Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies - Additional Information (Detail)

v3.5.0.2
Significant Accounting Policies - Additional Information (Detail)
6 Months Ended
Jun. 30, 2016
USD ($)
Customer
Dec. 31, 2015
USD ($)
Accounting Policies [Abstract]    
Number of dental distributor with guaranteed rights of returns | Customer 2  
Revenue deferred under guaranteed rights of return arrangements $ 0 $ 14,215
Deferred revenue 0  
Inventory reserve 0 59,200
Inventory, net 0  
Uninsured portion of cash balance $ 5,207,444 $ 4,833,355