Note 9 - Commitments - Minimum Guarantee Payments Under Renewable License Commitments (Details)	Dec. 31, 2017 USD ($)
2018	$ 31,418
2019	30,585
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.

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