Sales by Product (Tables)

12 Months Ended

Dec. 31, 2014

Revenue Recognition [Abstract]

Revenue from External Customers by Products and Services

Revenues from sales by product for the years ended December 31, 2014 and 2013 are as follows (in thousands):

Product	2014				2013				Variance
ALUPREM	$	18,516	39	%	$	14,662	32	%	$	3,854		26	%
HITOX		13,265	28	%		14,004	30	%		(739	)	-5	%
BARTEX / BARYPREM		8,848	20	%		7,882	17	%		966		12	%
HALTEX / OPTILOAD		3,182	7	%		3,427	8	%		(245	)	-7	%
TIOPREM		856	2	%		1,817	4	%		(961	)	-53	%
SR		1,365	3	%		3,527	8	%		(2,162	)	-61	%
OTHER		698	1	%		702	1	%		(4	)	-1	%
Total	$	46,730	100	%	$	46,021	100	%	$	709		2	%