Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

24. Derivative Financial Liabilities (Details - Assumptions)

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24. Derivative Financial Liabilities (Details - Assumptions) - Level 2 of fair value hierarchy [Member] - $ / shares
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Disclosure of financial liabilities [line items]      
Average stock price volatility 80.08% 100.60% 141.03%
Bottom of range [Member]      
Disclosure of financial liabilities [line items]      
Conversion price $ 1.30 $ 1.40 $ 1.40
Stock price $ 1.30 $ 1.80 $ 1.25
Risk-free interest rate 0.82% 0.44% 0.09%
Expected term (in years) 4 days 4 days 1 month 2 days
Top of range [Member]      
Disclosure of financial liabilities [line items]      
Conversion price $ 1.80 $ 3.55 $ 3.55
Stock price $ 1.98 $ 3.55 $ 4.00
Risk-free interest rate 1.90% 0.92% 0.71%
Expected term (in years) 1 year 1 year 1 year