Exercise date of the warrant, in CCYY-MM-DD format.

No definition available.

Name:	spex_ClassOfWarrantOrRightExercisePeriodOfWarrantsOrRights
Namespace Prefix:	spex_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares under warrants that were either cancelled or expired.

+ References

No definition available.

+ Details

Name:	spex_ClassOfWarrantOrRightNumberOfSharesExpired
Namespace Prefix:	spex_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

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Namespace Prefix:
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- Details

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Data Type:	na
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- Details

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Namespace Prefix:
Data Type:	na
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- Details

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Namespace Prefix:
Data Type:	na
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Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
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- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=spex_SeriesBWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Fair Value of Financial Assets and Liabilities (Details Narrative) - $ / shares	Dec. 07, 2015	Jul. 21, 2015	May 24, 2016
July 2015 Warrants [Member] \| Investor [Member]
Number of common shares purchased		370,263
Exercise price (in dollars per share)		$ 8.17
Exercise date		Jan. 22, 2016
Series A Warrants [Member]
Number of common shares purchased	1,052,624
Exercise price (in dollars per share)	$ 3.80
Number of shares expired			852,624
Series A Warrants [Member] \| Minimum [Member]
Exercise date	Dec. 07, 2015
Series A Warrants [Member] \| Maximum [Member]
Exercise date	May 06, 2016
Series B Warrants [Member]
Number of common shares purchased	842,099
Exercise price (in dollars per share)	$ 4.75
Series B Warrants [Member] \| Minimum [Member]
Exercise date	Dec. 07, 2015
Series B Warrants [Member] \| Maximum [Member]
Exercise date	Dec. 06, 2020