Accounts Receivable (Details Textual) - USD ($)	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018
Accounts Receivable (Textual)
Bad debt expense	$ 4,356,123	$ 1,315,990

Amount of expense related to allowance for doubtful accounts.

No definition available.

Name:	seii_AllowanceForDoubtfulAccounts
Namespace Prefix:	seii_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration