| NOTE N - SUBSEQUENT EVENTS | 6 Months Ended | 
|---|---|
| Jun. 30, 2011 | |
| Property, Plant and Equipment Disclosure [Text Block] | 
      NOTE N -
      SUBSEQUENT EVENTS
     
      On
      July 15, 2011, Telkonet executed a sublease agreement for
      11,626 square feet of its’ former corporate
      headquarters located in Germantown, MD.  The
      sublease term will expire on January 31, 2013.  The
      subtenant received a one month rent abatement and has the
      option to extend the sublease from January 31, 2013 to
      December 31, 2015.
     | 
| X | ||||||||||
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- Definition The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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