XML 47 R34.htm IDEA: XBRL DOCUMENT v3.8.0.1
PURCHASED INTANGIBLE ASSETS - Goodwill and Finite Lived Intangible Assets (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 31, 2017
Oct. 31, 2017
Oct. 31, 2016
Jan. 31, 2017
Finite-Lived Intangible Assets        
Intangible Assets, Gross Amount $ 11,612 $ 11,612    
Accumulated amortization 4,207 4,207    
Intangible Assets - Net Amount 7,405 7,405   $ 8,181
Indefinite-Lived Intangible Assets        
Goodwill 34,913 34,913 $ 34,913 34,913
Impairment loss     1,979  
TRC        
Indefinite-Lived Intangible Assets        
Estimated Possible Goodwill Impairment Loss 5,500      
APC        
Indefinite-Lived Intangible Assets        
Impairment loss     $ 2,000  
GPS        
Indefinite-Lived Intangible Assets        
Goodwill 18,500 18,500   18,500
TRC        
Indefinite-Lived Intangible Assets        
Goodwill 14,400 14,400   14,400
APC        
Indefinite-Lived Intangible Assets        
Goodwill 2,000 $ 2,000   2,000
Trade Name | GPS/TRC        
Finite-Lived Intangible Assets        
Finite-Lived Intangible Assets - Estimated Useful Life   15 years    
Finite Lived Intangible Assets - Gross Amount 8,142 $ 8,142    
Accumulated amortization 3,221 3,221    
Finite Lived Intangible Assets - Net Amount 4,921 $ 4,921   5,328
Process certifications | TRC        
Finite-Lived Intangible Assets        
Finite-Lived Intangible Assets - Estimated Useful Life   7 years    
Finite Lived Intangible Assets - Gross Amount 1,897 $ 1,897    
Accumulated amortization 520 520    
Finite Lived Intangible Assets - Net Amount 1,377 1,377   1,581
Customer Relationships | TRC/APC        
Finite-Lived Intangible Assets        
Finite Lived Intangible Assets - Gross Amount 1,346 1,346    
Accumulated amortization 423 423    
Finite Lived Intangible Assets - Net Amount 923 $ 923   1,072
Customer Relationships | TRC/APC | Minimum        
Finite-Lived Intangible Assets        
Finite-Lived Intangible Assets - Estimated Useful Life   4 years    
Customer Relationships | TRC/APC | Maximum        
Finite-Lived Intangible Assets        
Finite-Lived Intangible Assets - Estimated Useful Life   10 years    
Other intangibles        
Finite-Lived Intangible Assets        
Finite Lived Intangible Assets - Gross Amount 46 $ 46    
Accumulated amortization 43 43    
Finite Lived Intangible Assets - Net Amount $ 3 $ 3   $ 19