Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Net Sales:
NET SALES	$ 14,108	$ 10,489	$ 26,916	$ 20,074
Net Income	1,559	981	2,955	1,656
Location assets	55,839	44,329	55,839	44,329	47,967
Customer sales
Net Sales:
NET SALES	14,108	10,489	26,916	20,074
Intercompany sales
Net Sales:
NET SALES
United States (Corpus Christi)
Net Sales:
NET SALES	8,899	5,882	17,479	11,250
Net Income	703	378	1,588	656
Location assets	20,171	15,520	20,171	15,520
United States (Corpus Christi) | Customer sales
Net Sales:
NET SALES	8,899	5,882	17,438	11,250
United States (Corpus Christi) | Intercompany sales
Net Sales:
NET SALES			41
Europe (TPT)
Net Sales:
NET SALES	3,207	3,771	6,998	7,251
Net Income	35	379	292	641
Location assets	10,093	10,742	10,093	10,742
Europe (TPT) | Customer sales
Net Sales:
NET SALES	1,986	3,007	4,173	5,624
Europe (TPT) | Intercompany sales
Net Sales:
NET SALES	1,221	764	2,825	1,627
Asia (TMM)
Net Sales:
NET SALES	4,900	4,178	11,245	7,688
Net Income	740	194	1,127	349
Location assets	25,575	18,067	25,575	18,067
Asia (TMM) | Customer sales
Net Sales:
NET SALES	3,223	1,600	5,305	3,200
Asia (TMM) | Intercompany sales
Net Sales:
NET SALES	1,677	2,578	5,940	4,488
Inter-Company Eliminations
Net Sales:
NET SALES	(2,898)	(3,342)	(8,806)	(6,115)
Net Income	81	30	(52)	10
Location assets
Inter-Company Eliminations | Customer sales
Net Sales:
NET SALES
Inter-Company Eliminations | Intercompany sales
Net Sales:
NET SALES	$ (2,898)	$ (3,342)	$ (8,806)	$ (6,115)