Class Of Warrant Or Right, Threshold For Exercise Feature, 10% Ownership

No definition available.

Name:	css_ClassOfWarrantOrRightThresholdForExerciseFeature
Namespace Prefix:	css_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Class Of Warrant Or Right, Threshold For Exercise Feature For Certain Current Investors

+ References

No definition available.

+ Details

Name:	css_ClassOfWarrantOrRightThresholdForExerciseFeatureForCertainCurrentInvestors
Namespace Prefix:	css_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Covenant Terms, Borrowing Base Until Compliance Certificate Is Achieved

+ References

No definition available.

+ Details

Name:	css_DebtInstrumentCovenantTermsBorrowingBaseUntilComplianceCertificateIsAchieved
Namespace Prefix:	css_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Debt Instrument, Covenant Terms, Borrowing Base Until Compliance Certificate Is Achieved, Incremental Increase

+ References

No definition available.

+ Details

Name:	css_DebtInstrumentCovenantTermsBorrowingBaseUntilComplianceCertificateIsAchievedIncrementalIncrease
Namespace Prefix:	css_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line Of Credit Facility, Consent Fees, Amount

+ References

No definition available.

+ Details

Name:	css_LineOfCreditFacilityConsentFeesAmount
Namespace Prefix:	css_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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

Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

+ References

Reference 1: 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(28))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=css_ABLCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Subsequent Events - Narrative (Details) - USD ($)		2 Months Ended
Subsequent Events - Narrative (Details) - USD ($)	Nov. 11, 2019	Feb. 01, 2020	Nov. 30, 2019	Oct. 04, 2019	Sep. 30, 2019	Sep. 24, 2019	Sep. 10, 2019	May 23, 2019	Mar. 31, 2019	Sep. 30, 2018
Subsequent Event [Line Items]
Preferred stock, par value (in dollars per share)					$ 0.01				$ 0.01	$ 0.01
Subsequent Event
Subsequent Event [Line Items]
Exercise price	$ 22.00
Threshold for exercise	10.00%
Threshold for exercise feature for certain current investors	20.00%
ABL Credit Facility
Subsequent Event [Line Items]
Borrowing capacity						$ 11,000,000	$ 10,000,000	$ 15,000,000
ABL Credit Facility \| Subsequent Event
Subsequent Event [Line Items]
Borrowing capacity				$ 12,500,000
Consent fees	$ 500,000
Forecast \| ABL Credit Facility
Subsequent Event [Line Items]
Borrowing capacity		$ 25,000,000	$ 20,000,000
Borrowing capacity incremental increase		$ 1,000,000