CONCENTRATIONS - Additional Information (Detail)	9 Months Ended	12 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2012 HSIC worldwide [Member]	Sep. 30, 2011 HSIC worldwide [Member]	Sep. 30, 2012 HSIC worldwide [Member]	Sep. 30, 2011 HSIC worldwide [Member]	Sep. 30, 2012 Waterlase systems [Member]	Sep. 30, 2011 Waterlase systems [Member]	Sep. 30, 2012 Waterlase systems [Member]	Sep. 30, 2011 Waterlase systems [Member]	Sep. 30, 2012 Diode systems [Member]	Sep. 30, 2011 Diode systems [Member]	Sep. 30, 2012 Diode systems [Member]	Sep. 30, 2011 Diode systems [Member]	Sep. 30, 2012 Consumable services and warranty contracts [Member]	Sep. 30, 2011 Consumable services and warranty contracts [Member]	Sep. 30, 2012 Consumable services and warranty contracts [Member]	Sep. 30, 2011 Consumable services and warranty contracts [Member]	Sep. 30, 2012 Imaging system [Member]	Sep. 30, 2011 Imaging system [Member]	Sep. 30, 2012 Imaging system [Member]	Sep. 30, 2011 Imaging system [Member]
Concentrations [Line Items]
Percentage of net revenue							67.00%	63.00%	64.00%	57.00%	7.00%	17.00%	9.00%	21.00%	21.00%	19.00%	22.00%	20.00%	5.00%	1.00%	5.00%	0.00%
Percentage of sales concentration to one customer			5.00%	14.00%	4.00%	24.00%
Percentage of sales concentration generated by non-cancellable prepaid purchase orders				49.00%		68.00%
Maximum account receivable with individual customer	Less than 10%	Less than 10%