$CTSO
Cytosorbents Corp Stock $ctso

$ctso Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000141057822000331 Filed on March 10, 2022

Income Statement

Concept	2021 Q4	2021 Q3	2021
Revenue	$10.78M	$9.760M	$43.17M
YoY Change	-9.82%	-7.45%	5.27%
Cost Of Revenue	$3.123M	$2.463M	$11.05M
YoY Change	23.43%	-14.79%	-0.05%
Gross Profit	$7.659M	$7.297M	$32.12M
YoY Change	-18.76%	-4.69%	7.23%
Gross Profit Margin	71.04%	74.77%	74.41%
Selling, General & Admin	$11.08M	$7.777M	$35.75M
YoY Change	18.17%	6.79%	25.6%
% of Gross Profit	144.71%	106.57%	111.31%
Research & Development	$6.137M	$4.262M	$16.38M
YoY Change	128.15%	143.07%	85.92%
% of Gross Profit	80.13%	58.41%	51.0%
Depreciation & Amortization	$214.4K	$237.1K	$542.7K
YoY Change	34.0%	48.19%	-2.03%
% of Gross Profit	2.8%	3.25%	1.69%
Operating Expenses	$17.22M	$12.70M	$54.86M
YoY Change	42.8%	32.11%	36.06%
Operating Profit	-$9.562M	-$5.406M	-$22.74M
YoY Change	262.98%	175.87%	119.33%
Interest Expense	-$481.2K	$12.77K	$28.01K
YoY Change	-157.98%	-104.9%	-102.33%
% of Operating Profit
Other Income/Expense, Net		-$1.000M	-$2.550M
YoY Change		-189.32%	-281.35%
Pretax Income	-$10.04M	-$6.406M	-$25.29M
YoY Change	457.95%	662.9%	182.17%
Income Tax	-$736.0K	$0.00	-$736.0K
% Of Pretax Income
Net Earnings	-$9.307M	-$6.406M	-$24.56M
YoY Change	1268.68%	662.9%	213.36%
Net Earnings / Revenue	-86.32%	-65.64%	-56.89%
Basic Earnings Per Share	-$0.25	-$0.15	-$0.57
Diluted Earnings Per Share	-$0.18	-$0.15	-$0.57
COMMON SHARES
Basic Shares Outstanding	43.48M	43.40M	43.36M
Diluted Shares Outstanding		43.40M	43.36M

Balance Sheet

Concept	2021 Q4	2021 Q3	2021
SHORT-TERM ASSETS
Cash & Short-Term Investments	$52.14M	$61.04M	$52.14M
YoY Change	-26.98%	-30.63%	-27.0%
Cash & Equivalents	$52.14M	$61.04M	$52.14M
Short-Term Investments
Other Short-Term Assets	$2.872M	$1.940M	$2.872M
YoY Change	-10.26%	94.02%	-10.26%
Inventory	$4.766M	$4.528M	$4.766M
Prepaid Expenses
Receivables	$4.523M	$5.241M	$4.523M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$64.30M	$72.75M	$64.30M
YoY Change	-22.02%	-24.85%	-22.01%
LONG-TERM ASSETS
Property, Plant & Equipment	$5.151M	$3.799M	$18.57M
YoY Change	142.97%	82.87%	489.66%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$4.959M	$4.865M	$1.944M
YoY Change	14.04%	13.95%	1395.42%
Total Long-Term Assets	$25.22M	$22.32M	$25.22M
YoY Change	236.39%	198.38%	236.27%
TOTAL ASSETS
Total Short-Term Assets	$64.30M	$72.75M	$64.30M
Total Long-Term Assets	$25.22M	$22.32M	$25.22M
Total Assets	$89.52M	$95.07M	$89.52M
YoY Change	-0.48%	-8.84%	-0.48%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$2.805M	$3.358M	$2.805M
YoY Change	52.87%	40.71%	52.46%
Accrued Expenses	$1.044M	$5.648M	$6.472M
YoY Change	65.3%	-2.62%	-19.2%
Deferred Revenue	$1.947M
YoY Change	167.36%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$13.69M	$11.07M	$13.69M
YoY Change	34.84%	-36.22%	34.88%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change		-100.0%
Other Long-Term Liabilities	$13.25M	$13.39M	$13.25M
YoY Change	2108.49%	1812.28%	2184.64%
Total Long-Term Liabilities	$13.25M	$13.39M	$13.25M
YoY Change		123.35%	2184.64%
TOTAL LIABILITIES
Total Short-Term Liabilities	$13.69M	$11.07M	$13.69M
Total Long-Term Liabilities	$13.25M	$13.39M	$13.25M
Total Liabilities	$26.94M	$24.46M	$26.94M
YoY Change	150.97%	1.69%	151.08%
SHAREHOLDERS EQUITY
Retained Earnings	-$221.2M	-$211.9M
YoY Change	12.49%	8.13%
Common Stock	$43.48K	$43.48K
YoY Change	0.59%	0.69%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$62.58M	$70.61M	$62.58M
YoY Change
Total Liabilities & Shareholders Equity	$89.52M	$95.07M	$89.52M
YoY Change	-0.48%	-8.84%	-0.48%

Cashflow Statement

Concept	2021 Q4	2021 Q3	2021
OPERATING ACTIVITIES
Net Income	-$9.307M	-$6.406M	-$24.56M
YoY Change	1268.68%	662.9%	213.36%
Depreciation, Depletion And Amortization	$214.4K	$237.1K	$542.7K
YoY Change	34.0%	48.19%	-2.03%
Cash From Operating Activities	-$5.492M	-$4.134M	-$14.01M
YoY Change	423.01%	25.64%	149.51%
INVESTING ACTIVITIES
Capital Expenditures	-$1.673M	-$1.017M	$3.641M
YoY Change	519.54%	154.37%	414.01%
Acquisitions
YoY Change
Other Investing Activities
YoY Change
Cash From Investing Activities	-$1.673M	-$1.017M	-$4.281M
YoY Change	519.54%	154.37%	155.41%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$27.20M
YoY Change			0.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-80.92K	589.7K	715.2K
YoY Change	-99.47%	-98.95%	-98.92%
NET CHANGE
Cash From Operating Activities	-5.492M	-4.134M	-14.01M
Cash From Investing Activities	-1.673M	-1.017M	-4.281M
Cash From Financing Activities	-80.92K	589.7K	715.2K
Net Change In Cash	-7.245M	-4.561M	-17.60M
YoY Change	-56.01%	-108.66%	-129.73%
FREE CASH FLOW
Cash From Operating Activities	-$5.492M	-$4.134M	-$14.01M
Capital Expenditures	-$1.673M	-$1.017M	$3.641M
Free Cash Flow	-$3.819M	-$3.116M	-$17.65M
YoY Change	389.6%	7.82%	179.15%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.11
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.10
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.10
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.08
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.08
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.02
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.02
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.15
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.15
CY2021Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.18
CY2021Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.18
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.57
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.20
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.60
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	43359186
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	38818990
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32255253
CY2019	ctso	Share Based Compensation Arrangement By Share Based Payment Award Options Cancelled In Period Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsCancelledInPeriodWeightedAverageRemainingContractualTerm	P0Y
CY2019	ctso	Share Based Compensation Arrangement By Share Based Payment Award Options Expired In Period Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpiredInPeriodWeightedAverageRemainingContractualTerm	P0Y
CY2019	ctso	Share Based Compensation Arrangement By Share Based Payment Award Options Exercised In Period Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisedInPeriodWeightedAverageRemainingContractualTerm	P0Y
CY2020	ctso	Share Based Compensation Arrangement By Share Based Payment Award Options Cancelled In Period Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsCancelledInPeriodWeightedAverageRemainingContractualTerm	P0Y
CY2020	ctso	Share Based Compensation Arrangement By Share Based Payment Award Options Expired In Period Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpiredInPeriodWeightedAverageRemainingContractualTerm	P0Y
CY2020	ctso	Share Based Compensation Arrangement By Share Based Payment Award Options Exercised In Period Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisedInPeriodWeightedAverageRemainingContractualTerm	P0Y
CY2021	ctso	Share Based Compensation Arrangement By Share Based Payment Award Options Cancelled In Period Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsCancelledInPeriodWeightedAverageRemainingContractualTerm	P0Y
CY2021	ctso	Share Based Compensation Arrangement By Share Based Payment Award Options Expired In Period Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpiredInPeriodWeightedAverageRemainingContractualTerm	P0Y
CY2021	ctso	Share Based Compensation Arrangement By Share Based Payment Award Options Exercised In Period Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisedInPeriodWeightedAverageRemainingContractualTerm	P0Y
CY2021Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.10
CY2021Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.10
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.11
CY2020Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.00
CY2020Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.00
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.15
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.15
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.11
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.11
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.21
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.21
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.13
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.13
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001175151
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	43221999
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	43478487
CY2014Q2	ctso	Defined Contribution Eligibility Term DefinedContributionEligibilityTerm	P3M
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2021Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	001-36792
CY2021	dei	Entity Registrant Name EntityRegistrantName	CYTOSORBENTS CORPORATION
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	98-0373793
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	7 Deer Park Drive
CY2021	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite K
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Monmouth Junction
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	NJ
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	08852
CY2021	dei	City Area Code CityAreaCode	732
CY2021	dei	Local Phone Number LocalPhoneNumber	329-8885
CY2021	dei	Security12b Title Security12bTitle	Common Stock, $0.001 par value
CY2021	dei	Trading Symbol TradingSymbol	CTSO
CY2021	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	true
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021Q2	dei	Entity Public Float EntityPublicFloat	263355000
CY2022Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	43505948
CY2021	dei	Auditor Name AuditorName	WithumSmith+Brown, PC
CY2021	dei	Auditor Location AuditorLocation	East Brunswick, New Jersey
CY2021	dei	Auditor Firm AuditorFirmId	100
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	52137707
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	71421601
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	60539
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	46851
CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	4523430
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	5159275
CY2021Q4	us-gaap	Inventory Net InventoryNet	4766098
CY2020Q4	us-gaap	Inventory Net InventoryNet	2673799
CY2021Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	2871655
CY2020Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	3198460
CY2021Q4	us-gaap	Assets Current AssetsCurrent	64298890
CY2020Q4	us-gaap	Assets Current AssetsCurrent	82453135
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	5150886
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2119927
CY2021Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	1687459
CY2020Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	0
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	13423472
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1029123
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	4958575
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	4348286
CY2021Q4	us-gaap	Assets Assets	89519282
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CY2021Q4	ctso	Accrued Expenses And Other Current Liabilities AccruedExpensesAndOtherCurrentLiabilities	10314341
CY2020Q4	ctso	Accrued Expenses And Other Current Liabilities AccruedExpensesAndOtherCurrentLiabilities	7870687
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	570566
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	447485
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	13690142
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	10153254
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	13250943
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	581638
CY2021Q4	us-gaap	Liabilities Liabilities	26941085
CY2020Q4	us-gaap	Liabilities Liabilities	10734892
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2021Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2021Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
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CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	0
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
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CY2021Q4	us-gaap	Common Stock Value CommonStockValue	43478
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	43222
CY2021Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	283194429
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CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	89950471
CY2021	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	43165527
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CY2019	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	24949473
CY2021	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	11047350
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CY2021	us-gaap	Gross Profit GrossProfit	32118177
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CY2019	us-gaap	Gross Profit GrossProfit	17585554
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	16380930
CY2020	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	8810561
CY2019	us-gaap	Professional Fees ProfessionalFees	2462151
CY2021	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	35750477
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CY2019	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	22005670
CY2021	us-gaap	Operating Expenses OperatingExpenses	54862922
CY2020	us-gaap	Operating Expenses OperatingExpenses	40322526
CY2019	us-gaap	Operating Expenses OperatingExpenses	36559618
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	-22744745
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	-10370334
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	-18974064
CY2021	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	28007
CY2020	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-1201067
CY2019	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-1033661
CY2021	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-2577913
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	2607139
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-350365
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-2549906
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	1406072
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1384026
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-25294651
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-8964262
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-20358090
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-736003
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1127074
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1092446
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-24558648
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-2260056
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	237803
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-7837188
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-19265644
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.57
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.20
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.60
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	43359186
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	38818990
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32255253
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-24558648
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-7837188
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-19265644
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	2259663
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-22298985
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-10097244
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-19027841
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	16934600
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1666024
CY2019	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	673653
CY2019	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	663368
CY2019	ctso	Stock Issued During Period Value Stock Cash Warrants Exercised StockIssuedDuringPeriodValueStockCashWarrantsExercised	1768491
CY2019	ctso	Stock Issued During Period Value Stock Warrants Exercised StockIssuedDuringPeriodValueStockWarrantsExercised	0
CY2019	ctso	Stock Issued During Period Value Stock Cash Options Exercised StockIssuedDuringPeriodValueStockCashOptionsExercised	739747
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	0
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	237803
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-19265644
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	3418042
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3513671
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	80214008
CY2020	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	657780
CY2020	ctso	Stock Issued During Period Value Stock Cash Warrants Exercised StockIssuedDuringPeriodValueStockCashWarrantsExercised	1509322
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	0
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-2260056
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-7837188
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	79215579
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4020819
CY2021	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-90000
CY2021	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	928417
CY2021	ctso	Stock Issued During Period Value Stock Cash Options Exercised StockIssuedDuringPeriodValueStockCashOptionsExercised	805199
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	-2832
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	2259663
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-24558648
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	62578197
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-24558648
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-7837188
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-19265644
CY2021	us-gaap	Issuance Of Stock And Warrants For Services Or Claims IssuanceOfStockAndWarrantsForServicesOrClaims	2183317
CY2020	us-gaap	Issuance Of Stock And Warrants For Services Or Claims IssuanceOfStockAndWarrantsForServicesOrClaims	1193949
CY2019	us-gaap	Issuance Of Stock And Warrants For Services Or Claims IssuanceOfStockAndWarrantsForServicesOrClaims	1173743
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	731578
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	660788
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	581532
CY2021	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	398035
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-512
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-102310
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	72429
CY2021	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-2577913
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	2607139
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-350365
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	4020819
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	3513671
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	1666024
CY2020	ctso	Amortization Of Loan Acquisition Costs AmortizationOfLoanAcquisitionCosts	322812
CY2019	ctso	Amortization Of Loan Acquisition Costs AmortizationOfLoanAcquisitionCosts	115206
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-420578
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	326860
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	642171
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	2350547
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	461512
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	1284848
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-280915
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1076849
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	953888
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	135857
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	0
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-4030
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	2426810
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	1107352
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	1424440
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-14005599
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-5613286
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-16758782
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3641248
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	708395
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	698165
CY2021	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	640013
CY2020	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	967823
CY2019	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	821952
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-4281261
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1676218
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1520117
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1410900
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	5000000
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	16410900
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0
CY2020	ctso	Payment Of Non Refundable Final Fee Upon Termination Or Maturity Of Debt Instrument PaymentOfNonRefundableFinalFeeUponTerminationOrMaturityOfDebtInstrument	375000
CY2019	ctso	Payment Of Non Refundable Final Fee Upon Termination Or Maturity Of Debt Instrument PaymentOfNonRefundableFinalFeeUponTerminationOrMaturityOfDebtInstrument	0
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	4212
CY2021	ctso	Proceeds From Repayments Of Equity ProceedsFromRepaymentsOfEquity	-90000
CY2020	ctso	Proceeds From Repayments Of Equity ProceedsFromRepaymentsOfEquity	80214008
CY2019	ctso	Proceeds From Repayments Of Equity ProceedsFromRepaymentsOfEquity	673653
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	805199
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1509322
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	739747
CY2020	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	0
CY2019	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	1768491
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	715199
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	66348330
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	8177679
CY2021	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-24774
CY2020	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	130357
CY2019	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-35199
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-17596435
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	59189183
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-10136419
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	71421601
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	12232418
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	22368837
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	53825166
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	71421601
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	12232418
CY2020	us-gaap	Interest Paid Net InterestPaidNet	1127647
CY2019	us-gaap	Interest Paid Net InterestPaidNet	1059541
CY2021	us-gaap	Stock Issued1 StockIssued1	928417
CY2020	us-gaap	Stock Issued1 StockIssued1	657780
CY2019	us-gaap	Stock Issued1 StockIssued1	425639
CY2021	us-gaap	Basis Of Accounting BasisOfAccounting	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-weight:bold;margin:0pt 0pt 12pt 0pt;">1. BASIS OF PRESENTATION:</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;text-indent:36pt;margin:0pt 0pt 12pt 0pt;">The accompanying consolidated financial statements include the results of CytoSorbents Corporation (the “Parent”), CytoSorbents Medical Inc., its wholly-owned operating subsidiary (the “Subsidiary”), and CytoSorbents Europe GmbH, its wholly-owned European subsidiary (the “European Subsidiary”). In addition, the consolidated financial statements include CytoSorbents Switzerland GmbH and CytoSorbents Poland Sp. z.o.o., wholly owned subsidiaries of CytoSorbents Europe GmbH, and CytoSorbents UK Limited, a wholly-owned subsidiary of CytoSorbents Medical, Inc. These entities are collectively referred to as “the Company”.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;text-indent:36pt;margin:0pt;">In years prior to December 31, 2020, the Company’s consolidated financial statements were prepared on a going concern basis, which contemplates the realization of assets and satisfaction of liabilities in the normal course of business. On July 24, 2020, the Company closed an underwritten public offering of 6,052,631 shares of its common stock at a public offering price of $9.50 per share (the “Offering”). Gross proceeds from the Offering amounted to approximately $57.5 million and, after deducting the underwriting discounts and commissions and expenses related to the Offering, the Company received total net proceeds of approximately $53.8 million. See Note 11. As of December 31, 2021, the Company’s cash, cash equivalents and restricted cash balances were approximately $53.8 million, which the Company expects will fund the Company’s operations well beyond twelve months from the issuance of these financial statements. As a result, the Company has determined that the going concern risk has been substantially mitigated.</p>
CY2021Q4	us-gaap	Cash Cash	53800000
CY2021	ctso	Number Of Countries Where Flagship Product Is Marketed And Distributed NumberOfCountriesWhereFlagshipProductIsMarketedAndDistributed	70
CY2021Q4	ctso	Number Of Patents United States NumberOfPatentsUnitedStates	21
CY2021	ctso	Foreign Currency Transaction Gain Loss Excluding Tax ForeignCurrencyTransactionGainLossExcludingTax	-2578000
CY2020	ctso	Foreign Currency Transaction Gain Loss Excluding Tax ForeignCurrencyTransactionGainLossExcludingTax	2607000
CY2019	ctso	Foreign Currency Transaction Gain Loss Excluding Tax ForeignCurrencyTransactionGainLossExcludingTax	-350000
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	52137707
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	71421601
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	1687459
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	53825166
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	71421601
CY2021Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	1687459
CY2021Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	3084606
CY2020Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	1164635
CY2021Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	1322736
CY2020Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	1222062
CY2021Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	358756
CY2020Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	287102
CY2021	us-gaap	Advertising Expense AdvertisingExpense	615000
CY2020	us-gaap	Advertising Expense AdvertisingExpense	285000
CY2019	us-gaap	Advertising Expense AdvertisingExpense	314000
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-weight:bold;margin:0pt 0pt 12pt 0pt;">Use of Estimates</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;text-indent:36pt;margin:0pt 0pt 10pt 0pt;">The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities. Actual results could differ from these estimates. The valuation of options granted is a significant estimate in these consolidated financial statements.</p>
CY2021	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-weight:bold;margin:0pt 0pt 12pt 0pt;">Concentration of Credit Risk</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;text-indent:36pt;margin:0pt 0pt 12pt 0pt;">The Company maintains cash balances, at times, with financial institutions in excess of amounts insured by the Federal Deposit Insurance Corporation. Management monitors the soundness of these institutions in an effort to minimize its collection risk of these balances.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;text-indent:36pt;margin:0pt 0pt 12pt 0pt;">A significant portion of the Company’s revenues are from product sales in Germany. Substantially all of the Company’s grant and other income are from grant agencies in the United States. (See Note 3 for further information relating to the Company’s revenue.)</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;text-indent:36pt;margin:0pt;">As of December 31, 2021, one distributor accounted for approximately 12% of outstanding grants and accounts receivables. As of December 31, 2020, no agency, distributor/strategic partners or direct customer represented more than 10% of outstanding grants </p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt 0pt 12pt 0pt;">and accounts receivable. For the years ended December 31, 2021, 2020 and 2019 no agency, distributor/strategic partners or direct customer represented more than 10% of the Company’s total revenue.</p>
CY2021	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	43165527
CY2020	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	41004601
CY2019	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	24949473
CY2021	ctso	Number Of Primary Revenue Streams NumberOfPrimaryRevenueStreams	2
CY2021	ctso	Term Of Customer Contracts TermOfCustomerContracts	P3Y
CY2021Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	3000708
CY2020Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	2996679
CY2021Q4	us-gaap	Deferred Revenue DeferredRevenue	2251177
CY2020Q4	us-gaap	Deferred Revenue DeferredRevenue	1014652
CY2021Q4	ctso	Contract With Customer Liability Value Of Free Of Charge Goods And Credit Rebates Current ContractWithCustomerLiabilityValueOfFreeOfChargeGoodsAndCreditRebatesCurrent	303824
CY2020Q4	ctso	Contract With Customer Liability Value Of Free Of Charge Goods And Credit Rebates Current ContractWithCustomerLiabilityValueOfFreeOfChargeGoodsAndCreditRebatesCurrent	286301
CY2021Q4	ctso	Contract With Customer Liability Net Of Free Of Charge Goods And Credit Rebates Current ContractWithCustomerLiabilityNetOfFreeOfChargeGoodsAndCreditRebatesCurrent	1947353
CY2020Q4	ctso	Contract With Customer Liability Net Of Free Of Charge Goods And Credit Rebates Current ContractWithCustomerLiabilityNetOfFreeOfChargeGoodsAndCreditRebatesCurrent	728351
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	9911505
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	6370936
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	4760619
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	4251009
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	5150886
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2119927
CY2021	us-gaap	Depreciation Depreciation	542689
CY2020	us-gaap	Depreciation Depreciation	553946
CY2019	us-gaap	Depreciation Depreciation	495728
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	657320
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	496898
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	4701984
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	4222394
CY2021Q4	us-gaap	Security Deposit SecurityDeposit	256591
CY2020Q4	us-gaap	Security Deposit SecurityDeposit	125892
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	4958575
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	4348286
CY2021	us-gaap	Adjustment For Amortization AdjustmentForAmortization	160422
CY2020	us-gaap	Adjustment For Amortization AdjustmentForAmortization	106842
CY2019	us-gaap	Adjustment For Amortization AdjustmentForAmortization	85804
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	192000
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	189000
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	189000
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	189000
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	188000
CY2021Q4	ctso	Accrued Salaries And Commissions Current AccruedSalariesAndCommissionsCurrent	3270715
CY2020Q4	ctso	Accrued Salaries And Commissions Current AccruedSalariesAndCommissionsCurrent	2908320
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	1947353
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	728351
CY2021Q4	ctso	Clinical Study Costs Payable Current ClinicalStudyCostsPayableCurrent	1767826
CY2020Q4	ctso	Clinical Study Costs Payable Current ClinicalStudyCostsPayableCurrent	781041
CY2021Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	1044088
CY2020Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	631642
CY2021Q4	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	769262
CY2020Q4	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	916695
CY2021Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	314068
CY2020Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	317575
CY2021Q4	ctso	Customer Rebates CustomerRebates	214119
CY2020Q4	ctso	Customer Rebates CustomerRebates	305852
CY2021Q4	ctso	Sales Payroll And Income Taxes Payable Current SalesPayrollAndIncomeTaxesPayableCurrent	785818
CY2020Q4	ctso	Sales Payroll And Income Taxes Payable Current SalesPayrollAndIncomeTaxesPayableCurrent	1159215
CY2021Q4	ctso	Accrued Travel And Entertainment Expense Current AccruedTravelAndEntertainmentExpenseCurrent	88850
CY2020Q4	ctso	Accrued Travel And Entertainment Expense Current AccruedTravelAndEntertainmentExpenseCurrent	24267
CY2021Q4	ctso	Accrued Director Fees Current AccruedDirectorFeesCurrent	71381
CY2020Q4	ctso	Accrued Director Fees Current AccruedDirectorFeesCurrent	62140
CY2021Q4	ctso	Congresses Payable Current CongressesPayableCurrent	40861
CY2020Q4	ctso	Congresses Payable Current CongressesPayableCurrent	35589
CY2021Q4	ctso	Accrued Expenses And Other Current Liabilities AccruedExpensesAndOtherCurrentLiabilities	10314341
CY2020Q4	ctso	Accrued Expenses And Other Current Liabilities AccruedExpensesAndOtherCurrentLiabilities	7870687
CY2021	ctso	Debt Instrument Non Refundable Fee Upon Termination Or Maturity Percent DebtInstrumentNonRefundableFeeUponTerminationOrMaturityPercent	0.025
CY2020Q2	ctso	Loan Proceeds From Payroll Protection Program LoanProceedsFromPayrollProtectionProgram	1411000
CY2021Q4	us-gaap	Lessee Operating Lease Discount Rate LesseeOperatingLeaseDiscountRate	0.098
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	13423472
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1029123
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	13821509
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	1029123
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	570566
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	447485
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	13250943
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	581638
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	906000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Two LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo	1266346
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Three LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree	1656678
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Four LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour	1695677
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Five LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive	1735747
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Rolling Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive	19009219
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	27260319
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	13438810
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	13821509
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	1968000
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	937000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Rolling Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths	1896652
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P14Y3M18D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-18829797
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-5682628
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-11921799
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-6464854
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-3281634
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-8436291
CY2021	ctso	Income Loss From Continuing Operations Before Income Taxes Noncontrolling Interests IncomeLossFromContinuingOperationsBeforeIncomeTaxesNoncontrollingInterests	-25294651
CY2020	ctso	Income Loss From Continuing Operations Before Income Taxes Noncontrolling Interests IncomeLossFromContinuingOperationsBeforeIncomeTaxesNoncontrollingInterests	-8964262
CY2019	ctso	Income Loss From Continuing Operations Before Income Taxes Noncontrolling Interests IncomeLossFromContinuingOperationsBeforeIncomeTaxesNoncontrollingInterests	-20358090
CY2021	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	-736003
CY2021	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	0
CY2020	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	-1127074
CY2019	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	-1092446
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	4069166
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	431490
CY2020	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	0
CY2019	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	0
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-736003
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1127074
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1092446
CY2021Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	83500000
CY2021	us-gaap	Operating Loss Carryforwards Limitations On Use OperatingLossCarryforwardsLimitationsOnUse	80% limitation on taxable income
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2021	ctso	Proceeds From Sale Of Net Operating Loss Carryforwards ProceedsFromSaleOfNetOperatingLossCarryforwards	736000
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	27190654
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	22301154
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	20843902
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	1203272
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	305982
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	329726
CY2021Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	2687591
CY2020Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	2194211
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	1720558
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	232665
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	135330
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	56461
CY2021Q4	ctso	Deferred Tax Assets Tax Credit Carryforwards Lease Liability DeferredTaxAssetsTaxCreditCarryforwardsLeaseLiability	3997114
CY2020Q4	ctso	Deferred Tax Assets Tax Credit Carryforwards Lease Liability DeferredTaxAssetsTaxCreditCarryforwardsLeaseLiability	289287
CY2019Q4	ctso	Deferred Tax Assets Tax Credit Carryforwards Lease Liability DeferredTaxAssetsTaxCreditCarryforwardsLeaseLiability	300991
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	35311296
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	25225964
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	23251638
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	31242130
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	24794474
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	22857741
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	4069166
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	431490
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	393897
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	393897
CY2021Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0
CY2021	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	6447656
CY2020	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	1936732
CY2019	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	4623931
CY2019	ctso	Effective Income Tax Rate Reconciliation Permanent Income Tax Rate Percent EffectiveIncomeTaxRateReconciliationPermanentIncomeTaxRatePercent	-0.020
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.118
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.170
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.080
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.255
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.216
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.227
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.017
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.044
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.018
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.028
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.126
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.054
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.020
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.095
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.044
CY2021Q4	us-gaap	Income Tax Examination Interest Accrued IncomeTaxExaminationInterestAccrued	598000
CY2021Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	154000
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	131000
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.023
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.033
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.037
CY2021	ctso	Effective Income Tax Rate Reconciliation Permanent Income Tax Rate Percent EffectiveIncomeTaxRateReconciliationPermanentIncomeTaxRatePercent	-0.065
CY2020	ctso	Effective Income Tax Rate Reconciliation Permanent Income Tax Rate Percent EffectiveIncomeTaxRateReconciliationPermanentIncomeTaxRatePercent	-0.020
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	175000
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	138000
CY2021	ctso	Executive Employment Agreements Initial Term ExecutiveEmploymentAgreementsInitialTerm	P3Y
CY2021	ctso	Employment Agreements Automatic Renewal Period EmploymentAgreementsAutomaticRenewalPeriod	P1Y
CY2021	ctso	Employment Agreements Automatic Renewed Period EmploymentAgreementsAutomaticRenewedPeriod	P1Y
CY2021	ctso	License Period LicensePeriod	P18Y
CY2021	ctso	License Period LicensePeriod	P18Y
CY2019Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2019Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000
CY2019Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	16320
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	7.50
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	226440
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	5.60
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	371007
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	4.46
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	5165204
CY2018Q3	ctso	Aggregate Registered Amount For Offerings AggregateRegisteredAmountForOfferings	150000000
CY2021Q3	ctso	Aggregate Registered Amount For Offerings AggregateRegisteredAmountForOfferings	150000000
CY2021	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	4301869
CY2021Q4	us-gaap	Share Price SharePrice	6.53
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	27200000
CY2020	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	49000
CY2021	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	90000
CY2021Q4	ctso	Number Of Long Term Incentive Plans NumberOfLongTermIncentivePlans	2
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	4021000
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3514000
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1666000
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3658462
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	5.82
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	1557300
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	7.19
CY2019	ctso	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Granted In Period Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingGrantedInPeriodWeightedAverageRemainingContractualTerm	P9Y6M
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	747671
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	7.39
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	4.16
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	233582
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	4.09
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	4218189
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	6.16
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P7Y
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	1579106
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	6.37
CY2020	ctso	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Granted In Period Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingGrantedInPeriodWeightedAverageRemainingContractualTerm	P9Y
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	34644
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	6.36
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P7Y3M3D
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	2051980
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	8.78
CY2021	ctso	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Granted In Period Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingGrantedInPeriodWeightedAverageRemainingContractualTerm	P9Y3M18D
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	138037
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	6.73
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	21756
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	7.46
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	171413
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	5.73
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	6885978
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	7.09
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P7Y1M24D
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.0139
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice	4.19
CY2021Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	3891132
CY2021Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	6.45
CY2021Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	166383
CY2020Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	1998117
CY2020Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	4.12
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	2051980
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	5.26
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares	138037
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue	4.05
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares	917214
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue	4.34
CY2021Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	2994846
CY2021Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	4.68
CY2021Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	5932000
CY2021	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P41M
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	1114325
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	3883000
CY2021Q2	ctso	Share Based Compensation Option Milestones Met By The Company Percentage ShareBasedCompensationOptionMilestonesMetByTheCompanyPercentage	0.88
CY2021	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	1070000
CY2020	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	914000
CY2019Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Outstanding SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding	8033988
CY2020Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Outstanding SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding	19504184
CY2021Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Outstanding SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding	11359928
CY2021Q4	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	0
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	355000
CY2014Q2	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	1
CY2021	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	0.20
CY2021	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.05
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	59200
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	43800
CY2021Q1	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	10598847
CY2021Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	12024069
CY2021Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	9760416
CY2021Q4	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	10782195
CY2021Q1	us-gaap	Gross Profit GrossProfit	7847403
CY2021Q2	us-gaap	Gross Profit GrossProfit	9313852
CY2021Q3	us-gaap	Gross Profit GrossProfit	7297470
CY2021Q4	us-gaap	Gross Profit GrossProfit	7659452
CY2021Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-2852191
CY2021Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-4924733
CY2021Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-5406000
CY2021Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-9561821
CY2021Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-4167821
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-4677530
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-6406285
CY2021Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-9307012
CY2021Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.10
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.11
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.15
CY2021Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.25
CY2020Q1	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	8707310
CY2020Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	9794903
CY2020Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	10546612
CY2020Q4	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	11955776
CY2020Q1	us-gaap	Gross Profit GrossProfit	6322468
CY2020Q2	us-gaap	Gross Profit GrossProfit	6545136
CY2020Q3	us-gaap	Gross Profit GrossProfit	7656230
CY2020Q4	us-gaap	Gross Profit GrossProfit	9428358
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-2478754
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-3297667
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-1959652
CY2020Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-2634264
CY2020Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-3452779
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-2866956
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-839729
CY2020Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-677724
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.10
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.08
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.02
CY2020Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.00
CY2019Q1	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	5191629
CY2019Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	6232526
CY2019Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	6095007
CY2019Q4	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	7430311
CY2019Q1	us-gaap	Gross Profit GrossProfit	3453040
CY2019Q2	us-gaap	Gross Profit GrossProfit	4398160
CY2019Q3	us-gaap	Gross Profit GrossProfit	4398733
CY2019Q4	us-gaap	Gross Profit GrossProfit	5335621
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-4285193
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-3629997
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-5627546
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-5431328
CY2019Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-4883827
CY2019Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-3547405
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-6885061
CY2019Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-3949351
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.15
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.11
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.21
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.13

Files In Submission

Name	View Source	Status
0001410578-22-000331-index-headers.html	Edgar Link	pending
0001410578-22-000331-index.html	Edgar Link	pending
0001410578-22-000331.txt	Edgar Link	pending
0001410578-22-000331-xbrl.zip	Edgar Link	pending
ctso-20211231.xsd	Edgar Link	pending
ctso-20211231x10k.htm	Edgar Link	pending
ctso-20211231x10k001.jpg	Edgar Link	pending
ctso-20211231x10k_htm.xml	Edgar Link	completed
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ctso-20211231xex31d1.htm	Edgar Link	pending
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ctso-20211231xex32d1.htm	Edgar Link	pending
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ctso-20211231xex4d1.htm	Edgar Link	pending
ctso-20211231_cal.xml	Edgar Link	unprocessable
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MetaLinks.json	Edgar Link	pending
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$CTSO
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2021 Q4 Form 10-K Financial Statement

#000141057822000331 Filed on March 10, 2022

Income Statement

Balance Sheet

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Facts In Submission

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$CTSO Cytosorbents Corp Stock $ctso

2021 Q4 Form 10-K Financial Statement

#000141057822000331 Filed on March 10, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CTSO
Cytosorbents Corp Stock $ctso