XML 17 R42.htm IDEA: XBRL DOCUMENT v3.3.0.814

Recent accounting pronouncements (Details) $ in Millions	Oct. 31, 2015 USD ($)
Recent accounting pronouncements [Abstract]
Deferred debt issuance costs	$ 0.2

X

- Definition

Recent accounting pronouncements [Abstract]

+ References

No definition available.

+ Details

Name:	mfri_RecentAccountingPronouncementsAbstract
Namespace Prefix:	mfri_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The carrying amount of deferred costs.

+ References

No definition available.

+ Details

Name:	us-gaap_DeferredCostsCurrentAndNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant