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Acquisitions of and Investments in Businesses and Technologies (Tables)
 12 Months Ended
Jan. 31, 2018
Business Combinations [Abstract]  
Schedule of Changes in Fair Value of Liability for Consideration Changes in the fair value of the liability for acquisition-related contingent consideration are as follows:
 
 
For the years ended January 31,
 
 
2018
 
2017
Beginning balance
 
$
1,741

 
$
2,059

Fair value of contingent consideration acquired
 
1,256

 
—

Change in fair value of the liability
 
457

 
36

Contingent consideration earn-out paid
 
(408
)
 
(354
)
Ending balance
 
$
3,046

 
$
1,741

 
 
 
 
 
Classification of liability in the Consolidated balance sheet
 
 
 
 
Accrued Liabilities
 
$
1,036

 
$
345

Other Liabilities, long-term
 
2,010

 
1,396

Balance at January 31, 2018
 
$
3,046

 
$
1,741
Changes in the net carrying value of the investment in SST Changes in the net carrying value of the Company's equity investments was as follows:
 
 
As of January 31,
 
 
2018
 
2017
Balance at beginning of year
 
$
2,371

 
$
2,805

Purchase price of equity investment
 
—

 
135

(Loss) income from equity investment
 
(42
)
 
(72
)
Amortization of intangible assets
 
(320
)
 
(497
)
Impairment to equity investment
 
(72
)
 
—

Balance at end of year
 
$
1,937

 
$
2,371