Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Net Sales:
Net Sales	$ 19,914	$ 11,401	$ 46,830	$ 31,475
Net Income	1,837	1,067	4,792	2,723
Location assets	59,844	43,991	59,844	43,991	47,967
Customer sales
Net Sales:
Net Sales	19,914	11,401	46,830	31,475
Intercompany sales
Net Sales:
Net Sales
United States (Corpus Christi)
Net Sales:
Net Sales	8,603	7,541	26,082	18,791
Net Income	447	717	2,036	1,372
Location assets	19,053	14,654	19,053	14,654
United States (Corpus Christi) | Customer sales
Net Sales:
Net Sales	8,592	7,079	26,030	18,329
United States (Corpus Christi) | Intercompany sales
Net Sales:
Net Sales	11	462	52	462
Europe (TPT)
Net Sales:
Net Sales	3,555	3,002	10,553	10,254
Net Income	293	269	585	911
Location assets	10,306	10,191	10,306	10,191
Europe (TPT) | Customer sales
Net Sales:
Net Sales	1,645	2,423	5,818	8,047
Europe (TPT) | Intercompany sales
Net Sales:
Net Sales	1,910	579	4,735	2,207
Asia (TMM)
Net Sales:
Net Sales	11,056	2,850	22,332	10,537
Net Income	1,195	93	2,322	442
Location assets	30,485	19,146	30,485	19,146
Asia (TMM) | Customer sales
Net Sales:
Net Sales	9,677	1,899	14,982	5,099
Asia (TMM) | Intercompany sales
Net Sales:
Net Sales	1,379	951	7,350	5,438
Inter-Company Eliminations
Net Sales:
Net Sales	(3,300)	(1,992)	(12,137)	(8,107)
Net Income	(98)	(12)	(151)	(2)
Location assets
Inter-Company Eliminations | Customer sales
Net Sales:
Net Sales
Inter-Company Eliminations | Intercompany sales
Net Sales:
Net Sales	$ (3,300)	$ (1,992)	$ (12,137)	$ (8,107)