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Note 6. Summary of stock options issued (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011
Notes to Financial Statements |  |
Number of Options Outstanding, Beginning | 127,500 | 100,000
Number of Options Granted | 196,000 | 30,000
Number of Options Exercised | (25,154) |
Number of Options expired or cancelled | (70,000) |
Number of Options Forfeited | (7,750) | (2,500)
Number of Options Outstanding, Ending | 220,596 | 127,500
Range of Exercise Price Options Outstanding, Beginning | 1.70 - $2.32 | 2.10 - $2.32
Range of Exercise Price Options Granted | 0.01 - $3.33 | 1.70 - $2.30
Range of Exercise Price Options Exercised | 1.70 - $2.10 | -
Range of Exercise Price Options expired or cancelled | 0.01 | -
Range of Exercise Price Options Forfeited | 1.70 - $3.33 | 1.70 - $2.10
Range of Exercise Price Options Outstanding, Ending | 0.01 - $3.33 | 1.70 - $2.32
Weighted Average Exercise Price Outstanding, Beginning | $ 2.07 | $ 2.13
Weighted Average Exercise Price Granted | $ 1.37 | $ 1.82
Weighted Average Exercise Price Exercised | $ 2.04 |
Weighted Average Exercise Price expired or Canceled | $ 0.01 |
Weighted Average Exercise Price Forfeited | $ 2.45 | $ 1.78
Weighted Average Exercise Price Outstanding, Ending | $ 2.09 | $ 2.07
Aggregate Intrinsic Value Outstanding, Beginning | $ 24,590 | $ 16,700
Aggregate Intrinsic Value Granted | $ 370,750 | $ 13,240
Aggregate Intrinsic Value Exercised | 35,661 |
Aggregate Intrinsic Value Options expired or cancelled | 226,800 |
Aggregate Intrinsic Value Forfeited | $ 6,438 | $ 1,175
Aggregate Intrinsic Value Outstanding, Ending | $ 257,835 | $ 24,590

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