Segment Information (Detail Textuals)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Number of geographic segments	3
Sales Revenue | BASF Corporation
Segment Reporting Information [Line Items]
Percentage of total consolidated sales revenue	17.00%	14.00%
Sales Revenue | Tioxide Europe Ltd
Segment Reporting Information [Line Items]
Percentage of total consolidated sales revenue	16.00%
U.S. operation | Sales Revenue | Customer one
Segment Reporting Information [Line Items]
Percentage of total consolidated sales revenue	29.00%	23.00%
European operation | Sales Revenue
Segment Reporting Information [Line Items]
Percentage of total consolidated sales revenue		30.00%
European operation | Sales Revenue | Customer one
Segment Reporting Information [Line Items]
Percentage of total consolidated sales revenue	10.00%	11.00%
European operation | Sales Revenue | Customer two
Segment Reporting Information [Line Items]
Percentage of total consolidated sales revenue		11.00%
Asian Operation | Sales Revenue | Customer one
Segment Reporting Information [Line Items]
Percentage of total consolidated sales revenue	57.00%	21.00%