Number of options outstanding, including both vested and non-vested options.

No definition available.

Name:	rcrt_OptionsOutstandingNumberOutstanding
Namespace Prefix:	rcrt_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Options Outstanding, Exercise Prices.

+ References

No definition available.

+ Details

Name:	rcrt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingsExercisePrice
Namespace Prefix:	rcrt_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

Name:	us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=rcrt_StockOptionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=rcrt_ExercisePriceTenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=rcrt_ExercisePriceNineMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=rcrt_ExercisePriceEightMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=rcrt_ExercisePriceSixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=rcrt_ExercisePriceFiveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=rcrt_ExercisePriceFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=rcrt_ExercisePriceThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=rcrt_ExercisePriceSevenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=rcrt_ExercisePricesTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=rcrt_ExercisePricesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=rcrt_ExercisePriceTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

STOCK OPTIONS AND WARRANTS (Details 2) - $ / shares	9 Months Ended	12 Months Ended
STOCK OPTIONS AND WARRANTS (Details 2) - $ / shares	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Options outstanding, weighted average exercise price	$ 4.61	$ 3.36	$ 11.03	$ 10,924.00
Stock Option [Member]
Options outstanding, number outstanding	2,362,390	676,304
Options exercisable, number exercisable	497,283	381,293
Exercise Price 12.00 [Member] \| Stock Option [Member]
Option outstanding, weighted average remaining contractual life (years)		2 years 5 months 26 days
Options outstanding, number outstanding		6,000
Options Outstanding, exercise prices		$ 12
Options exercisable, number exercisable		6,000
Options exercisable, Weighted average exercise price		$ 12
Exercise Price 7.50-$10.00 [Member] \| Stock Option [Member]
Option outstanding, weighted average remaining contractual life (years)		3 years 3 months 18 days
Options outstanding, number outstanding		29,870
Options Outstanding, exercise prices		$ 8.425
Options exercisable, number exercisable		29,870
Options exercisable, Weighted average exercise price		$ 8.43
Exercise Price 6.25 [Member] \| Stock Option [Member]
Option outstanding, weighted average remaining contractual life (years)		4 years 1 month 28 days
Options outstanding, number outstanding		192,936
Options Outstanding, exercise prices		$ 6.25
Options exercisable, number exercisable		20,435
Options exercisable, Weighted average exercise price		$ 6.25
Exercise Price $16.00 [Member] \| Stock Option [Member]
Option outstanding, weighted average remaining contractual life (years)	1 year 4 months 20 days	3 years 3 months 14 days
Options outstanding, number outstanding	2,500	192,968
Options exercisable, number exercisable	2,500	192,968
Options exercisable, Weighted average exercise price	$ 16	$ 16
Options outstanding, weighted average exercise price	$ 16	$ 16
Exercise Price $8.00 - $9.00 [Member] \| Stock Option [Member]
Option outstanding, weighted average remaining contractual life (years)	4 years 6 months 18 days
Options outstanding, number outstanding	180,200
Options exercisable, number exercisable	48,733
Options exercisable, Weighted average exercise price	$ 8.41
Options outstanding, weighted average exercise price	$ 8.43
Exercise Price $6.00 - $7.00 [Member] \| Stock Option [Member]
Option outstanding, weighted average remaining contractual life (years)	3 years 6 months 18 days
Options outstanding, number outstanding	212,934
Options exercisable, number exercisable	13,767
Options exercisable, Weighted average exercise price	$ 6.37
Options outstanding, weighted average exercise price	$ 6.30
Exercise Price $4.00 - $5.00 [Member] \| Stock Option [Member]
Option outstanding, weighted average remaining contractual life (years)	4 years 8 months 8 days
Options outstanding, number outstanding	943,000
Options exercisable, number exercisable	129,000
Options exercisable, Weighted average exercise price	$ 4.62
Options outstanding, weighted average exercise price	$ 4.60
Exercise Price 2.50-$500.00 [Member] \| Stock Option [Member]
Option outstanding, weighted average remaining contractual life (years)		3 years 4 months 6 days
Options outstanding, number outstanding		254,530
Options exercisable, number exercisable		132,020
Options exercisable, Weighted average exercise price		$ 4.03
Options outstanding, weighted average exercise price		$ 4.175
Exercise Prices $3.00 - $4.00 [Member] \| Stock Option [Member]
Option outstanding, weighted average remaining contractual life (years)	4 years 5 months 19 days
Options outstanding, number outstanding	797,419
Options Outstanding, exercise prices	$ 3.91
Options exercisable, number exercisable	76,946
Options exercisable, Weighted average exercise price	$ 3.63
Exercise Prices 1.00 - $2.00 [Member] \| Stock Option [Member]
Option outstanding, weighted average remaining contractual life (years)	2 years 5 months 12 days
Options outstanding, number outstanding	35,869
Options exercisable, number exercisable	35,869
Options exercisable, Weighted average exercise price	$ 1.44
Options outstanding, weighted average exercise price	$ 1.44
Exercise Price $2.56 [Member] \| Stock Option [Member]
Options outstanding, number outstanding	190,468
Options exercisable, number exercisable	190,468
Options exercisable, Weighted average exercise price	$ 2.56
Options outstanding, weighted average exercise price	$ 2.56