| Schedule of Debt [Table Text Block] |
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Current
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Long-term
|
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|
2012
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|
2011
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2012
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|
2011
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March
2010 Notes - principal
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|
$
|
-
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|
|
$
|
4,071,000
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|
|
$
|
-
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|
|
$
|
-
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|
|
2011
Unit Offering Notes - principal
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|
|
-
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|
|
|
-
|
|
|
|
-
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|
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|
1,625,000
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|
April
2011 Note - principal
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|
|
-
|
|
|
|
-
|
|
|
|
2,000,000
|
|
|
|
2,000,000
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|
|
Total
convertible notes payable - principal
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|
|
-
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|
|
|
4,071,000
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|
|
|
2,000,000
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|
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3,625,000
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March
2010 Notes - unamortized discount
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|
-
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|
(117,405
|
)
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|
-
|
|
|
|
-
|
|
|
2011
Unit Offering Notes - unamortized
discount
|
|
|
-
|
|
|
|
-
|
|
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|
-
|
|
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(316,610
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)
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|
April
2011 Note - unamortized discount
|
|
|
-
|
|
|
|
-
|
|
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|
-
|
|
|
|
-
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|
Total
unamortized discount
|
|
|
-
|
|
|
|
(117,405
|
)
|
|
|
-
|
|
|
|
(316,610
|
)
|
|
March
2010 Notes - net
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|
|
-
|
|
|
|
3,953,595
|
|
|
|
-
|
|
|
|
-
|
|
|
2011
Unit Offering Notes - net
|
|
|
-
|
|
|
|
-
|
|
|
|
-
|
|
|
|
1,308,390
|
|
|
April
2011 Note - net
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|
|
-
|
|
|
|
-
|
|
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|
2,000,000
|
|
|
|
2,000,000
|
|
|
Total
convertible notes payable - net
|
|
$
|
-
|
|
|
$
|
3,953,595
|
|
|
$
|
2,000,000
|
|
|
$
|
3,308,390
|
|
|