XML 24 R10.htm IDEA: XBRL DOCUMENT v3.19.1

Note 3 - Discontinued Operations	12 Months Ended
	Jan. 31, 2019
Notes to Financial Statements
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	Note 3  - Discontinued operations The Company had a Filtration Products segment, which was sold in fiscal 2016, and was r eported as discontinued operations in the consolidated financial statements for those corresponding years. Included in accrued expenses reported for January 31, 2018 is an amount of $0.1 million for warranty liability. Net cash used in discontinued operating activities during 2017 was less than $0.1 million. There were no expenses related to discontinued operations in fiscal  2018.

X

- References

No definition available.

+ Details

Name:	us-gaap_DisclosureTextBlockAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The entire disclosure related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-URI http://asc.fasb.org/topic&trid=2155823

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-URI http://asc.fasb.org/subtopic&trid=2122178

+ Details

Name:	us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration