Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Related Party Transactions (Details Textual)

v3.19.1
Note 12 - Related Party Transactions (Details Textual)
1 Months Ended 3 Months Ended 5 Months Ended 12 Months Ended
Feb. 28, 2019
USD ($)
$ / shares
shares
Dec. 31, 2018
USD ($)
Jan. 31, 2017
Aug. 31, 2016
Jun. 30, 2014
USD ($)
Mar. 31, 2019
USD ($)
Mar. 31, 2018
USD ($)
Nov. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Director of Clinical Affairs [Member]                  
Royalty Expense           $ 91,490 $ 85,769    
Professional Fees           39,000 68,751    
Accounts Payable, Related Parties   $ 364,000       309,000     $ 364,000
Milestone China [Member]                  
Capitalized Contract Cost, Net, Total   50,000       24,602     50,000
Financing Receivable, after Allowance for Credit Loss, Total   2,800,000             2,800,000
Account Receivables, Related Party, Monthly Payment               $ 200,000  
Accounts Receivable, Related Party, Balloon Payment to be Paid   1,425,000              
Proceeds from Collection of Finance Receivables           950,000      
Inventory Adjustments, Total   1,250,000             1,250,000
Equity Method Investments         $ 1,000,000 0      
Long-term Purchase Commitment, Minimum Quantity Required         772        
Equity Method Investment, Ownership Percentage         40.00%        
United Systems [Member]                  
Capitalized Contract Cost, Net, Total   686,365             686,365
Wand Dental Inc [Member]                  
Deferred Revenue, Current, Total   342,540       342,540     342,540
Manufacturing Agreement for Handpieces [Member]                  
Related Party Transaction, Purchases from Related Party           338,000 351,000    
Due to Related Parties, Total   $ 1,000,000       1,200,000     1,000,000
Consulting Services [Member]                  
Consulting Services Agreement, Term       3 years          
Related Party Transaction, Expenses from Transactions with Related Party           25,000 25,000    
Consulting Services [Member] | United Systems [Member]                  
Stock Issued During Period, Shares, Issued for Services | shares 285,714                
Shares Issued, Price Per Share | $ / shares $ 0.35                
Stock Issued During Period, Value, Issued for Services $ 100,000                
Distributor Agreement to Milestone China [Member] | United Systems [Member]                  
Revenue from Related Parties                 $ 750,000
Consultant [Member] | Innovest S.p.A. [Member]                  
Consulting Services Agreement, Term     1 year            
Related Party Transaction, Expenses from Transactions with Related Party           $ 20,000 $ 20,000