Represents the term of lease in PYMD format.

No definition available.

Name:	rexi_LeaseTerm
Namespace Prefix:	rexi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of Capital Leases

+ References

No definition available.

+ Details

Name:	rexi_NumberofCapitalLeases
Namespace Prefix:	rexi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 7

+ Details

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

- Definition

Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

+ 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 210.9-03.13,16)
-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 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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

- 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

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

- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

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

- Definition

Amount of the required periodic payments applied to interest.

+ References

+ Details

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

- Details

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

- Details

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

- Details

Name:	us-gaap_MajorPropertyClassAxis=rexi_ComputerEquipmentGroupOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorPropertyClassAxis=rexi_ComputerEquipmentGroupTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorPropertyClassAxis=rexi_ComputerEquipmentGroupThreeandFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorPropertyClassAxis=rexi_ComputerEquipmentGroupThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorPropertyClassAxis=rexi_ComputerEquipmentGroupFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorPropertyClassAxis=rexi_ComputerEquipmentGroupFiveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

BORROWINGS (Other Debt - Real Estate and Corporate) (Details)	1 Months Ended						3 Months Ended	12 Months Ended
	Aug. 31, 2015 USD ($)	Mar. 31, 2015 USD ($)	Jan. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Jun. 30, 2014 USD ($)	Oct. 31, 2013 USD ($)	Mar. 31, 2015 lease	Dec. 31, 2015 USD ($)	Aug. 31, 2011 USD ($)
Debt Instrument [Line Items]
Borrowings				$ 20,970,000				$ 20,747,000
Mortgage debt [Member]
Debt Instrument [Line Items]
Borrowings				10,088,000				9,877,000	$ 10,700,000
Interest rate									6.36%
Monthly payments								71,331
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Borrowings								52,578
Periodic payment, interest				$ 1,985
Computer Equipment, Group One [Member] \| Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Interest rate						6.50%
Monthly payments						$ 16,377
Capital lease obligation								0
Lease term						2 years
Computer Equipment, Group Two [Member] \| Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Borrowings								70,777
Monthly payments					$ 4,205
Lease term					3 years
Computer Equipment, Group Three and Four [Member] \| Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Lease term							3 years
Number of capital leases \| lease							2
Computer Equipment, Group Three [Member] \| Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Borrowings								439,054
Monthly payments			$ 15,649
Computer Equipment, Group Four [Member] \| Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Borrowings								275,766
Monthly payments		$ 10,882
Computer Equipment, Group Five [Member] \| Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Borrowings								$ 31,821
Monthly payments	$ 1,008
Lease term	3 years