FINANCE RECEIVABLES - Schedule by Year of Origination (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Jun. 30, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Up to 1 Year Ago	$ 4,437	$ 5,035
Between 1 and 2 Years Ago	5,197	4,794
Between 2 and 3 Years Ago	6,127	5,544
Between 3 and 4 Years Ago	1,813	2,844
Between 4 and 5 Years Ago	1,421	583
More than 5 Years Ago	87	31
Total	19,082	18,831
High ratio customers
Financing Receivable, Credit Quality Indicator [Line Items]
Up to 1 Year Ago	4,095
Between 1 and 2 Years Ago	4,851
Between 2 and 3 Years Ago	5,102
Between 3 and 4 Years Ago	1,437
Between 4 and 5 Years Ago	1,294
More than 5 Years Ago	40
Total	16,819
Low ratio customers
Financing Receivable, Credit Quality Indicator [Line Items]
Up to 1 Year Ago	342
Between 1 and 2 Years Ago	346
Between 2 and 3 Years Ago	1,025
Between 3 and 4 Years Ago	376
Between 4 and 5 Years Ago	127
More than 5 Years Ago	47
Total	2,263
Current
Financing Receivable, Credit Quality Indicator [Line Items]
Up to 1 Year Ago	4,353	4,950
Between 1 and 2 Years Ago	4,980	4,406
Between 2 and 3 Years Ago	5,257	4,811
Between 3 and 4 Years Ago	1,669	2,730
Between 4 and 5 Years Ago	1,381	555
More than 5 Years Ago	56	22
Total	17,696	17,474
30 days and under
Financing Receivable, Credit Quality Indicator [Line Items]
Up to 1 Year Ago	14	40
Between 1 and 2 Years Ago	31	66
Between 2 and 3 Years Ago	84	121
Between 3 and 4 Years Ago	17	28
Between 4 and 5 Years Ago	5	11
More than 5 Years Ago	1	1
Total	152	267
31-60 days
Financing Receivable, Credit Quality Indicator [Line Items]
Up to 1 Year Ago	25	13
Between 1 and 2 Years Ago	89	15
Between 2 and 3 Years Ago	113	13
Between 3 and 4 Years Ago	41	0
Between 4 and 5 Years Ago	4	0
More than 5 Years Ago	1	0
Total	273	41
61-90 days
Financing Receivable, Credit Quality Indicator [Line Items]
Up to 1 Year Ago	8	10
Between 1 and 2 Years Ago	30	44
Between 2 and 3 Years Ago	78	62
Between 3 and 4 Years Ago	8	19
Between 4 and 5 Years Ago	2	3
More than 5 Years Ago	2	0
Total	128	138
Greater than 90 days
Financing Receivable, Credit Quality Indicator [Line Items]
Up to 1 Year Ago	37	22
Between 1 and 2 Years Ago	67	263
Between 2 and 3 Years Ago	595	537
Between 3 and 4 Years Ago	78	67
Between 4 and 5 Years Ago	29	14
More than 5 Years Ago	27	8
Total	$ 833	$ 911

Amount of financing receivable originated more than five years prior to current fiscal year.

Name:	us-gaap_FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of financing receivable originated four years prior to current fiscal year.

+ References

+ Details

Name:	us-gaap_FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of financing receivable originated in current fiscal year.

+ References

+ Details

Name:	us-gaap_FinancingReceivableOriginatedInCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of financing receivable originated in fiscal year prior to current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919232-210447

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 55
-Paragraph 79
-URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448

+ Details

Name:	us-gaap_FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of financing receivable originated three years prior to current fiscal year.

+ References

+ Details

Name:	us-gaap_FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of financing receivable originated two years prior to current fiscal year.

+ References

+ Details

Name:	us-gaap_FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before allowance for credit loss, of financing receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 55
-Paragraph 79
-URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 55
-Paragraph 80
-URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448

+ Details

Name:	us-gaap_NotesReceivableGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=ctlp_HighRatioCustomersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=ctlp_LowRatioCustomersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=ctlp_FinancialAssetCurrentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables1To29DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables30To59DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables60To89DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: