Commitments and Contingencies (Details) $ in Millions	1 Months Ended
Oct. 31, 2018 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Potential liability related to asset purchase agreement	$ 4.3

Potential liability related to asset purchase agreement

No definition available.

Name:	slng_Potentialliabilityrelatedtoassetpurchaseagreement
Namespace Prefix:	slng_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration