13. Income Taxes - (Details- Schedule of deferred income taxes) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Non-current deferred tax assets:
Retirement benefits	$ 67,439	$ 71,249
Write down of investment(s)	62,421	65,958
Deferred revenue net	96,090	43,193
Other	23,833	20,890
Net operating loss carryforwards	4,150,813	5,143,029
Less: valuation allowance	(4,150,813)	(5,143,029)
Total non-current deferred tax asset	249,783	201,290
Total deferred tax asset	$ 249,783	$ 201,290