| NOTE G - REDEEMABLE PREFERRED STOCK | 6 Months Ended | 
|---|---|
| Jun. 30, 2011 | |
| Equity Method Investments Disclosure [Text Block] | 
      NOTE G - REDEEMABLE
      PREFERRED STOCK
     
      Series
      A
     
      The
      Company has designated 215 shares of preferred stock as
      Series A Preferred Stock (“Series A”). Each share
      of Series A shall be convertible, at the option of the holder
      thereof, at any time, into shares of our Common Stock at an
      initial conversion price of $0.363 per share, subject to
      adjustments for anti-dilution provisions.  In
      the event of a change of control (as defined in the purchase
      agreement with respect to the Series A), or at the
      holder’s option, on November 19, 2014 and for a period
      of 180 days thereafter, provided that at least fifty percent
      (50%) of the shares of Series A issued on the Series A
      Original Issue Date remain outstanding as of November 19,
      2014, and the holders of at least a majority of the then
      outstanding shares of Series A provide written notice
      requesting redemption of all shares of Series A, we are
      required to redeem the Series A for the purchase price plus
      any accrued but unpaid dividends. The Series A accrues
      dividends at an annual rate of 8% of the original purchase
      price, and shall be payable only when, as, and if declared by
      our Board of Directors.
     
      On
      November 16, 2009, the Company sold 215 shares of Series A
      with attached warrants to purchase an aggregate of 1,628,800
      shares of the Company’s common stock at $0.33 per
      share.  The Series A shares were sold at a price
      per share of $5,000 and each Series A share is
      convertible into approximately 13,774 shares of common stock
      at a conversion price of $0.363 per share. The Company
      received $1,075,000 from the sale of the Series A
      shares.  Since the Series A may ultimately be
      redeemable at the option of the holder, the carrying value of
      the preferred stock, net of discount and accumulated
      dividends, has been classified as Commitments and
      Contingencies on the balance sheet at June 30, 2011 and
      December 31, 2010.
     
      In
      accordance with ASC 470 Topic “Debt”, a
      portion of the proceeds were allocated to the warrants based
      on their relative fair value, which totaled $287,106
      using the Black Scholes option pricing model. Further, the
      Company attributed a beneficial conversion feature
      of $70,922 to the Series A preferred shares based
      upon the difference between the effective conversion price of
      those shares and the closing price of the Company’s
      common stock on the date of issuance. The assumptions used in
      the Black-Scholes model are as
      follows:  (1) dividend yield of 0%;
      (2) expected volatility of 123%, (3) weighted
      average risk-free interest rate of 2.2%,
      (4) expected life of 5 years, and (5) estimated
      fair value of Telkonet common stock of $0.24 per share. The
      expected term of the warrants represents the estimated period
      of time until exercise and is based on historical experience
      of similar awards and giving consideration to the contractual
      terms. The amounts attributable to the warrants and
      beneficial conversion feature, aggregating $358,028, have
      been recorded as a discount and deducted from the face value
      of the preferred stock. Since the preferred stock is
      classified as temporary equity, the discount will be
      amortized over the period from issuance to November 19, 2014
      (the initial redemption date) as a charge to additional
      paid-in capital (since there is a deficit in retained
      earnings).
     
      The
      charge to additional paid in capital for amortization of
      Series A discount and costs for the period ended June 30,
      2011 was $35,802.  
     
      For
      the six months ended June 30, 2011 we have accrued dividends
      in the amount of $42,424 and cumulative accrued dividends of
      $138,356. The accrued dividends have been charged to
      additional paid-in capital (since there is a deficit in
      retained earnings) and the net unpaid accrued dividends have
      been added to the carrying value of the Series A
      shares.
     
      Series
      B
     
      The
      Company has designated 567 shares of preferred stock as
      Series B Preferred Stock (“Series B”). Each share
      of Series B shall be convertible, at the option of the holder
      thereof, at any time, into shares of our Common Stock at an
      initial conversion price of $0.13 per share, subject to
      adjustments for anti-dilution provisions.  In
      the event of a change of control (as defined in the purchase
      agreement with respect to the Series B), or at the
      holder’s option, on November 19, 2014 and for a period
      of 180 days thereafter, provided that at least fifty percent
      (50%) of the shares of Series B issued on the Series B
      Original Issue Date remain outstanding as of November 19,
      2014, and the holders of at least a majority of the then
      outstanding shares of Series B provide written notice
      requesting redemption of all shares of Series B, we are
      required to redeem the Series B for the purchase price plus
      any accrued but unpaid dividends. The Series B accrues
      dividends at an annual rate of 8% of the original purchase
      price, and shall be payable only when, as, and if declared by
      our Board of Directors.
     
      On
      August 4, 2010, the Company sold 267 shares of Series B with
      attached warrants to purchase an aggregate of 10,269,219
      shares of the Company’s common stock at $0.13 per
      share.  The Series B shares were sold at a price
      per share of $5,000 and each Series B share is
      convertible into approximately 38,461 shares of common stock
      at a conversion price of $0.13 per share. The Company
      received $1,335,000 from the sale of the Series B
      shares.  Since the Series B shares may ultimately
      be redeemable at the option of the holder, the carrying value
      of the Series B shares, net of discount and accumulated
      dividends, has been classified as temporary equity on the
      balance sheet at June 30, 2011 and December 31, 2010.
     
      In
      accordance with ASC 470 Topic “Debt”, a
      portion of the proceeds were allocated to the warrants based
      on their relative fair value, which totaled $394,350
      using the Black Scholes option pricing model. Further, the
      Company attributed a beneficial conversion feature
      of $394,350 to the Series B shares based upon the
      difference between the effective conversion price of those
      shares and the closing price of the Company’s common
      stock on the date of issuance. The assumptions used in the
      Black-Scholes model are as
      follows:  (1) dividend yield of 0%;
      (2) expected volatility of 123%, (3) weighted
      average risk-free interest rate of 1.76%,
      (4) expected life of 5 years, and (5) estimated
      fair value of Telkonet common stock of $0.109 per share. The
      expected term of the warrants represents the estimated period
      of time until exercise and is based on historical experience
      of similar awards and giving consideration to the contractual
      terms. The amounts attributable to the warrants and
      beneficial conversion feature, aggregating $788,700, have
      been recorded as a discount and deducted from the face value
      of the Series B shares. Since the Series B is classified as
      temporary equity, the discount will be amortized over the
      period from issuance to November 19, 2014 (the initial
      redemption date) as a charge to additional paid-in capital
      (since there is a deficit in retained earnings).
     
      On
      April 8, 2011, the Company sold 271 additional shares of
      Series B with attached warrants to purchase an aggregate of
      10,423,067 shares of the Company’s common stock at
      $0.13 per share.  The Series B shares were sold at
      a price per share of $5,000 and each Series B share is
      convertible into approximately 38,461 shares of common stock
      at a conversion price of $0.13 per share. The Company
      received $1,355,000 from the sale of the Series B
      shares.  Since the Series B shares may ultimately
      be redeemable at the option of the holder, the carrying value
      of the Series B shares, net of discount and accumulated
      dividends, has been classified as temporary equity on the
      balance sheet at June 30, 2011.
     
      In
      accordance with ASC 470 Topic “Debt”, a
      portion of the proceeds were allocated to the warrants based
      on their relative fair value, which totaled $427,895
      using the Black Scholes option pricing model. Further, the
      Company attributed a beneficial conversion feature
      of $427,895 to the Series B shares based upon the
      difference between the effective conversion price of those
      shares and the closing price of the Company’s common
      stock on the date of issuance. The assumptions used in the
      Black-Scholes model are as
      follows:  (1) dividend yield of 0%;
      (2) expected volatility of 129%, (3) weighted
      average risk-free interest rate of 0.26%,
      (4) expected life of 5 years, and (5) estimated
      fair value of Telkonet common stock of $0.12 per share. The
      expected term of the warrants represents the estimated period
      of time until exercise and is based on historical experience
      of similar awards and giving consideration to the contractual
      terms. The amounts attributable to the warrants and
      beneficial conversion feature, aggregating $855,790, have
      been recorded as a discount and deducted from the face value
      of the Series B shares. Since the Series B is classified as
      temporary equity, the discount will be amortized over the
      period from issuance to November 19, 2014 (the initial
      redemption date) as a charge to additional paid-in capital
      (since there is a deficit in retained earnings).
     
      The
      charge to additional paid in capital for amortization of
      Series B discount and costs for the period ended June 30,
      2011 was $157,995.
     
      For
      the six months ended June 30, 2011, we have accrued dividends
      for Series B in the amount of $77,646 and cumulative accrued
      dividends of $120,683. The accrued dividends have been
      charged to additional paid-in capital (since there is a
      deficit in retained earnings) and the net unpaid accrued
      dividends been added to the carrying value of the preferred
      stock.
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