Stock Compensation Information (Narrative) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
Jan. 31, 2013	Jan. 31, 2012
Stock Compensation Information [Abstract]
Pricing model expected dividend yield	0.00%
Forfeiture rate	20.00%
Total intrinsic value of awards exercised	$ 0	$ 0.1
Fair value of awards vested	0.6	0.9
Fair value of awards granted	$ 0.4	$ 1.1

ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumption

No definition available.

Name:	unfy_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsForfeitureRate
Namespace Prefix:	unfy_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Option Pricing Model Expected Dividend Yield

+ References

No definition available.

+ Details

Name:	unfy_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionPricingModelExpectedDividendYield
Namespace Prefix:	unfy_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award Options Granted In Period Weighted Average Fair Value

+ References

No definition available.

+ Details

Name:	unfy_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantedInPeriodWeightedAverageFairValue
Namespace Prefix:	unfy_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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

- Definition

The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)(2)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph c(2)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration