Inventories consisted of the following at December 31, 2016 and 2015.

 

 

December 31, 2016

 

 

December 31, 2015

 

 

(in thousands)

 

Raw materials

$

513

 

 

$

594

 

Work-in-process

 

728

 

 

 

791

 

 

 

1,241

 

 

 

1,385

 

Less: allowance

 

(60

)

 

 

(60

)

Total inventories

$

1,181

 

 

$

1,325