Long-Term Loan, Related Party	12 Months Ended
Dec. 31, 2013
Debt Disclosure [Abstract]
Long-Term Loan, Related Party	Long-Term Loan, Related Party On November 17, 2010, Empire entered into a loan agreement (the "Loan Agreement") with Kien Huat Realty III Limited ("Kien Huat"), our largest shareholder, pursuant to which Kien Huat made a loan (the "Kien Huat Loan") represented by a convertible promissory note (the "Kien Huat Note") in the principal amount of $35 million and which had an interest rate of 5%. The Company paid down the principle of the Kien Huat Note in the amount of approximately $17.6 million from the proceeds of the rights offering the Company consummated in May 2011. The maturity date for the Kien Huat Note was May 17, 2013. On August 8, 2012, the Company and Kien Huat entered into Amendment No. 1 (the “Amendment”) to the Loan Agreement. Pursuant to the Amendment, the maturity date of the loan made pursuant to the Loan Agreement (the “Loan”) was extended from May 17, 2013 to December 31, 2014. In consideration of the extension of the maturity date of the Loan, effective as of the Amendment Date, the rate of interest was amended to be 7.5% per annum in place of 5% per annum. In addition, the Company agreed to pay Kien Huat upon execution a one-time fee of $174,261, or 1% of the outstanding principal amount of the Loan as of the date of the Amendment. On December 18, 2013, the Company and Kien Huat entered into Amendment No. 2 (the “Second Amendment”) to the Loan Agreement, dated November 17, 2010 and amended on August 8, 2012, by and between the Company and Kien Huat (as amended, the “Loan Agreement”). Pursuant to the Second Amendment, the maturity date of the loan made pursuant to the Loan Agreement (the “Loan”) was extended from December 31, 2014 to March 15, 2015. In consideration of the extension of the maturity date of the Loan, the Company agreed to pay Kien Huat a onetime fee of $25,000. In addition, the Company agreed to pay the out-of-pocket legal fees and expenses incurred by Kien Huat in an amount not to exceed $20,000. Except for these amendments, the Loan Agreement remains unchanged and in full force and effect. Subject to and upon compliance with the provisions of the Loan Agreement, Kien Huat has the right to convert all or any portion of the principal sum evidenced by the Kien Huat Note such that the unconverted portion is $1,000 or a multiple of $1.00 in excess thereof into fully paid and non-assessable shares of Empire’s common stock at a conversion rate of initially 377 shares of common stock per $1,000 in principal amount, which represents a conversion price of approximately $2.65 per share, subject to adjustment in accordance with the Loan Agreement. If, as of any date during the term (the “Measuring Date”), the average of the last reported bid prices of Empire’s common stock for the 20 days consecutive trading days as defined in the Loan Agreement, ending on the trading day prior to the Measuring Date exceeds 200% of the conversion price in effect on the Measuring Date, then Empire is entitled to elect that Kien Huat convert all of the principal sum evidenced by the Kien Huat Note into shares of its common stock in accordance with the terms and provisions of the Loan Agreement. If Empire does not elect to force conversion of the Kien Huat Note and there have been no events of default as defined in the Loan Agreement, Empire may voluntarily prepay the Loan in whole or in part, with all interest accrued through the applicable period, absent notice from Kien Huat of its election to convert the Kien Huat Note. The Company consummated its rights offering on May 20, 2011 and the proceeds were used to satisfy approximately $17.6 million of the Loan. Pursuant to the Loan Agreement, the Company has satisfied the conditions to extend the maturity date of the Loan to May 17, 2013. The Company recognized approximately $1.3 million and $1.1 million in interest expense associated with the Loan during the years ended December 31, 2013 and 2012, respectively.

Long-Term Loan, Related Party

On November 17, 2010, Empire entered into a loan agreement (the "Loan Agreement") with Kien Huat Realty III Limited ("Kien Huat"), our largest shareholder, pursuant to which Kien Huat made a loan (the "Kien Huat Loan") represented by a convertible promissory note (the "Kien Huat Note") in the principal amount of $35 million and which had an interest rate of 5%. The Company paid down the principle of the Kien Huat Note in the amount of approximately $17.6 million from the proceeds of the rights offering the Company consummated in May 2011. The maturity date for the Kien Huat Note was May 17, 2013.

On August 8, 2012, the Company and Kien Huat entered into Amendment No. 1 (the “Amendment”) to the Loan Agreement. Pursuant to the Amendment, the maturity date of the loan made pursuant to the Loan Agreement (the “Loan”) was extended from May 17, 2013 to December 31, 2014. In consideration of the extension of the maturity date of the Loan, effective as of the Amendment Date, the rate of interest was amended to be 7.5% per annum in place of 5% per annum. In addition, the Company agreed to pay Kien Huat upon execution a one-time fee of $174,261, or 1% of the outstanding principal

amount of the Loan as of the date of the Amendment.

On December 18, 2013, the Company and Kien Huat entered into Amendment No. 2 (the “Second Amendment”) to the Loan Agreement, dated November 17, 2010 and amended on August 8, 2012, by and between the Company and Kien Huat (as amended, the “Loan Agreement”). Pursuant to the Second Amendment, the maturity date of the loan made pursuant to the Loan Agreement (the “Loan”) was extended from December 31, 2014 to March 15, 2015. In consideration of the extension of the maturity date of the Loan, the Company agreed to pay Kien Huat a onetime fee of $25,000. In addition, the Company agreed to pay the out-of-pocket legal fees and expenses incurred by Kien Huat in an amount not to exceed $20,000. Except for these amendments, the Loan Agreement remains unchanged and in full force and effect.

Subject to and upon compliance with the provisions of the Loan Agreement, Kien Huat has the right to convert all or any portion of the principal sum evidenced by the Kien Huat Note such that the unconverted portion is $1,000 or a multiple of $1.00 in excess thereof into fully paid and non-assessable shares of Empire’s common stock at a conversion rate of initially 377 shares of common stock per $1,000 in principal amount, which represents a conversion price of approximately $2.65 per share, subject to adjustment in accordance with the Loan Agreement.

If, as of any date during the term (the “Measuring Date”), the average of the last reported bid prices of Empire’s common stock for the 20 days consecutive trading days as defined in the Loan Agreement, ending on the trading day prior to the Measuring Date exceeds 200% of the conversion price in effect on the Measuring Date, then Empire is entitled to elect that Kien Huat convert all of the principal sum evidenced by the Kien Huat Note into shares of its common stock in accordance with the terms and provisions of the Loan Agreement. If Empire does not elect to force conversion of the Kien Huat Note and there have been no events of default as defined in the Loan Agreement, Empire may voluntarily prepay the Loan in whole or in part, with all interest accrued through the applicable period, absent notice from Kien Huat of its election to convert the Kien Huat Note.

The Company consummated its rights offering on May 20, 2011 and the proceeds were used to satisfy approximately $17.6 million of the Loan. Pursuant to the Loan Agreement, the Company has satisfied the conditions to extend the maturity date of the Loan to May 17, 2013. The Company recognized approximately $1.3 million and $1.1 million in interest expense associated with the Loan during the years ended December 31, 2013 and 2012, respectively.