Investment in Unconsolidated Subsidiaries - Additional Information (Detail)	1 Months Ended		3 Months Ended
	Jan. 31, 2016 USD ($) Instruments $ / Instruments	Jun. 30, 2014 USD ($) Instruments $ / shares	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)
Schedule Of Equity Method Investments [Line Items]
Loss in equity investments			$ (269,726)	$ (357,701)
Cost of products sold			$ 1,368,190	933,148
Advanced Ocular Sciences SA [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method investment, ownership percentage			25.00%
Advances for marketing and strategy planning					$ 78,798
Milestone China [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		40.00%
Investment in joint venture		$ 1,000,000	$ 0	445,325
Issue of purchase order | Instruments	308	772
Distributor price per instrument | $ / shares		$ 1,295
Loss in equity investments			(164,837)	$ 96,674
Suspended losses on investment			177,291
Purchase order	$ 400,000
Purchase order value per instrument | $ / Instruments	1,296
Additional investment in joint venture	$ 165,000
Deferred profit included in Statements			(174,670)
Milestone China [Member] | STA Instrument [Member]
Schedule Of Equity Method Investments [Line Items]
Cost of products sold			1,000,000
Accounts receivable			$ 825,340