3. Summary of Significant Accounting Policies (Details 4) (USD $)
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3 Months Ended | 6 Months Ended | ||
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Jun. 30, 2014
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Jun. 30, 2013
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Jun. 30, 2014
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Jun. 30, 2013
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Total stock-based compensation expense | $ 21,488 | $ 8,977 | $ 40,384 | $ 28,017 |
Research and Development
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Total stock-based compensation expense | 10,301 | 667 | 17,854 | 5,503 |
Selling and Marketing
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Total stock-based compensation expense | 5,914 | 523 | 11,905 | 4,192 |
General and Administrative
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Total stock-based compensation expense | $ 5,273 | $ 7,787 | $ 10,625 | $ 18,322 |