DEBT - Bridge Financing - Automatic Conversion or Debt Extension (Details) - Bridge Notes	12 Months Ended
Dec. 31, 2021	Oct. 01, 2020	Sep. 30, 2020
Debt Instrument [Line Items]
Discount rate on issue price of stock in automatic conversion stock	10.00%
Rate on issue price of stock in automatic conversion stock	90.00%
Minimum percentage of repayments of total adjusted outstanding principal for automatic conversion	25.00%
Interest rate	15.00%	30.00%	24.00%
Maturity term	18 months

Represents the discount rate on issue price of stock in automatic conversion stock.

No definition available.

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Namespace Prefix:	ispc_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the minimum percentage of repayments of total adjusted outstanding principal for automatic conversion.

+ References

No definition available.

+ Details

Name:	ispc_MinimumPercentageOfRepaymentsOfTotalAdjustedOutstandingPrincipalForAutomaticConversion
Namespace Prefix:	ispc_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the rate on issue price of stock in automatic conversion stock.

+ References

No definition available.

+ Details

Name:	ispc_RateOnIssuePriceOfStockInAutomaticConversionStock
Namespace Prefix:	ispc_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

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 210.5-02.22(a)(1))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
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

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_DebtInstrumentAxis=us-gaap_BridgeLoanMember
Namespace Prefix:
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Balance Type:
Period Type: