Monthly rent description.

No definition available.

Name:	SRNA_MonthlyRentDescription
Namespace Prefix:	SRNA_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Unamortized amount of tenant improvement allowance.

+ References

No definition available.

+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_LesseeLeaseDescriptionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of lessee's operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980

+ Details

Name:	us-gaap_LesseeOperatingLeaseDescription
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977

+ Details

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

- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977

+ Details

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

- Definition

Carrying amount as of the balance sheet date of improvements having a life longer than one year that were made for the benefit of one or more tenants.

+ 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 210.7-03.1(f))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

+ Details

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

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=SRNA_FacilityLeaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Leases (Details Narrative) - USD ($)	3 Months Ended
Leases (Details Narrative) - USD ($)	Mar. 31, 2020	Dec. 31, 2019	Jan. 02, 2019
Lessee, Lease, Description [Line Items]
Operating lease right-of-use asset	$ 487,467	$ 534,133
Lease liability	569,203
ASU 2016-02 [Member]
Lessee, Lease, Description [Line Items]
Unamortized amount of tenant improvement allowance			$ 81,481
ASU 2016-02 [Member] \| Maximum [Member]
Lessee, Lease, Description [Line Items]
Tenant improvements			$ 100,000
Facility Lease [Member]
Lessee, Lease, Description [Line Items]
Operating lease right-of-use asset	714,416
Lease liability	$ 822,374
Operating lease term description	The Facility Lease commenced September 29, 2017 and continues through August 31, 2022.
Monthly rent description	Beginning September 1, 2018, and each subsequent September 1 during the term, the monthly rent under the Facility Lease will increase by 3%.