Name:	span_Note12DeferredCompensationDetailsLineItems
Namespace Prefix:	span_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount of commitment made to pay deferred cash remuneration.

+ References

No definition available.

+ Details

Name:	us-gaap_DeferredCompensationArrangementWithIndividualCashAwardGrantedAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 710

-SubTopic 10

-Section 30

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363

+ Details

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

- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bbb)

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueInputsDiscountRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Note 12 - Deferred Compensation (Details) (USD $)	12 Months Ended
Note 12 - Deferred Compensation (Details) (USD $)	Sep. 28, 2013	Sep. 29, 2012	Oct. 01, 2011
Note 12 - Deferred Compensation (Details) [Line Items]
Fair Value Inputs, Discount Rate	6.00%	8.00%	8.00%
Per Year [Member] \| Founder [Member]
Note 12 - Deferred Compensation (Details) [Line Items]
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount	$ 114,000
One-time Charge From Reduction In Disccount Rate [Member]
Note 12 - Deferred Compensation (Details) [Line Items]
Deferred Compensation Arrangement with Individual, Compensation Expense	40,000
Founder [Member]
Note 12 - Deferred Compensation (Details) [Line Items]
Deferred Compensation Arrangement with Individual, Compensation Expense	$ 94,000	$ 59,000	$ 62,000