Significant Customers (Tables)

9 Months Ended

Sep. 30, 2012

Significant Customers [Abstract]

Sales by product and by geographical region

	Three Months Ended September 30,					Nine Months Ended September 30,
	2012		2011			2012		2011
Instruments	$	368,036	$	416,582	Instruments	$	1,495,772	$	2,381,115
Handpieces		1,717,201		1,328,167	Handpieces		4,756,482		4,188,135
Other		44,004		1,127	Other		125,320		66,733
	$	2,129,241	$	1,745,876		$	6,377,574	$	6,635,983
United States	$	1,342,798	$	849,344	United States	$	3,256,933	$	3,527,595
Canada		133,605		163,171	Canada		470,451		468,786
Other Foreign		652,838		733,361	Other Foreign		2,650,189		2,639,602
	$	2,129,241	$	1,745,876		$	6,377,574	$	6,635,983