DIVIDENDS (Details) $ in Thousands	12 Months Ended
Dec. 31, 2017 USD ($)
DIVIDENDS
Dividends paid or proposed	$ 0

Amount of dividends paid or proposed during the period.

No definition available.

Name:	skys_DividendsPaidOrProposed
Namespace Prefix:	skys_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration