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Major Tenants (Details) - Major Tenants (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Revenue, Major Customer [Line Items]    
Major Tenants $ 656,607us-gaap_Revenues $ 535,317us-gaap_Revenues
Aggregate rental income of major tenants as a percentage of total rental income 92.00%us-gaap_ConcentrationRiskPercentage1 67.00%us-gaap_ConcentrationRiskPercentage1
Best Buy Stores LP    
Revenue, Major Customer [Line Items]    
Major Tenants 148,887us-gaap_Revenues
/ us-gaap_MajorCustomersAxis
= aei22_BestBuyStoresLPMember
144,325us-gaap_Revenues
/ us-gaap_MajorCustomersAxis
= aei22_BestBuyStoresLPMember
Apple American Group    
Revenue, Major Customer [Line Items]    
Major Tenants 143,978us-gaap_Revenues
/ us-gaap_MajorCustomersAxis
= aei22_AppleAmericanGroupMember
195,127us-gaap_Revenues
/ us-gaap_MajorCustomersAxis
= aei22_AppleAmericanGroupMember
Tractor Supply Company    
Revenue, Major Customer [Line Items]    
Major Tenants 108,697us-gaap_Revenues
/ us-gaap_MajorCustomersAxis
= aei22_TractorSupplyCompanyMember
108,697us-gaap_Revenues
/ us-gaap_MajorCustomersAxis
= aei22_TractorSupplyCompanyMember
St. Vincent Health System    
Revenue, Major Customer [Line Items]    
Major Tenants 94,846us-gaap_Revenues
/ us-gaap_MajorCustomersAxis
= aei22_StVincentHealthSystemMember
  
Advance Stores Company    
Revenue, Major Customer [Line Items]    
Major Tenants 87,168us-gaap_Revenues
/ us-gaap_MajorCustomersAxis
= aei22_AdvanceStoresCompanyMember
87,168us-gaap_Revenues
/ us-gaap_MajorCustomersAxis
= aei22_AdvanceStoresCompanyMember
Staples    
Revenue, Major Customer [Line Items]    
Major Tenants $ 73,031us-gaap_Revenues
/ us-gaap_MajorCustomersAxis
= aei22_StaplesMember