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Property and Equipment, net
9 Months Ended
Sep. 30, 2019
Property and Equipment, net [Abstract]  
Property and Equipment, net
Note 5
Property and Equipment, net:
 
Property and equipment consist of:
 
  
September 30, 2019
  
December 31, 2018
 
Lasers placed-in-service
 
$
19,647
  
$
18,515
 
Equipment, computer hardware and software
  
147
   
168
 
Furniture and fixtures
  
125
   
124
 
Leasehold improvements
  
26
   
26
 
   
19,945
   
18,833
 
Accumulated depreciation and amortization
  
(15,377
)
  
(13,532
)
Property and equipment, net
 
$
4,568
  
$
5,301
 

Depreciation and related amortization expense was $637 and $850 for the three months ended September 30, 2019 and 2018, respectively; and $2,079 and $2,762 for the nine months ended September 30, 2019 and 2018, respectively.