Note 7 - Foreign Operations (Details)	Mar. 31, 2013
Policy Text Block [Abstract]
Non-refundable Royalties of Gross Store Sales	3.00%
Non-refundable Royalties of Gross Internet Sales	3.00%

Percentage of revenue earned relating to consideration received from another party for the right to use, but not own, certain of the entity's intangible assets. Licensing arrangements include, but are not limited to, rights to use a patent, copyright, technology, manufacturing process, software or trademark. Licensing fees are generally, but not always, fixed as to amount and not dependent upon the revenue generated by the licensing party. An entity may receive licensing fees for licenses that also generate royalty payments to the entity.

No definition available.

Name:	sont_NonRefundableRoyaltiesofGrossInternetSales
Namespace Prefix:	sont_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant