XML 74 R51.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Bank Guarantees (Details Narrative) (Performance Guarantee, USD $) | 12 Months Ended
--- | ---
Feb. 28, 2014
Performance Guarantee |
Cash on deposit with a foreign bank utilized to collateralize guarantees issued by the bank | $ 26,729
Expiration of bank guarantees | The guarantees expire at various dates in 2014.

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | SOTK_ExpirationOfBankGuarantees
Namespace Prefix: | SOTK_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
Name: | us-gaap_GuaranteeObligationsCurrentCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant