Term of employment required to be eligible to participate in defined contribution plan.

No definition available.

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Namespace Prefix:	ctso_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

+ Details

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Balance Type:	debit
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

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Balance Type:	na
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- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

+ Details

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

- Definition

Percentage employer matches of the employee's percentage contribution matched.

+ References

No definition available.

+ Details

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

- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

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

- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
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Balance Type:
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- Details

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Namespace Prefix:
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- Details

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RETIREMENT PLAN (Details) - USD ($)		1 Months Ended	12 Months Ended
RETIREMENT PLAN (Details) - USD ($)	Jan. 01, 2021	Jun. 30, 2014	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
RETIREMENT PLAN
Term of employment required		3 months
Compensation subject to IRC limitations		100.00%
Matching contribution, Percent			20.00%
Compensation for participant contributions			5.00%
Matching contributions, Amount			$ 442,000	$ 355,000	$ 59,200
Participants contribution up to 3 percent
RETIREMENT PLAN
Matching contribution, Percent	100.00%
Compensation for participant contributions	3.00%
Participants contribution over 3% and maximum 5%
RETIREMENT PLAN
Matching contribution, Percent	50.00%
Minimum \| Participants contribution over 3% and maximum 5%
RETIREMENT PLAN
Compensation for participant contributions	3.00%
Maximum \| Participants contribution over 3% and maximum 5%
RETIREMENT PLAN
Compensation for participant contributions	5.00%