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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)-(4)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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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Number of share options (or share units) exercised during the current period.

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-Topic 505
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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30
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