Concentration.

No definition available.

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Namespace Prefix:	seii_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of customer.

+ References

No definition available.

+ Details

Name:	seii_NumberOfCustomer
Namespace Prefix:	seii_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of suppliers.

+ References

No definition available.

+ Details

Name:	seii_NumberOfSuppliers
Namespace Prefix:	seii_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.15(a))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15(5))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13531-108611

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13537-108611

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

This item represents disclosure of all significant concentrations of credit risk or market risk arising from the subject financial instrument (as defined), whether from an individual counterparty or groups of counterparties.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(5))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Concentrations (Details)	3 Months Ended		9 Months Ended
Concentrations (Details)	Sep. 30, 2019 USD ($) Customer Supplier	Sep. 30, 2018 Customer Supplier	Sep. 30, 2019 USD ($) Customer Supplier	Sep. 30, 2018 Customer Supplier
Suppliers A [Member] \| Accounts Payable [Member]
Concentrations (Textual)
Outstanding accounts payable balance
Suppliers B [Member] \| Accounts Payable [Member]
Concentrations (Textual)
Outstanding accounts payable balance
Customer A [Member] \| Accounts Receivable [Member]
Concentrations (Textual)
Outstanding accounts receivable	260,079		260,079
Customer B [Member] \| Accounts Receivable [Member]
Concentrations (Textual)
Outstanding accounts receivable	168,154		168,154
Customer C [Member] \| Accounts Receivable [Member]
Concentrations (Textual)
Outstanding accounts receivable	70,064		70,064
Customer D [Member] \| Accounts Receivable [Member]
Concentrations (Textual)
Outstanding accounts receivable	472,233		472,233
Customer E [Member] \| Accounts Receivable [Member]
Concentrations (Textual)
Outstanding accounts receivable	$ 29,427		$ 29,427
Revenues [Member]
Concentrations (Textual)
Concentration risk percentage	80.00%	45.00%	43.00%	45.00%
Number of customers \| Customer	5	3	5	3
Revenues [Member] \| Customer One [Member]
Concentrations (Textual)
Concentration risk percentage	34.00%	18.00%	11.00%	18.00%
Revenues [Member] \| Customer Two [Member]
Concentrations (Textual)
Concentration risk percentage	16.00%	16.00%	10.00%	16.00%
Revenues [Member] \| Customer Three [Member]
Concentrations (Textual)
Concentration risk percentage	14.00%	11.00%	8.00%	11.00%
Revenues [Member] \| Customer Four [Member]
Concentrations (Textual)
Concentration risk percentage	8.00%		7.00%
Revenues [Member] \| Customer Five [Member]
Concentrations (Textual)
Concentration risk percentage	8.00%		7.00%
Purchase [Member]
Concentrations (Textual)
Concentration risk percentage	73.00%	74.00%	40.00%	76.00%
Number of suppliers \| Supplier	3	4	2	4
Purchase [Member] \| Supplier One [Member]
Concentrations (Textual)
Concentration risk percentage	46.00%	22.00%	20.00%	14.00%
Purchase [Member] \| Supplier Two [Member]
Concentrations (Textual)
Concentration risk percentage	16.00%	22.00%	20.00%	29.00%
Purchase [Member] \| Supplier Three [Member]
Concentrations (Textual)
Concentration risk percentage	11.00%	18.00%		18.00%
Purchase [Member] \| Suppliers Four [Member]
Concentrations (Textual)
Concentration risk percentage		12.00%		15.00%