Represents quarterly minimum revenue under debt covenant.

No definition available.

Name:	cutr_DebtCovenantQuarterlyMinimumRevenue
Namespace Prefix:	cutr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents anniversary fee amount for debt instrument.

+ References

No definition available.

+ Details

Name:	cutr_DebtInstrumentAnniversaryFeeAmount
Namespace Prefix:	cutr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The minimum amount of cash, cash equivalents, and marketable securities balances to stay in compliance with debt covenants.

+ References

No definition available.

+ Details

Name:	cutr_DebtInstrumentCovenantMinimumCashCashEquivalentsAndMarketableSecuritiesBalance
Namespace Prefix:	cutr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The minimum amount of unrestricted cash balances to stay in compliance with debt covenants.

+ References

No definition available.

+ Details

Name:	cutr_DebtInstrumentDebtCovenantMinimumUnrestrictedCashBalance
Namespace Prefix:	cutr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The minimum adjusted EBITDA required by the debt agreement.

+ References

No definition available.

+ Details

Name:	cutr_DebtInstrumentMinimumAdjustedEbitda
Namespace Prefix:	cutr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents percentage of qualifying accounts receivable for debt instrument.

+ References

No definition available.

+ Details

Name:	cutr_DebtInstrumentPercentageOfQualifyingAccountsReceivable
Namespace Prefix:	cutr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The maximum leverage ratio upon which the interest is determined.

+ References

No definition available.

+ Details

Name:	cutr_LeverageRatioMaximum
Namespace Prefix:	cutr_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of additional requestable maximum borrowing capacity for a line of credit.

+ References

No definition available.

+ Details

Name:	cutr_LineOfCreditFacilityAdditionalRequestableMaximumBorrowingCapacity
Namespace Prefix:	cutr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of the fee for available but unused credit capacity under the credit facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeeAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585

+ Details

Name:	us-gaap_ProceedsFromIssuanceOfLongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=cutr_PaycheckProtectionProgramCARESActMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=cutr_WellsFargoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=cutr_SiliconValleyBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=cutr_LoanAndSecurityAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_PrimeRateMember
Namespace Prefix:
Data Type:	na
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Period Type:

Note 13 - Debt (Details Textual) $ in Thousands				9 Months Ended
Note 13 - Debt (Details Textual) $ in Thousands	Jul. 09, 2020 USD ($)	Apr. 22, 2020 USD ($)	Mar. 11, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Mar. 19, 2020 USD ($)	Nov. 02, 2018 USD ($)	May 30, 2018 USD ($)
Proceeds from Issuance of Long-term Debt, Total				$ 7,167
Paycheck Protection Program CARES Act [Member]
Proceeds from Issuance of Long-term Debt, Total		$ 7,100
Revolving Line of Credit [Member] \| Wells Fargo [Member]
Line of Credit Facility, Maximum Borrowing Capacity							$ 15,000	$ 25,000
Line of Credit Facility, Additional Requestable Maximum Borrowing Capacity							$ 10,000
Revised Revolving Line of Credit [Member] \| Wells Fargo [Member]
Debt Instrument, Debt Covenant, Minimum Unrestricted Cash Balance			$ 15,000
Revolving Credit Facility [Member]
Debt Instrument, Minimum Adjusted EBITDA			$ 10,000
Leverage Ratio, Maximum			2.5
Debt Instrument, Covenant, Minimum Cash, Cash Equivalents, and Marketable Securities Balance						$ 15,000
Revolving Credit Facility [Member] \| Silicon Valley Bank [Member] \| Loan and Security Agreement [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 30,000
Debt Instrument, Term (Year)	4 years
Debt Instrument, Percentage of Qualifying Accounts Receivable	80.00%
Debt Instrument, Interest Rate, Stated Percentage	5.00%
Line of Credit Facility, Commitment Fee Amount	$ 300
Debt Instrument, Anniversary Fee Amount	$ 300
Long-term Line of Credit, Total				0
Debt Covenant, Quarterly Minimum Revenue				$ 90,000
Revolving Credit Facility [Member] \| Silicon Valley Bank [Member] \| Loan and Security Agreement [Member] \| Prime Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	1.75%