Concentrations (Tables)

9 Months Ended

Sep. 30, 2018

Risks And Uncertainties [Abstract]

Summary of Net Revenue from Various Products

Revenue from the Company’s products for the three and nine months ended September 30, 2018 and 2017 are as follows (dollars in thousands):

	Three Months Ended										Nine Months Ended
	September 30,										September 30,
	2018				2017				2018					2017
Laser systems	$	7,055	64.5	%	$	6,335	58.6	%	$	20,678		62.5	%	$	21,026	61.3	%
Imaging systems		382	3.5	%		1,103	10.2	%		1,336		4.0	%		2,683	7.8	%
Consumables and other		1,902	17.4	%		1,751	16.2	%		6,239		18.9	%		5,494	16.0	%
Services		1,594	14.6	%		1,585	14.7	%		4,848		14.6	%		4,993	14.6	%
License fees and royalties		3	0.0	%		32	0.3	%		9		0.0	%		96	0.3	%
Total revenue	$	10,936	100.0	%	$	10,806	100.0	%	$	33,110		100.0	%	$	34,292	100.0	%