SHAREHOLDERS EQUITY (Details - Dividends) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended	12 Months Ended
Feb. 28, 2022	Aug. 31, 2021
Dividends Payable [Line Items]
Total Amount	$ 2,420	$ 4,811
FY 2022 1st Qtr [Member]
Dividends Payable [Line Items]
Record Date	Oct. 25, 2021
Distribution Date	Nov. 01, 2021
Number of Shares Outstanding on Record Date	20,148
Dividend per Share	$ 0.06
Total Amount	$ 1,209
FY 2022 2nd Qtr [Member]
Dividends Payable [Line Items]
Record Date	Jan. 31, 2022
Distribution Date	Feb. 07, 2022
Number of Shares Outstanding on Record Date	20,178
Dividend per Share	$ 0.06
Total Amount	$ 1,211
FY 2021 1st Qtr [Member]
Dividends Payable [Line Items]
Record Date		Oct. 26, 2020
Distribution Date		Nov. 02, 2020
Number of Shares Outstanding on Record Date		19,924
Dividend per Share		$ 0.06
Total Amount		$ 1,195
FY 2021 2nd Qtr [Member]
Dividends Payable [Line Items]
Record Date		Jan. 25, 2021
Distribution Date		Feb. 01, 2021
Number of Shares Outstanding on Record Date		20,010
Dividend per Share		$ 0.06
Total Amount		$ 1,201
FY 2021 3rd Qtr [Member]
Dividends Payable [Line Items]
Record Date		Apr. 26, 2021
Distribution Date		May 03, 2021
Number of Shares Outstanding on Record Date		20,115
Dividend per Share		$ 0.06
Total Amount		$ 1,207
FY 2021 4th Qtr [Member]
Dividends Payable [Line Items]
Record Date		Jul. 26, 2021
Distribution Date		Aug. 02, 2021
Number of Shares Outstanding on Record Date		20,139
Dividend per Share		$ 0.06
Total Amount		$ 1,208

Weighted average number of shares outstanding basic and diluted at record date

No definition available.

Name:	SLP_WeightedAverageNumberOfSharesOutstandingBasicAndDilutedAtRecordDate
Namespace Prefix:	SLP_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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=120397183&loc=d3e187085-122770

+ Details

Name:	us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the dividend to be paid was declared, in YYYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586

+ Details

Name:	us-gaap_DividendsPayableDateDeclaredDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the holder must own the stock to be entitled to the dividend, in YYYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	us-gaap_DividendsPayableDateOfRecordDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

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

- Definition

Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585

+ Details

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

- Details

Name:	us-gaap_DividendsAxis=SLP_RecordDate20221Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=SLP_RecordDate20222Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=SLP_RecordDate20211Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=SLP_RecordDate20212Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=SLP_RecordDate20213Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=SLP_RecordDate20214Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: