XML 27 R15.htm IDEA: XBRL DOCUMENT
v3.21.1

Senior Unsecured Convertible Promissory Notes | 12 Months Ended
--- | ---
Dec. 31, 2020
Senior Unsecured Convertible Promissory Notes |
9. Senior Unsecured Convertible Promissory Notes | In December 2016, the Company entered into securities purchase agreements (each, a "Securities Purchase Agreement" and, collectively, the "Securities Purchase Agreements") with four accredited investors, pursuant to which it issued senior unsecured convertible promissory notes due December 31, 2018 (each, a "Convertible Note" and, collectively, the "Convertible Notes") in the aggregate amount of $132,500 in cash. Each Convertible Note accrued interest at 6%, was due December 31, 2018 and is convertible at the option of the holder at $0.15 per share. Each investor was also issued a warrant certificate (each, a "Warrant Certificate" and, collectively, the "Warrant Certificates"), pursuant to which such investor could acquire one share of Common Stock at $0.25 per share for each $0.25 invested in the applicable Convertible Note until December 31, 2018. The full amount interest under each Convertible Note was accrued and paid upon the maturity date or earlier conversion. The value allocated to the Warrant Certificates was the fair value determined using the Black-Scholes option valuation with the following assumptions: no dividend yield, expected annual volatility of 112%, risk free interest rate of 0.91% and an expected useful life of two years, the fair value of the Warrant Certificates was allocated $38,115 to Paid in Capital and $38,115 as Debt Issue Costs. The Notes' conversion features were valued at their intrinsic value in excess of the debt's allocated value of $38,115 and resulted in additional Paid in Capital and Debt Issue Costs. The Debt Issue Costs represent a direct deduction of the face amount the Convertible Notes was amortized as interest expense over the life of the Notes. In January 2017, the Company entered into securities purchase agreements (each, a "Securities Purchase Agreement" and, collectively, the "Securities Purchase Agreements") with two accredited investors, pursuant to which it issued senior unsecured convertible promissory notes due December 31, 2018 (each, a "Convertible Note" and, collectively, the "Convertible Notes") in the aggregate amount of $62,500 in cash. Each Convertible Note accrued interest at 6%, is due December 31, 2018 and is convertible at the option of the holder at $0.15 per share. Each investor was also issued a warrant certificate (each, a "Warrant Certificate" and, collectively, the "Warrant Certificates"), pursuant to which such investor could acquire one share of Common Stock at $0.25 per share for each $0.25 invested in the applicable Convertible Note until December 31, 2018. The full amount of interest under each Convertible Note is accrued and paid upon the maturity date or earlier conversion. The value allocated to the Warrant Certificates was the fair value determined using the Black-Scholes option valuation with the following assumptions: no dividend yield, expected annual volatility of 110%, risk free interest rate of 1.23% and an expected useful life of two years. The fair value of the Warrant Certificates was allocated $16,975 to Paid in Capital. The Notes' conversion features were valued at their intrinsic value in excess of the debt's allocated value of $16,975 and resulted in additional Paid in Capital. The Debt Issue Costs represent a direct deduction of the face amount the Convertible Notes and was amortized as interest expense over the life of the Notes. In September and October 2017, the Company entered into securities purchase agreements (each, a "Securities Purchase Agreement" and, collectively, the "Securities Purchase Agreements") with two accredited investors, pursuant to which it issued senior unsecured convertible promissory notes due December 31, 2019 (each, a "Convertible Note" and, collectively, the "Convertible Notes") in the aggregate amount of $65,000 in cash. Each Convertible Note accrued interest at 6%, is due December 31, 2019 and is convertible at the option of the holder at $0.15 per share. Each investor was also issued a warrant certificate (each, a "Warrant Certificate" and, collectively, the "Warrant Certificates"), pursuant to which such investor could acquire one share of Common Stock at $0.25 per share for each $0.25 invested in the applicable Convertible Note until December 31, 2019. The full amount of interest under each Convertible Note is accrued and paid upon the maturity date or earlier conversion. The value allocated to the September Warrant Certificates was the fair value determined using the Black-Scholes option valuation with the following assumptions: no dividend yield, expected annual volatility of 154%, risk free interest rate of 1.35% and an expected useful life of 28 months. The value allocated to the October Warrant Certificates was the fair value determined using the Black-Scholes option valuation with the following assumptions: no dividend yield, expected annual volatility of 180%, risk free interest rate of 1.51% and an expected useful life of 27 months. The fair value of the Warrant Certificates of $13,918 was allocated to Paid in Capital. The Notes' conversion features were valued at their intrinsic value in excess of the debt's allocated value of $13,918 and resulted in additional Paid in Capital. The Debt Issue Costs represent a direct deduction of the face amount the Convertible Notes and was amortized as interest expense over the life of the Notes. On December 31, 2018 the Company and investors for all of the Senior Unsecured Convertible Promissory Notes entered into amended agreements whereby the maturity dates for the notes maturing December 31, 2018 were extended to December 31, 2019, the conversion feature of the notes was modified from $0.15 per share of common stock to $0.10 per share. Additionally, the Warrant Certificates to purchase shares of common stock of the Company, which were issued as a part of the original agreements, were repriced from $0.25 per share to $0.15 per share. The value allocated to the Warrant Certificates modification was the fair value determined using the Black-Scholes option valuation with the following assumptions: no dividend yield, expected annual volatility of 167%, risk free interest rate of 2.63% and an expected useful life of 12 months. The change in fair value of the Warrant Certificates as a result of the modifications of $139,985 was allocated to Paid in Capital and included as an expense in 2018. The Notes conversion features were equivalent to their intrinsic value at the date of modification. In 2019, five of the Senior Unsecured Promissory Note investors exercised the conversion feature and converted their $157,500 notes for 1,575,000 shares of the Company's common stock. On December 31, 2019 the Company and investors for the remaining $102,500 Senior Unsecured Convertible Promissory Notes entered into amended agreements whereby the maturity dates for the notes maturing December 31, 2019 were extended to January 31, 2020. In January 2020 the remaining Senior Unsecured Promissory Note investors exercised the conversion feature and converted their $102,500 notes for 1,025,000 shares of the Company's common stock.

X
- References No definition available. + Details
Name: | empr_SeniorUnsecuredConvertiblePromissoryNotes
Namespace Prefix: | empr_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_SecuredLongtermDebtCurrentAndNoncurrentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration