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Property and Equipment, net
 12 Months Ended
Dec. 31, 2016
Property Plant And Equipment [Abstract]  
Property and Equipment, net

Note 6. Property and Equipment, net

Property and equipment, net at December 31, 2016 and 2015, consisted of the following (in thousands):

 

 

 

December 31,

 

 

 

2016

 

 

2015

 

Leasehold improvements

 

$

5,678

 

 

$

5,678

 

Machinery and equipment

 

 

1,925

 

 

 

1,603

 

Demonstration equipment

 

 

167

 

 

 

145

 

Furniture and fixtures

 

 

871

 

 

 

794

 

Computer equipment

 

 

603

 

 

 

591

 

Computer software

 

 

2,908

 

 

 

2,935

 

Consigned equipment

 

 

1,058

 

 

 

1,010

 

Construction-in-progress

 

 

62

 

 

 

219

 

Total property and equipment, gross

 

 

13,272

 

 

 

12,975

 

Accumulated depreciation and amortization

 

 

(10,287

)

 

 

(9,426

)

Total property and equipment, net

 

$

2,985

 

 

$

3,549

 

 

Depreciation and amortization expense related to property and equipment, net was $1.1 million, $1.1 million and $0.7 million for the years ended December 31, 2016, 2015 and 2014, respectively.  As part of the Company’s 2016 review of property and equipment, $0.2 million was recorded to impairment of long-lived assets on the consolidated statement of operations for construction-in-progress related to a deposit associated with a terminated agreement. No such impairment charges were incurred for the years ended December 31, 2015 and 2014.