The amount of time after which the restriction on the units will expire.

No definition available.

Name:	sxi_ExpirationOfRestrictionsOnUnits
Namespace Prefix:	sxi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	sxi_Note13StockBasedCompensationandPurchasePlansDetailsLineItems
Namespace Prefix:	sxi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Element describing the percentage of fair value at which employees may purchase shares of the Company's common stock.

+ References

No definition available.

+ Details

Name:	sxi_PercentOfFairMarketValueAtWhichEmployeesMayPurchaseSharesOfStock
Namespace Prefix:	sxi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The maximum percentage of employees' annual incentive compensation in restricted stock, which is purchased at a discount to the market, that they may elect to defer.

+ References

No definition available.

+ Details

Name:	sxi_PercentOfParticipantsAnnualIncentiveCompensationParticipantsMayElectToDeferMaximum
Namespace Prefix:	sxi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The intrinsic value of equity-based payment equity instruments, excluding stock (or unit) options, that vested during the reporting period as calculated by applying the disclosed pricing methodology.

+ References

No definition available.

+ Details

Name:	sxi_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodAggregateIntrinsicValue
Namespace Prefix:	sxi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Additional information on share-based compensation from continuing operations.

+ References

No definition available.

+ Details

Name:	sxi_ShareBasedCompensationContinuingOperations
Namespace Prefix:	sxi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The percentage by which the number of common stock issued will be adjusted upward or downward at the end of the performance period.

+ References

No definition available.

+ Details

Name:	sxi_SharesOfCommonStockIssuedDeterminedByAdjustmentOfTargetRangePercent
Namespace Prefix:	sxi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the average price of shares issued during the period.

+ References

No definition available.

+ Details

Name:	sxi_StockIssuedDuringPeriodAveragePrice
Namespace Prefix:	sxi_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of shares of stock that are reserved for the Company's Employee Stock Purchase Plan.

+ References

No definition available.

+ Details

Name:	sxi_StockReservedForEmployeeStockPurchasePlan
Namespace Prefix:	sxi_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Aggregate number of common shares reserved for future issuance.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.29)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of deferred tax expense from write-off of the deferred tax asset related to deductible stock options at exercise.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 20

-Section 55

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=32706628&loc=d3e11283-113907

+ Details

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

- Definition

Unrecognized cost of unvested share-based compensation awards.

+ 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 (i)

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

+ Details

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

- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

+ Details

Name:	us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target 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 (c)(2)(iii)(1)

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

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target 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 (c)(2)(iii)(1)

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

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ 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 (c)(2)(i)-(ii)

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

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Note 13 - Stock-Based Compensation and Purchase Plans (Details) (USD $)	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Jun. 29, 2013
Note 13 - Stock-Based Compensation and Purchase Plans (Details) [Line Items]
Share-Based Compensation Continuing Operations	$ 6,630,000	$ 3,343,000	$ 3,768,000
Deferred Tax Expense from Stock Options Exercised	2,300,000	1,200,000	1,300,000
Common Stock, Capital Shares Reserved for Future Issuance (in Shares)	458,513
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)	62,698
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other Than Options, Vested in Period, Aggregate Intrinsic Value	4,932,618
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in Shares)	144,095			172,490
Restricted Stock Awards [Member] \| Executive Compensation Program [Member]
Note 13 - Stock-Based Compensation and Purchase Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)	$ 69.47	$ 55.61	$ 40.78
Restricted Stock Awards [Member]
Note 13 - Stock-Based Compensation and Purchase Plans (Details) [Line Items]
Share-Based Compensation Continuing Operations	3,300,000	1,500,000	1,400,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)	62,698	44,388	52,884
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)	$ 58.84	$ 44.59	$ 29.05
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other Than Options, Vested in Period, Aggregate Intrinsic Value	3,100,000	3,500,000	2,400,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	2,400,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	1 year 80 days
Performance Stock Units [Member] \| Executive Compensation Program [Member]
Note 13 - Stock-Based Compensation and Purchase Plans (Details) [Line Items]
Share-Based Compensation Continuing Operations	2,700,000	1,300,000	2,100,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)	$ 54.48	$ 44.20	$ 26.60
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	1,300,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	1 year 328 days
Performance Stock Units [Member]
Note 13 - Stock-Based Compensation and Purchase Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)	87,220
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in Shares)	40,366	41,003
Executive Compensation Program [Member]
Note 13 - Stock-Based Compensation and Purchase Plans (Details) [Line Items]
Share-Based Compensation Continuing Operations	700,000	600,000	400,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other Than Options, Vested in Period, Aggregate Intrinsic Value	2,200,000	3,100,000	5,400,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 200,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	1 year
Percent of Participants' Annual Incentive Compensation Participants May Elect to Defer, Maximum	50.00%
Expiration of Restrictions on Units	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in Shares)	52,431	105,967
Employee Stock Purchase Plan [Member]
Note 13 - Stock-Based Compensation and Purchase Plans (Details) [Line Items]
Percent of Fair Market Value at Which Employees May Purchase Shares of Stock	95.00%
Stock Reserved for Employee Stock Purchase Plan (in Shares)	97,890
Stock Issued During Period, Shares, Employee Stock Purchase Plans (in Shares)	44,735,813	5,813	9,185
Stock Issued During Period, Average Price (in Dollars per share)	$ 58.54	$ 48.16	$ 34.48
Minimum [Member] \| Executive Compensation Program [Member]
Note 13 - Stock-Based Compensation and Purchase Plans (Details) [Line Items]
Shares of Common Stock Issued Determined by Adjustment of Target Range, Percent	50.00%
Maximum [Member] \| Executive Compensation Program [Member]
Note 13 - Stock-Based Compensation and Purchase Plans (Details) [Line Items]
Shares of Common Stock Issued Determined by Adjustment of Target Range, Percent	200.00%