Annual report pursuant to Section 13 and 15(d)

Significant Accounting Policies - Additional Information (Detail)

v2.4.0.8
Significant Accounting Policies - Additional Information (Detail) (USD $)
 12 Months Ended
Dec. 31, 2013
Supplier
Segment
Customer
Dec. 31, 2012
Supplier
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]    
Number of dental distributor with guaranteed rights of returns 2  
Cash and cash equivalents with original maturity period Three months or less  
Amount of cash remaining that was restricted pursuant to the common stock $ 0 $ 61,763
Cash reserved for development 1,000,000  
Allowance for doubtful accounts 128,000 129,000
Inventory reserve 31,463 253,067
Number of business operating segment 1  
Number of dental distributors with guaranteed rights of return 2  
Impairment losses 0 0
Advertising and marketing expense 895,078 49,133
Uncertain income tax position, unrecognized Less than a 50%  
Number of key suppliers 4 4
Accounts payable and accrued expenses for key suppliers 146,284 99,000
Uninsured portion of cash balance 16,026,510 9,737,730
Guaranteed Rights of Return [Member]
    
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]    
Revenue deferred under guaranteed rights of return arrangements $ 18,839 $ 27,812
Leasehold Improvements [Member]
    
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]    
Estimated useful lives of assets 5 years  
Minimum [Member]
    
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]    
Estimated useful lives of assets 3 years  
Maximum [Member]
    
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]    
Estimated useful lives of assets 7 years