Annual report pursuant to Section 13 and 15(d)

Basis of Presentation - Additional Information (Detail)

v2.4.0.8
Basis of Presentation - Additional Information (Detail) (USD $)
1 Months Ended 12 Months Ended
Feb. 28, 2014
Dec. 31, 2013
Agreement
Dec. 31, 2012
Dec. 31, 2011
May 24, 2012
Dec. 31, 2010
Mar. 04, 2014
Subsequent Event
Jan. 17, 2014
Subsequent Event
Basis Of Presentation [Line Items]                
Sales to Henry Schein as a percentage of net sales   5.00% 3.00% 19.00%        
Working capital   $ 3,900,000            
Cash and cash equivalents   1,440,000 2,543,000 3,307,000   1,694,000    
Net accounts receivable   11,127,000 11,680,000          
Lines of credit remaining borrowing capacity   3,400,000            
Number revolving credit facility agreements   2            
Maximum stock offering price               12,500,000
Annualized reduction in payroll and payroll related expenses (unaudited) (1,300,000)              
Lines of credit maximum borrowing capacity         $ 8,000,000   $ 5,000,000