Revenues from sales by product for the years ended December 31, 2013 and 2012 are as follows (in thousands): (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Revenues from sales productwise
HITOX	$ 14,004	$ 18,453
ALUPREM	14,662	14,208
BARTEX / BARYPREM	7,882	7,401
HALTEX / OPTILOAD	3,427	3,662
TIOPREM	1,817	1,799
SR	3,527	10,410
OTHER	702	720
Total	$ 46,021	$ 56,653
HITOX percentage to sales revenue	30.00%	33.00%
ALUPREM percentage to sales revenue	32.00%	27.00%
BARTEX / BARYPREM percentage to sales revenue	17.00%	11.00%
HALTEX / OPTILOAD percentage to sales revenue	8.00%	7.00%
TIOPREM percentage to sales revenue	4.00%	3.00%
SR percentage to sales revenue	8.00%	18.00%
OTHER percentage to sales revenue	1.00%	1.00%
Total percentage to sales revenue	100.00%	100.00%