XML 42 R31.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

Basis of Presentation and Summary of Significant Accounting Policies (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2024
Accounting Policies [Abstract] |
Schedule of Cash and Cash Equivalents | The following is a summary of cash, cash equivalents and restricted cash on the consolidated balance sheets (in thousands):
| June 30, 2024 |  | December 31, 2023
Cash | $ | 33,797 |  |  | $ | 22,407 |
Money market funds | 144,091 |  |  | 144,892 |
Restricted cash | 30 |  |  | 331 |
Total cash, cash equivalents and restricted cash as presented on the consolidated statements of cash flows | $ | 177,918 |  |  | $ | 167,630 |
Schedule of Restrictions on Cash and Cash Equivalents | The following is a summary of cash, cash equivalents and restricted cash on the consolidated balance sheets (in thousands):
| June 30, 2024 |  | December 31, 2023
Cash | $ | 33,797 |  |  | $ | 22,407 |
Money market funds | 144,091 |  |  | 144,892 |
Restricted cash | 30 |  |  | 331 |
Total cash, cash equivalents and restricted cash as presented on the consolidated statements of cash flows | $ | 177,918 |  |  | $ | 167,630 |
Schedule of Accounts Receivable, Allowance for Doubtful Debt | The changes in the allowance for credit losses for the six months ended June 30, 2024 were as follows (in thousands):
Allowance for credit losses |
Balance at December 31, 2023 | $ | 372 |
Utilization of allowance for credit losses | (198) |
Provision for credit losses | 125 |
Balance at June 30, 2024 | $ | 299 |
Schedule of Useful Life of Property Plant and Equipment | The Company’s estimated useful lives of its property and equipment are as follows:
| Estimated Useful Lives
Building | 20 years
Furniture and fixtures | 7 years
Laboratory equipment | 5 years
Office and computer equipment | 3 years
Leasehold improvements | Shorter of expected lease term or estimated useful life
Schedule of Finite-Lived Intangible Assets | The Company’s estimated useful lives of its intangible assets are as follows:
| Estimated Useful Lives
Patent | 20 years
Trademarks | 10 years
Tradename | 3 - 15 years
FCI developed technology | 1 - 6 years
Customer relationship | 7 - 9 years
Reagent licenses | 7 years
IP license | 5 years

X
- Definition Summary of Useful Life of Property Plant and Equipment. + References No definition available. + Details
Name: | ctkb_SummaryOfUsefulLifeOfPropertyPlantAndEquipmentTableTextBlock
Namespace Prefix: | ctkb_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_AccountsReceivableAllowanceForCreditLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of cash, cash equivalents, and investments. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482640/350-30-55-40 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 + Details
Name: | us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of cash and cash equivalents restricted as to withdrawal or usage. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 8 -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-8 + Details
Name: | us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration