Accrued Liabilities (Tables)
 12 Months Ended
Dec. 31, 2015
Payables and Accruals [Abstract]  
Schedule of Accrued Current Liabilities
Accrued current liabilities consisted of the following (in thousands):
 
 
At December 31,
 
2015
 
2014
 
 
 
 
Accrued sales commissions and incentives
$
1,005

 
$
91

Accrued warranty expense
314

 
81

Accrued legal and professional fees
151

 
91

Accrued payroll and related benefits
1,243

 
541

Separation accrual
96

 
130

Accrued income taxes
26

 
—

Accrued other taxes
65

 
8

Accrued other expenses
17

 
20

Total accrued liabilities
$
2,917

 
$
962