Cost incurred by registrant related to building improvement program.

No definition available.

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

- Definition

Due to lessee.

+ References

No definition available.

+ Details

Name:	eastas_DueToLessee
Namespace Prefix:	eastas_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Estimated cost of building improvement program.

+ References

No definition available.

+ Details

Name:	eastas_EstimatedCostOfBuildingImprovementProgram
Namespace Prefix:	eastas_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Estimated cost of initial building improvement program on completion.

+ References

No definition available.

+ Details

Name:	eastas_EstimatedCostOfInitialBuildingImprovementProgramOnCompletion
Namespace Prefix:	eastas_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Further increase in estimated cost of building improvement.

+ References

No definition available.

+ Details

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Namespace Prefix:	eastas_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Increase in estimated cost of building improvement program.

+ References

No definition available.

+ Details

Name:	eastas_IncreaseInEstimatedCostOfBuildingImprovementProgram
Namespace Prefix:	eastas_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Mortgage loan, monthly payment amount including principal and interest.

+ References

No definition available.

+ Details

Name:	eastas_MortgageLoanMonthlyPaymentAmount
Namespace Prefix:	eastas_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Mortgage loan, monthly payment for additional loan.

+ References

No definition available.

+ Details

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Namespace Prefix:	eastas_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Mortgage loans on real estate amortization schedule.

+ References

No definition available.

+ Details

Name:	eastas_MortgageLoansOnRealEstateAmortizationSchedule
Namespace Prefix:	eastas_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Mortgage loans on real estate amortization schedule on additional loan.

+ References

No definition available.

+ Details

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Namespace Prefix:	eastas_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Mortgage loans on real estate amount drawn at closing.

+ References

No definition available.

+ Details

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Namespace Prefix:	eastas_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Mortgage loans on real estate initial amount drawn.

+ References

No definition available.

+ Details

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Namespace Prefix:	eastas_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Mortgage loans on real estate mortgage financing cost.

+ References

No definition available.

+ Details

Name:	eastas_MortgageLoansOnRealEstateMortgageFinancingCost
Namespace Prefix:	eastas_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	eastas_MortgagesPayableTextualAbstract
Namespace Prefix:	eastas_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Repayment term of mortgage loan without prepayment penalty.

+ References

No definition available.

+ Details

Name:	eastas_RepaymentTermOfMortgageLoanWithoutPrepaymentPenalty
Namespace Prefix:	eastas_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Subsequent withdrawal of remaining amount.

+ References

No definition available.

+ Details

Name:	eastas_SubsequentWithdrawalOfRemainingAmount
Namespace Prefix:	eastas_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

- Definition

Unpaid leasing costs.

+ References

No definition available.

+ Details

Name:	eastas_UnpaidLeasingCosts
Namespace Prefix:	eastas_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number APB14-1

-Paragraph 31

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

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 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

+ Details

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

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13476-108611

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Balance Type:	credit
Period Type:	instant

- Definition

Increase of additional borrowings on existing and new debt instruments.

+ References

Reference 1: 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.(f))

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph f

-Article 4

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Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value amount of debt instrument that was repurchased.

+ References

No definition available.

+ Details

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

- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes 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 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 7

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20, 22

-Article 5

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 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-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

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 47

-Paragraph 10

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Balance Type:	credit
Period Type:	instant

- Definition

The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 948

-SubTopic 310

-Section S99

-Paragraph 1

-Subparagraph (SX 210.12-29)

-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 10

-Section S99

-Paragraph 6

-Subparagraph (SX 210.5-04.(c) Schedule IV)

-URI http://asc.fasb.org/extlink&oid=6882300&loc=d3e5864-122674

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 29

-Article 12

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph c

-Subparagraph Schedule IV

-Article 5

+ Details

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- Definition

Carrying amount of collateralized debt obligations with maturities initially due after one year or beyond the operating cycle, if longer, excluding the current portion. Obligations include, but not limited to, mortgage loans, chattel loans, and other borrowings secured by assets.

+ 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 SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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Mortgages Payable (Details Textual) (USD $)	6 Months Ended	12 Months Ended					6 Months Ended		1 Months Ended
Mortgages Payable (Details Textual) (USD $)	Jun. 30, 2012	Dec. 31, 2004	Dec. 31, 2000	Dec. 31, 1999	Dec. 31, 2011	Nov. 29, 2004	Jun. 30, 2012 First mortgage [Member]	Nov. 29, 2004 First mortgage [Member]	Nov. 05, 2009 Second mortgage [Member]	Nov. 05, 2014 Second mortgage [Member]	Jun. 30, 2012 Second mortgage [Member]	Nov. 29, 2004 Second mortgage [Member]	Nov. 05, 2014 Senior Debt Obligations [Member]	Jun. 30, 2012 Senior Debt Obligations [Member]	Jun. 30, 2012 Secured Debt [Member]	Nov. 05, 2009 Secured Debt [Member]
Debt Instrument [Line Items]
Mortgage loan, additional									$ 16,000,000
Mortgage loan, pay off amount								12,020,814				27,979,186
Mortgage loan, interest rate	5.34%						7.00%
Mortgage loan, balance amount											15,330,985			74,979,252
Principal amount of senior mortgage loan at maturity										14,613,782			69,797,589
Fair value of mortgage debt															95,130,697
Total financing cost on mortgage																100,000,000
Mortgages payable (Textual) [Abstract]
Mortgage loan face value						84,000,000
Mortgage value, amount drawn at closing	49,000,000
Mortgage loans, remaining amount available	35,000,000
Mortgage value, initial amount drawn						49,000,000
Mortgage loan, monthly payment amount	507,838
Mortgage loan, amortization schedule	25 years
Mortgage loan, monthly payment for additional loan	113,085
Mortgage loan, amortization schedule on additional loan	25 years
Repayment term of mortgage loan without prepayment penalty	60 days
Mortgage financing cost	2,873,632
Estimated cost of building improvement program				22,800,000
Increase in estimated cost of building improvement program			28,000,000
Further increase in estimated cost of building improvement		100,000,000
Cost incurred by registrant related to building improvement program	76,738,984
Estimated cost of initial building improvement program on completion	100,000,000
Payable to Lessee, a related party	2,231,755				720,066
Unpaid leasing costs	$ 2,231,589