Quarterly report pursuant to Section 13 or 15(d)

Commitments and Other - Additional Information (Detail)

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Commitments and Other - Additional Information (Detail)
1 Months Ended 3 Months Ended 6 Months Ended
Aug. 31, 2013
USD ($)
Jan. 31, 2010
USD ($)
Instruments
Jun. 30, 2015
USD ($)
Instruments
Jun. 30, 2014
USD ($)
Jun. 30, 2015
USD ($)
shares
Jun. 30, 2014
USD ($)
Long-term Purchase Commitment [Line Items]            
Additional payment received by using technology         2.50%  
Additional payment received by using other technology         5.00%  
Annual service fee $ 100,000          
Period of shareholder agreement 3 years          
Tricor Systems Inc [Member] | STA Instruments [Member]            
Long-term Purchase Commitment [Line Items]            
Issue of purchase order | Instruments   12,000        
Delivery period   3 years        
Purchase order   $ 5,261,640        
Wand Dental Inc [Member] | STA Instruments [Member]            
Long-term Purchase Commitment [Line Items]            
Issue of purchase order | Instruments     3,000      
Purchase order     $ 1,785,750      
New purchase commitment, description         Wand Dental Inc, a subsidiary of Milestone was assigned this commitment on October 1, 2015. As of June 30, 2015, this commitment was completed. In the second quarter of 2015,  
Advance made on purchase commitment order     482,000      
Director [Member]            
Long-term Purchase Commitment [Line Items]            
Options to purchase common stock issued | shares         8,333  
Director's royalty fees     $ 95,735 $ 97,917 $ 207,219 $ 202,144
Consulting fees         $ 0 $ 24,700