Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies - Additional Information (Detail)

v3.4.0.3
Significant Accounting Policies - Additional Information (Detail)
3 Months Ended
Mar. 31, 2016
USD ($)
Customer
Supplier
Dec. 31, 2015
USD ($)
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]    
Number of dental distributor with guaranteed rights of returns | Customer 2  
Revenue deferred under guaranteed rights of return arrangements $ 17,687 $ 14,215
Inventory reserve 60,660 60,660
Accounts payable and accrued expenses for key suppliers 986,744 969,787
Uninsured portion of cash balance $ 3,117,647 4,833,355
Supplier Concentration Risk [Member]    
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]    
Number of key suppliers | Supplier 4  
Accounts payable and accrued expenses for key suppliers $ 0 91,138
Guaranteed Rights of Return [Member]    
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]    
Revenue deferred under guaranteed rights of return arrangements $ 17,687 $ 14,215