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3. Summary of Significant Accounting Policies (Details)	12 Months Ended
3. Summary of Significant Accounting Policies (Details)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Total possible dilution	2,477,922	4,240,412	3,685,672
Warrant [Member]
Total possible dilution	726,917	2,489,407	1,934,667
Convertible preferred stock
Total possible dilution	1,751,005	1,751,005	1,751,005

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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