Note 11 - Goodwill and Other Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill [Table Text Block]
   

WSP

     

Cyvex and

Incon

   

Total

 

January 1, 2013

  $         7,986     $ 7,986  

Acquisitions (1)

    11,614               11,614  

December 31, 2013

  $ 11,614         7,986     $ 19,600  
Schedule of Intangible Assets other than Goodwill [Table Text Block]
   

December 31,

2013

   

December 31,

2012

   

Weighted

Average

Life (years)

 

Carrying value of intangible assets subject to amortization:

                       

Customer relationships and non-competes

  $ 5,930     $ 2,934          

Less accumulated amortization

    (613 )     (325 )     10  

Total intangible assets subject to amortization, net

  $ 5,317     $ 2,609          

Indefinite life intangible assets – trade names/secrets and other

    2,615       1,753          

Total intangible assets

  $ 7,932     $ 4,362          
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

2014

    663  

2015

    655  

2016

    654  

2017

    654  

Thereafter

    2,691  

Total estimated future amortization expense

  $ 5,317