12. Stockholder's Equity (Details) (Warrant [Member], USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Beginning balance, shares	2,489,407	1,934,667
Warrants issued, shares		629,740
Warrants exercised, shares	(310,625)	(25,000)
Warrants expired, shares	(1,451,865)	(50,000)
Ending balance, shares	726,917	2,489,407
Warrants exercised, Exercise Prices	$ 1.20
Warrants expired, Exercise Prices	$ 4.50
2015	476,917
Thereafter	250,000
Total	726,917
Minimum [Member]
Beginning balance, Exercise Prices	$ 0.25	0.25
Warrants granted, Exercise Prices		1.20
Warrants exercised, Exercise Prices	$ 1.20
Ending balance Exercise Prices	$ 0.25	0.25
Maximum [Member]
Beginning balance, Exercise Prices	$ 4.50	4.50
Warrants granted, Exercise Prices		1.60
Warrants exercised, Exercise Prices	$ 1.60
Ending balance Exercise Prices	$ 4.50	4.50

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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-Publisher FASB

-Name Accounting Standards Codification

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Net number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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