Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0000946454 (http://www.sec.gov/CIK)

Inventory Disclosure [Abstract]	Period [Axis]
	2016-01-01 - 2016-12-31
Inventory Disclosure [Abstract]
Schedule of Inventories	Inventories consist of the following:       December 31, 2016     December 31, 2015       (in thousands)   Raw materials and components   $ 1,341     $ 1,351   Work in process     247       190   Finished goods     4,975       5,651       $ 6,563     $ 7,192