Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets (Details 1)

v2.4.0.6
Goodwill and Intangible Assets (Details 1) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Apr. 30, 2013
Jan. 31, 2013
Finite-lived intangible assets:    
Finite-lived intangible assets, Gross $ 47,764 $ 48,511
Accumulated Amortization (31,996) (31,197)
Finite-lived intangible assets, Net 15,768 17,314
Indefinite-lived intangible assets:    
Indefinite-lived intangible assets 200 200
Indefinite-lived intangible assets, Net 47,964 48,711
Intangible assets, net 15,968 17,514
Customer contracts [Member]
    
Finite-lived intangible assets:    
Weighted average remaining life (years) 6 years 1 month 6 days  
Finite-lived intangible assets, Gross 32,132 32,568
Accumulated Amortization (19,425) (18,756)
Finite-lived intangible assets, Net 12,707 13,812
Non-compete Agreements [Member]
    
Finite-lived intangible assets:    
Weighted average remaining life (years) 7 months 6 days  
Finite-lived intangible assets, Gross 2,701 2,769
Accumulated Amortization (2,356) (2,375)
Finite-lived intangible assets, Net 345 394
Completed Technology [Member]
    
Finite-lived intangible assets:    
Weighted average remaining life (years) 5 years 2 months 12 days  
Finite-lived intangible assets, Gross 11,219 11,448
Accumulated Amortization (8,581) (8,437)
Finite-lived intangible assets, Net 2,638 3,011
Trademarks and Other [Member]
    
Finite-lived intangible assets:    
Weighted average remaining life (years) 8 months 12 days  
Finite-lived intangible assets, Gross 1,712 1,726
Accumulated Amortization (1,634) (1,629)
Finite-lived intangible assets, Net 78 97
Trade Names [Member]
    
Indefinite-lived intangible assets:    
Indefinite-lived intangible assets $ 200 $ 200