Stock Option Plans (Schedule Of Remaining Unvested Restricted Stock Grants) (Details)	Dec. 31, 2012
Stock Option Plans [Abstract]
2013	38,619
2014	36,164
2015	28,990
2016	17,408
2017	1,963
Remaining unvested restricted stock grants	123,144

Share Based Compensation Arrangement By Share Based Payment Award Unvested Restricted Stock Expected To Vest Year Five

No definition available.

Name:	sbbx_ShareBasedCompensationArrangementByShareBasedPaymentAwardUnvestedRestrictedStockExpectedToVestYearFive
Namespace Prefix:	sbbx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Share Based Compensation Arrangement By Share Based Payment Award Unvested Restricted Stock Expected To Vest Year Four

No definition available.

Name:	sbbx_ShareBasedCompensationArrangementByShareBasedPaymentAwardUnvestedRestrictedStockExpectedToVestYearFour
Namespace Prefix:	sbbx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Share Based Compensation Arrangement By Share Based Payment Award Unvested Restricted Stock Expected To Vest Year One

No definition available.

Name:	sbbx_ShareBasedCompensationArrangementByShareBasedPaymentAwardUnvestedRestrictedStockExpectedToVestYearOne
Namespace Prefix:	sbbx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Share Based Compensation Arrangement By Share Based Payment Award Unvested Restricted Stock Expected To Vest Year Three

No definition available.

Name:	sbbx_ShareBasedCompensationArrangementByShareBasedPaymentAwardUnvestedRestrictedStockExpectedToVestYearThree
Namespace Prefix:	sbbx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Share Based Compensation Arrangement By Share Based Payment Award Unvested Restricted Stock Expected To Vest Year Total

No definition available.

Name:	sbbx_ShareBasedCompensationArrangementByShareBasedPaymentAwardUnvestedRestrictedStockExpectedToVestYearTotal
Namespace Prefix:	sbbx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Share Based Compensation Arrangement By Share Based Payment Award Unvested Restricted Stock Expected To Vest Year Two

No definition available.

Name:	sbbx_ShareBasedCompensationArrangementByShareBasedPaymentAwardUnvestedRestrictedStockExpectedToVestYearTwo
Namespace Prefix:	sbbx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

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