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Financing Arrangements (Tables)
12 Months Ended
Jan. 31, 2015
Debt Disclosure [Abstract]  
Business Acquisition Debt rollforward [Table Text Block]
Pursuant to the acquisition of SBG and Integra as described in Note 5 Acquisitions of and Investments in Businesses and Technologies, the Company assumed liabilities including debts to former owners, a line of credit and long-term notes. Although there was a short-term working capital borrowing under Integra's line of credit, such borrowing and assumed debt was subsequently paid in full and the line of credit was closed. There was no debt outstanding at January 31, 2015.

The changes in the debt balance during the current fiscal year are shown below:
Debt Assumed
Acquired in Business Combination
 
Debt Assumed at Acquisition
 
Additional Borrowings
 
Debt Repayment
 
Debt Outstanding at January 31, 2015
Line of credit
Integra
 
$
1,465

 
$
2,127

 
$
(3,592
)
 
$

Long-term notes
Integra
 
9,876

 

 
(9,876
)
 

Notes with former owners and others
SBG
 
648

 

 
(648
)
 

 
 
 
$
11,989

 
$
2,127

 
$
(14,116
)
 
$

Future minimum lease payments under non-cancelable operating leases
Future minimum lease payments under non-cancelable operating leases are as follows:
 
 
2016
 
2017
 
2018
 
2019
 
2020
 
Thereafter
Minimum lease payments
 
$
1,913

 
$
1,616

 
$
1,407

 
$
1,200

 
$
1,224

 
$
1,327