Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets (Details)

v2.4.0.6
Intangible Assets (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Dec. 31, 2012
Intangible assets      
Net amount $ 965   $ 1,002
Product formulations
      
Intangible assets      
Gross carrying amount 1,763   1,763
Accumulated amortization 798   761
Net amount 965   1,002
Amortization expense for intangible assets 37 37  
Estimated amortization expense      
2013 149    
2014 149    
2015 149    
2016 91    
2017 $ 91    
Minimum | Product formulations
      
Intangible assets      
Estimated useful lives 9 years    
Maximum | Product formulations
      
Intangible assets      
Estimated useful lives 15 years