Amount of which unconverted convertible senior notes expressed as multiple.

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Consecutive trading days.

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Conversion price in effect on measuring date.

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Extend maturity date of bridge loan.

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Interest Paid, Withholding Tax Payable

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Loan amendment fees.

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Percentage of fees as of outstanding principal amount.

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Unconverted Portion of Notes

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Withholding Tax Payable, including Interest On Income Tax

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

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Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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The number of equity instruments that the holder of the debt instrument would receive if the debt was converted to equity.

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Face (par) amount of debt instrument at time of issuance.

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Amount of the required periodic payments applied to principal.

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Amount of the cost of borrowed funds accounted for as interest expense.

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The amount of cash paid for interest during the period.

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The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

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The portion of the carrying amount of short-term borrowings outstanding as of the balance sheet date which accrues interest at a set, unchanging rate.

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Amount of statutory penalties accrued for a tax position claimed or expected to be claimed by the entity, in its tax return.

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Amount of interest expense accrued for an underpayment of income taxes.

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Long-Term Loan, Related Party (Details Textual) (USD $)	0 Months Ended			1 Months Ended	12 Months Ended			41 Months Ended
Long-Term Loan, Related Party (Details Textual) (USD $)	Dec. 18, 2014	Aug. 08, 2012	Nov. 17, 2010	May 31, 2011	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2014
Debt Instrument [Line Items]
Principal amount of promissory note			$ 1,000us-gaap_DebtInstrumentFaceAmount
Debt Instrument, Periodic Payment, Principal				17,600,000
Extend maturity date of Bridge loan	Mar. 15, 2015	Dec. 31, 2014
Principal sum evidenced by the Note such that the unconverted portion multiple			1.00
Principal amount, which represents a conversion price (usd per share)					$ 2.6164
Debt Instrument, Convertible, Conversion Ratio			382.202837
Interest expense					9,128,000us-gaap_InterestExpense	1,331,000us-gaap_InterestExpense	1,063,000us-gaap_InterestExpense
Amendment One [Member]
Debt Instrument [Line Items]
Bridge Loan bears interest rate		7.50%
Debt instrument loan agreement one-time fee		174,261
Percentage of fees as of outstanding principal amount		1.00%
Amendment Two [Member]
Debt Instrument [Line Items]
Debt instrument loan agreement one-time fee	25,000
Legal fees and expenses paid	20,000
Amendment Three [Member]
Debt Instrument [Line Items]
Debt instrument loan agreement one-time fee					25,000
Legal fees and expenses paid					20,000
Kien Huat Realty Limited
Debt Instrument [Line Items]
Principal amount of promissory note			1,000
Unconverted Portion of Notes			1,000
Non-assessable shares of Empire's common stock at a conversion rate (shares)			377
Principal amount, which represents a conversion price (usd per share)			$ 2.65
Average of last reported bid prices common stock for consecutive trading days			20 days
Conversion Price in Effect on Measuring Date			200.00%
Interest Paid								4,100,000
Foreign Entity Affiliate, Interest, Tax Withholding Percentage								30.00%
Interest Paid, Withholding Tax Payable								1,200,000
Withholding Tax Payable, including Interest On Income Tax								1,300,000
Unrecognized Tax Benefits, Interest on Income Taxes Accrued					114,000
Unrecognized Tax Benefits, Income Tax Penalties Accrued					400,000
Bridge Loan [Member]
Debt Instrument [Line Items]
Principal amount of promissory note			35,000,000
Bridge Loan bears interest rate			5.00%
Interest expense					$ 1,300,000	$ 1,300,000	$ 1,100,000