15. Foreign Customer Sales (Tables)

12 Months Ended

Dec. 31, 2016

Risks and Uncertainties [Abstract]

Schedule of foreign customer sales

		Year Ended December 31,
(In thousands)		2016		2015
Canada, Mexico & South/Central America	$	2,608	$	3,894
Pacific Rim		2,417		2,906
Europe, Africa & Middle East		9,595		8,461
Total Foreign Sales	$	14,620	$	15,261