17. Income Taxes (Details 3)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Effective income tax rate from continuing operations
Expected taxes at statutory rates	35.00%	35.00%
State taxes, net of federal tax benefit	(0.40%)	(0.10%)
Foreign income tax rate differential	(24.10%)	(9.80%)
Amortization and impairment of goodwill	(4.90%)	(8.50%)
Mark to market adjustment	0.30%	4.20%
Deductible inducement payment	1.00%	3.20%
Change in valuation allowance	17.30%	(25.40%)
Debt reorganization and exchangeable notes	1.70%	0.00%
Revaluation of deferred tax balances	(24.50%)	0.00%
Permanent differences and other	0.10%	1.10%
Total	(0.50%)	(0.30%)