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Segment Reporting (Tables)
6 Months Ended
Jun. 30, 2012
Schedule of Segment Reporting Information, by Segment [Table Text Block]

 

Three Months Ended

 

Six Months Ended

 

June 30,

 

June 30,

 

2012

 

2011

 

2012

 

2011

Revenues

 

 

 

 

 

 

 

 

 

 

 

Heavy Duty Diesel Systems

$

 11,002

 

$

   9,571

 

$

 23,603

 

$

 19,029

Catalyst

 

6,431

 

 

3,800

 

 

12,535

 

 

8,555

Corporate

 

 

 

 

 

 

 

Eliminations (1)

 

(709)

 

 

(1,839)

 

 

(2,415)

 

 

(2,268)

Total

$

 16,724

 

$

 11,532

 

$

 33,723

 

$

25,316

Income (loss) from operations

 

 

 

 

 

 

 

 

 

 

 

Heavy Duty Diesel Systems

$

91

 

$

 (620)

 

$

(273)

 

$

(289)

Catalyst

 

(679)

 

 

(508)

 

 

(1,011)

 

 

(894)

Corporate

 

(1,354)

 

 

(2,294)

 

 

(3,042)

 

 

(4,128)

Eliminations (1)

 

63

 

 

(91)

 

 

22

 

 

(108)

Total

$

 (1,879)

 

$

(3,513)

 

$

 (4,304)

 

$

 (5,419)

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]

 

Three Months Ended

 

Six Months Ended

 

June 30,

 

June 30,

 

2012

 

2011

 

2012

 

2011

United States

$

7,531

 

$

 3,892

 

$

13,530

 

$

9,735

Canada

 

6,582

 

 

5,550

 

 

11,505

 

 

11,314

United Kingdom

 

1,098

 

 

238

 

 

5,419

 

 

462

Sweden

 

1,513

 

 

1,852

 

 

3,269

 

 

3,805

Total

$

16,724

 

$

11,532

 

$

33,723

 

$

25,316