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Schedule II Allowance for bad debt (Tables)

12 Months Ended

Jan. 31, 2018

Valuation and Qualifying Accounts Disclosure [Line Items]

Summary of Valuation Allowance [Table Text Block]

(In thousands)	Balance at beginning of period	Charged to costs and expenses	Deductions from reserves (1)	Charged to other accounts (2)	Balance at end of period
Year Ended January 31, 2018
Allowance for possible losses in collection of trade receivables	$305	$247	$135	$52	$469
Year Ended January 31, 2017
Allowance for possible losses in collection of trade receivables	$33	$246	$1	$27	$305

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- Definition

Tabular disclosure of valuation allowances to reduce deferred tax assets to net realizable value, including identification of the deferred tax asset more likely than not will not be fully realized and the corresponding amount of the valuation allowance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319

+ Details

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Balance Type:	na
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