The amount of repayment of capital contribution to settle with a loan from related party.

No definition available.

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- Definition

The cash outflows associated with repayment of capital contribution to founders.

+ References

No definition available.

+ Details

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- Definition

The amount of return of capital contributed by founders.

+ References

No definition available.

+ Details

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- Definition

The aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=82887183&loc=d3e6676-107765

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(k)(1))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3)(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(11))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Period Type:	instant

- Definition

For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7(e))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

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Period Type:	instant

- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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

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- Details

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- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=ryb_BeijingMeihuiliheTechnologyCoLtdMember
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- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=ryb_BeijingDongrundadiCoLtdMember
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- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_BoardOfDirectorsChairmanMember
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Data Type:	na
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- Details

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RELATED PARTY TRANSACTION (Details) - USD ($) $ in Thousands		1 Months Ended	12 Months Ended
	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Mar. 31, 2017
RELATED PARTY TRANSACTION
Rental expense recorded:			$ 293	$ 294	$ 310
Amounts due from related parties:	$ 126		126	3,816
Return of capital		$ 2,000	2,000
Return of capital settled against a loan form a related party			1,010
Payment of remaining balance of return of capital	990		990
Ms. Zhiying Li
RELATED PARTY TRANSACTION
Rental expense recorded:			293	294	$ 310
Beijing Meihuilihe Technology Co., Ltd
RELATED PARTY TRANSACTION
Amounts due from related parties:				3,330
Beijing Dongrundadi Co., Ltd.
RELATED PARTY TRANSACTION
Amounts due from related parties:				72
Mr. Chimin Cao
RELATED PARTY TRANSACTION
Amounts due from related parties:				29
Mr. Yanlai Shi
RELATED PARTY TRANSACTION
Amounts due from related parties:				14
Beijing Jindianshike Trading Co., Ltd.
RELATED PARTY TRANSACTION
Amounts due from related parties:				271
Hainan RYB
RELATED PARTY TRANSACTION
Amounts due from related parties:	$ 126		$ 126	$ 100
Glossy Growth
RELATED PARTY TRANSACTION
Loan receivable						$ 1,010
Return of capital		2,000
Return of capital settled against a loan form a related party		$ 1,010