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