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Supplementary Cash Flow Information (Tables)

3 Months Ended

Jul. 31, 2015

Supplemental Cash Flow Elements [Abstract]

Schedule of cash flow supplemental disclosures

		Three Months Ended July 31,
($ in thousands)		2015			2014
State and local income tax payments		$	93		$	86

X

- Definition

Tabular disclosure of supplemental cash flow information for the periods presented.

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

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