Annual report pursuant to Section 13 and 15(d)

8. Notes Payable (Details Narrative)

v2.4.1.9
8. Notes Payable (Details Narrative) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Interest expense $ 984us-gaap_InterestExpense  
Bank of North Dakota New Venture [Member]    
Interest expense 0us-gaap_InterestExpense
/ us-gaap_DebtInstrumentAxis
= MEEC_BankOfNorthDakotaNewVentureMember
2,750us-gaap_InterestExpense
/ us-gaap_DebtInstrumentAxis
= MEEC_BankOfNorthDakotaNewVentureMember
Bank of North Dakota Development [Member]    
Interest expense 0us-gaap_InterestExpense
/ us-gaap_DebtInstrumentAxis
= MEEC_BankOfNorthDakotaDevelopmentMember
2,750us-gaap_InterestExpense
/ us-gaap_DebtInstrumentAxis
= MEEC_BankOfNorthDakotaDevelopmentMember
Tucker Ellis LLP [Member]    
Interest expense $ 9,375us-gaap_InterestExpense
/ us-gaap_DebtInstrumentAxis
= MEEC_TuckerEllisLlpMember
$ 7,583us-gaap_InterestExpense
/ us-gaap_DebtInstrumentAxis
= MEEC_TuckerEllisLlpMember