Note 7 - Commitments - Minimum Guarantee Payments Under Renewable License Commitments (Details)	Mar. 31, 2018 USD ($)
2018	$ 26,903
2019	31,070
2020	$ 3,000

Represents the minimum guarantee payments under renewable license commitments required to be paid in the third fiscal year following the latest fiscal year.

No definition available.

Name:	sgldf_MinimumGuaranteePaymentsUnderRenewableLicenseCommitmentsYearThree
Namespace Prefix:	sgldf_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant