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8. Convertible Notes Payable (Details) (USD $)
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Mar. 31, 2015
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Dec. 31, 2014
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| Total convertible notes payable before discount | $ 13,573,907MEEC_ConvertibleNotesPayableBeforeDiscount | $ 16,080,295MEEC_ConvertibleNotesPayableBeforeDiscount |
| Less discounts | (5,492,975)MEEC_ConvertibleNotesPayableLessDiscounts | (8,275,321)MEEC_ConvertibleNotesPayableLessDiscounts |
| Total convertible notes payable | 8,080,932us-gaap_ConvertibleNotesPayable | 7,804,974us-gaap_ConvertibleNotesPayable |
| Less current portion | 3,408,150us-gaap_ConvertibleNotesPayableCurrent | 3,080,376us-gaap_ConvertibleNotesPayableCurrent |
| Convertible notes payable, net of current portion | 4,672,782us-gaap_ConvertibleLongTermNotesPayable | 4,724,598us-gaap_ConvertibleLongTermNotesPayable |
| Unsecured Convertible Promissory Notes [Member] | ||
| Total convertible notes payable before discount |
3,408,150MEEC_ConvertibleNotesPayableBeforeDiscount / us-gaap_ShortTermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember |
3,245,499MEEC_ConvertibleNotesPayableBeforeDiscount / us-gaap_ShortTermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember |
| Unsecured Convertible Promissory Notes One [Member] | ||
| Total convertible notes payable before discount |
693,673MEEC_ConvertibleNotesPayableBeforeDiscount / us-gaap_ShortTermDebtTypeAxis = MEEC_ConvertibleNotesPayableOneMember |
654,408MEEC_ConvertibleNotesPayableBeforeDiscount / us-gaap_ShortTermDebtTypeAxis = MEEC_ConvertibleNotesPayableOneMember |
| Secured Convertible Promissory Notes [Member] | ||
| Total convertible notes payable before discount |
1,695,000MEEC_ConvertibleNotesPayableBeforeDiscount / us-gaap_ShortTermDebtTypeAxis = MEEC_ConvertibleNotesPayableTwoMember |
1,705,000MEEC_ConvertibleNotesPayableBeforeDiscount / us-gaap_ShortTermDebtTypeAxis = MEEC_ConvertibleNotesPayableTwoMember |
| Secured Convertible Promissory Notes One [Member] | ||
| Total convertible notes payable before discount |
$ 7,777,084MEEC_ConvertibleNotesPayableBeforeDiscount / us-gaap_ShortTermDebtTypeAxis = MEEC_ConvertibleNotesPayableThreeMember |
$ 10,475,388MEEC_ConvertibleNotesPayableBeforeDiscount / us-gaap_ShortTermDebtTypeAxis = MEEC_ConvertibleNotesPayableThreeMember |
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- Definition
Convertible notes payable before discount. No definition available.
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- Definition
Convertible notes payable less discount. No definition available.
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- Definition
Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Convertible Notes Payable, excluding current portion. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying value as of the balance sheet date of the portion of long-term debt due within one year or the operating cycle if longer identified as Convertible Notes Payable. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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