Inventories (Tables)

6 Months Ended

Jun. 30, 2014

Inventories [Abstract]

Schedule of inventories

Inventories consist of the following:

(in thousands)	June 30, 2014		December 31, 2013
Raw materials	$	196	$	249
Work-in-process		295		364
Finished goods		109		106
Total inventory	$	600	$	719