9. Stockholders' Equity (Details) (USD $)	9 Months Ended
Sep. 30, 2012
Stockholders Equity Details
Number of Options Outstanding, Beginning	393,865
Number of Options Granted
Number of Options Exercised	(135,000)
Number of Options Forfeited
Number of Options Outstanding, Ending	258,865
Number of Options Exercisable	199,148
Weighted Average Exercise Price Outstanding, Beginning	$ 2.32
Weighted Average Exercise Price Granted
Weighted Average Exercise Price Exercised	$ 2.13
Weighted Average Exercise Price Forfeited
Weighted Average Exercise Price Outstanding, Ending	$ 2.43
Weighted Average Exercise Price Exercisable	$ 2.41
Weighted Average Remaining Contractual Life (in years) Outstanding Beginning	2 years 3 months 10 days
Weighted Average Remaining Contractual Life (in years) Outstanding Ending	2 years 1 month 6 days
Weighted Average Remaining Contractual Life (in years) Exercisable	2 years 7 days
Aggregate Intrinsic Value Outstanding, Beginning	$ 498,913
Aggregate Intrinsic Value Granted
Aggregate Intrinsic Value Exercised	319,925
Aggregate Intrinsic Value Forfeited/canceled
Aggregate Intrinsic Value Outstanding, Ending	689,510
Aggregate Intrinsic Value Exercisable	$ 533,043

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