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Summary of Accounting Policies - Additional Information (Detail) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Jul. 31, 2014
Dec. 31, 2014
Sep. 30, 2015
Sep. 30, 2014
Milestone Scientific Inc. Poland SP z.o.o [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Ownership percentage attributable to Milestone 75.00%      
Advanced Cosmetic System Inc        
Summary Of Significant Accounting Policies [Line Items]        
Ownership percentage attributable to Milestone     70.00%  
Equity method investment, ownership percentage 50.00%      
Milestone China Investment In Advanced Cosmetic System I N C        
Summary Of Significant Accounting Policies [Line Items]        
Minority interest recorded as noncontrolling interest     30.00%  
Equity method investment, ownership percentage 50.00%      
Capital contributions $ 900,000      
Milestone China [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Equity method investment, ownership percentage 40.00%     40.00%
Investment in joint venture $ 1,000,000 $ 348,651 $ 161,588 $ 1,000,000
Percentage of revenue recognized on shipment     60.00%  
Milestone Medical Inc. [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Equity method investment, ownership percentage     49.98%  
Capital contributions   447,750    
Contribution of Milestone in joint venture     $ 1,500,000  
Investment in joint venture   $ 888,720 $ 0