doubtful Accounts Receivable, Ending Balance   1,817,990  
Provision for Doubtful Accounts   $ 1,250,928  
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member]      
Number of Customers 2   2
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member] | Two Customers [Member]      
Concentration Risk, Percentage   53.00% 70.00%
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member] | Customer One [Member]      
Concentration Risk, Percentage   43.00% 51.00%
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member] | Customer Two [Member]      
Concentration Risk, Percentage   10.00% 19.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Two Customers [Member]      
Concentration Risk, Percentage   63.00%  
Accounts Receivable, Gross   $ 82  
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer One [Member]      
Concentration Risk, Percentage   49.00%  
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer Two [Member]      
Concentration Risk, Percentage   33.00%  
Accounts Receivable [Member] | Customer Concentration Risk [Member] | One Customer [Member]      
Concentration Risk, Percentage     78.00%
Accounts Receivable, Gross     $ 2,555,000