Represents expected amount to recognize the unrecognized compensation cost for fiscal year five.

No definition available.

Name:	strp_ExpectedToRecognizeUnrecognizedCompensationCostFiscalYearFive
Namespace Prefix:	strp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents expected amount to recognize the unrecognized compensation cost for fiscal year four.

+ References

No definition available.

+ Details

Name:	strp_ExpectedToRecognizeUnrecognizedCompensationCostFiscalYearFour
Namespace Prefix:	strp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents expected amount to recognize the unrecognized compensation cost for fiscal year three.

+ References

No definition available.

+ Details

Name:	strp_ExpectedToRecognizeUnrecognizedCompensationCostFiscalYearThree
Namespace Prefix:	strp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents expected amount to recognize the unrecognized compensation cost for fiscal year two.

+ References

No definition available.

+ Details

Name:	strp_ExpectedToRecognizeUnrecognizedCompensationCostFiscalYearTwo
Namespace Prefix:	strp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents expected amount to recognize the unrecognized compensation cost for next fiscal year.

+ References

No definition available.

+ Details

Name:	strp_ExpectedToRecognizeUnrecognizedCompensationCostNextFiscalYear
Namespace Prefix:	strp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the number of directors.

+ References

No definition available.

+ Details

Name:	strp_NumberOfDirectors
Namespace Prefix:	strp_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- References

No definition available.

+ Details

Name:	strp_StockBasedCompensationTextualAbstract
Namespace Prefix:	strp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

+ References

No definition available.

+ Details

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

- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

+ Details

Name:	us-gaap_ShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Aggregate value of stock related to Restricted Stock Awards issued during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_TitleOfIndividualAxis=strp_OfficersAndEmployeesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_TitleOfIndividualAxis=strp_JonasMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VestingAxis=strp_VestedOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VestingAxis=strp_VestedTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TitleOfIndividualAxis=strp_ConsultantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TitleOfIndividualAxis=us-gaap_DirectorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_OptionIndexedToIssuersEquityTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Stock-Based Compensation (Details)			1 Months Ended	3 Months Ended		6 Months Ended
Stock-Based Compensation (Details)	Jan. 05, 2017 USD ($) Directors shares	Sep. 09, 2016 shares	Oct. 31, 2016 USD ($) shares	Jan. 31, 2017 USD ($)	Jan. 31, 2016 USD ($)	Jan. 31, 2017 USD ($) shares	Jan. 31, 2016 USD ($)
Stock-Based Compensation (Textual)
Class B common stock reserved for grant of awards under 2013 Plan \| shares						1,503,532
Stock-based compensation is included in selling, general and administrative				$ 96,000		$ 193,000
Officers and Employees [Member]
Stock-Based Compensation (Textual)
Granted restricted shares of Class B common stock \| shares			164,000
Fair value of granted restricted shares of Class B common stock			$ 4,392,000
Officers and Employees [Member] \| Minimum [Member]
Stock-Based Compensation (Textual)
Vesting period			2 years
Officers and Employees [Member] \| Maximum [Member]
Stock-Based Compensation (Textual)
Vesting period			4 years
Jonas [Member]
Stock-Based Compensation (Textual)
Granted restricted shares of Class B common stock \| shares			120,000
Jonas [Member] \| Vested one [Member]
Stock-Based Compensation (Textual)
Granted restricted shares of Class B common stock \| shares			60,000
Fair value of granted restricted shares of Class B common stock			$ 1,866,000
Jonas [Member] \| Vested two [Member]
Stock-Based Compensation (Textual)
Granted restricted shares of Class B common stock \| shares			60,000
Fair value of granted restricted shares of Class B common stock			$ 1,866,000
Vesting period			3 years
Consultant [Member]
Stock-Based Compensation (Textual)
Granted restricted shares of Class B common stock \| shares		1,250
Vesting period		13 months
Directors [Member]
Stock-Based Compensation (Textual)
Granted restricted shares of Class B common stock \| shares	24,000
Fair value of granted restricted shares of Class B common stock	$ 886,000
Number of directors \| Directors	3
Stock options [Member]
Stock-Based Compensation (Textual)
Stock-based compensation is included in selling, general and administrative				1,869,000	$ 988,000	4,286,000	$ 1,586,000
Unrecognized compensation cost related to non-vested restricted shares				$ 7,065,000		7,065,000
Unrecognized compensation cost 2017						1,616,000
Unrecognized compensation cost 2018						2,781,000
Unrecognized compensation cost 2019						1,990,000
Unrecognized compensation cost 2020						615,000
Unrecognized compensation cost 2021						$ 63,000