Share-based Compensation Arrangement by Share-based Payment Award, Number of Award Recipients

No definition available.

Name:	rlog_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAwardRecipients
Namespace Prefix:	rlog_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Number of Executive Officers Asked to Receive Shares in Lieu of Cash Compensation

+ References

No definition available.

+ Details

Name:	rlog_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfExecutiveOfficersAskedToReceiveSharesInLieuOfCashCompensation
Namespace Prefix:	rlog_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Share Based Compensation Non Option Total Estimated Cost

+ References

No definition available.

+ Details

Name:	rlog_ShareBasedCompensationNonOptionTotalEstimatedCost
Namespace Prefix:	rlog_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Share-based Goods and Nonemployee Services Transaction, Securities Issued1

+ References

No definition available.

+ Details

Name:	rlog_ShareBasedGoodsAndNonemployeeServicesTransactionSecuritiesIssued1
Namespace Prefix:	rlog_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Share Price, Average of High and Low Price

+ References

No definition available.

+ Details

Name:	rlog_SharePriceAverageOfHighAndLowPrice
Namespace Prefix:	rlog_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Measurement Period

+ References

No definition available.

+ Details

Name:	rlog_SharebasedCompensationArrangementbySharebasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMeasurementPeriod
Namespace Prefix:	rlog_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 14.F)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14
-Section F

+ Details

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

- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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

- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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

- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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

- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iv)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
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

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

- Definition

Net number of non-option equity instruments granted to participants.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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

- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

+ Details

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

- Definition

Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(4)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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

- Definition

Number of share instruments newly issued under a share-based compensation plan.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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

- 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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&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_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=rlog_LongTermIncentivePlan2007Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TitleOfIndividualAxis=us-gaap_ManagementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TitleOfIndividualAxis=rlog_CanadianEmployeesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=rlog_April112012GrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=rlog_February222013GrantsMemberMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=rlog_June52013GrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=rlog_July222014GrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=rlog_Oct272015GrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=rlog_Oct272015GrantsBMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=rlog_SharesIssuedInLieuOfCashCompensationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

STOCKHOLDERS' EQUITY (Share-based Compensation) (Details)														1 Months Ended		3 Months Ended		9 Months Ended			12 Months Ended						15 Months Ended	78 Months Ended
	Dec. 08, 2015 shares	Oct. 27, 2015 executive $ / shares shares	Mar. 31, 2015 shares	Jul. 22, 2014 executive $ / shares shares	Jun. 27, 2014 USD ($) $ / shares shares	Jun. 05, 2013 executive $ / shares shares	Feb. 22, 2013 executive $ / shares shares	Feb. 15, 2013 shares	Apr. 11, 2012 executive $ / shares shares	Sep. 16, 2010 shares	Nov. 16, 2009 shares	Jul. 31, 2008 shares	Feb. 13, 2008 shares	Jul. 31, 2008 shares	Feb. 29, 2008 shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2014 USD ($) $ / shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2014 USD ($) $ / shares	Dec. 31, 2008 shares	Mar. 31, 2015 shares	Mar. 31, 2014 shares	Mar. 31, 2013 shares	Mar. 31, 2012 shares	Mar. 31, 2011 shares	Mar. 31, 2009 executive	Mar. 31, 2010 shares	Dec. 31, 2015 $ / shares shares	Feb. 11, 2011 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share price, average of high and low price \| $ / shares																													$ 5.175
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility rate measurement period																										6 months
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term																		2 years 4 months
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested, Weighted Average Value \| $ / shares																$ 5.99	$ 5.99	$ 5.99	$ 5.99									$ 5.99
Long Term Incentive Plan 2007 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized																2,500,000		2,500,000										2,500,000
Number of shares available for grant			429,634													308,399		308,399			429,634							308,399
Shares issued to non-employees													12,909					51,553		15,948	26,067	19,256	10,854	10,722	14,007		37,144
Long Term Incentive Plan 2007 [Member] \| Management [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded		111,025										478,232
Number of key executives to receive awards \| executive		2
Long Term Incentive Plan 2007 [Member] \| Canadian employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded																												204,336
Expense recorded \| $																$ 0	$ 0	$ 0	$ 0
Long Term Incentive Plan 2007 [Member] \| Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expense recorded \| $																$ 0	0	$ 0	0
Award vesting period																		3 years
Options expiration period																		10 years
Expected dividend rate																		0.00%
Risk free interest rate																										4.14%
Expected volatility rate																										39.49%
Number of options outstanding																173,019		173,019										173,019
Options granted														236,586	243,199
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period																		306,766
Long Term Incentive Plan 2007 [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded			10,559
Expense recorded \| $																$ 15,000	20,000	$ 45,000	40,000
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments Granted					30,050
Unrecognized compensation cost at March 31 \| $					$ 204,000
Unvested, Weighted Average Value \| $ / shares					$ 5.99
April 11, 2012 Grants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded									45,754
Share price, average of high and low price \| $ / shares									$ 8.68
Expense recorded \| $																0	33,000	0	99,000
Number of key executives to receive awards \| executive									2
Award vesting period									3 years
February 22, 2013 Grants [Member] [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded							32,387
Share price, average of high and low price \| $ / shares							$ 5.96
Expense recorded \| $																0	23,000	0	68,000
Number of key executives to receive awards \| executive							4
Award vesting period							2 years
June 5, 2013 Grants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded						54,337
Share price, average of high and low price \| $ / shares						$ 5.55
Expense recorded \| $																40,000	26,000	91,000	76,000
Number of key executives to receive awards \| executive						6
Award vesting period						3 years
July 22, 2014 Grants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded				105,189
Share price, average of high and low price \| $ / shares				$ 5.90
Expense recorded \| $																129,000	60,000	263,000	94,000
Number of key executives to receive awards \| executive				10
Award vesting period				3 years
Oct 27 2015 Grants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded		4,429
Share price, average of high and low price \| $ / shares		$ 2.19
Expense recorded \| $																1,000	0	1,000	0
Number of key executives to receive awards \| executive		1
Award vesting period		3 years
Oct 27 2015 Grants B [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded		10,871
Share price, average of high and low price \| $ / shares		$ 2.19
Expense recorded \| $																$ 1,000	$ 0	$ 1,000	$ 0
Number of key executives to receive awards \| executive		1
Award vesting period		3 years
Shares Issued in Lieu of Cash Compensation [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded	61,622							94,993		15,153	158,325
Number of executive officers asked to receive shares in lieu of cash compensation \| executive																										5