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v3.23.2

Subsequent Events (Additional Information) (Details) - USD ($) $ in Thousands | Feb. 13, 2023 | Apr. 03, 2023 | Dec. 11, 2020
--- | --- | --- | ---
Subsequent Event [Line Items] |  |  |
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent | 55.00% |  |
Loan Agreement |  |  |
Subsequent Event [Line Items] |  |  |
Debt instrument final payment |  |  | $ 150
Subsequent Event [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent | 55.00% |  |
Restructuring Costs | $ 4,000 |  |
Subsequent Event [Member] | Term Loan |  |  |
Subsequent Event [Line Items] |  |  |
Debt Due |  | $ 11,667 |
Subsequent Event [Member] | Loan Agreement |  |  |
Subsequent Event [Line Items] |  |  |
Debt instrument final payment |  | $ 150 |

X
- Definition Debt Due + References No definition available. + Details
Name: | freq_DebtDue
Namespace Prefix: | freq_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The number of positions eliminated during the period as a percentage of total positions eliminated during the period in connection with the restructuring plan(s). + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481674/830-30-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 855 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483399/855-10-50-2 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=freq_TermLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |