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Related Party - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014	Jul. 31, 2014
Related Party Transaction [Line Items]
Due from related party	$ 85,959		$ 85,959
Cost of products sold	794,285	$ 829,546	2,298,162	$ 2,624,950
Milestone China [Member]
Related Party Transaction [Line Items]
Gain (Loss) on earnings from joint venture	(123,083)	$ 29,428	(187,062)	$ 29,428
Equity method investment, ownership percentage		40.00%		40.00%		40.00%
Milestone China [Member] \| STA Instrument [Member]
Related Party Transaction [Line Items]
Cost of products sold			938,304
Milestone China [Member] \| Handpieces [Member]
Related Party Transaction [Line Items]
Cost of products sold			138,600
Wand Dental Inc [Member] \| Milestone China [Member] \| STA Instrument [Member]
Related Party Transaction [Line Items]
Cost of products sold			938,304
Wand Dental Inc [Member] \| Milestone China [Member] \| Handpieces [Member]
Related Party Transaction [Line Items]
Cost of products sold			150,600
Wand Dental Inc [Member] \| Milestone China [Member] \| Handpieces and STA Instrument [Member]
Related Party Transaction [Line Items]
Due from related party	1,088,904		1,088,904
Related Party Supplier [Member]
Related Party Transaction [Line Items]
Purchased inventories	447,817	$ 325,628	1,801,449	$ 2,069,546
Payable	427,231		427,231		$ 502,167
Milestone Medical Inc. [Member]
Related Party Transaction [Line Items]
Due from related party	623,881		623,881
Gain (Loss) on earnings from joint venture			(537,923)
Milestone Medical Inc. [Member] \| Bridge Loan
Related Party Transaction [Line Items]
Equity method investment, ownership percentage					49.98%
Line of credit agreement					$ 2,000,000
Line of credit agreement, interest rate					3.25%
Line of credit outstanding amount	2,000,000		2,000,000
Milestone Medical Inc. [Member] \| Bridge Loan \| Line of Credit [Member]
Related Party Transaction [Line Items]
Line of credit agreement	$ 2,500,000		$ 2,500,000