Income Taxes (Details 1) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Deferred tax assets:
Net U.S. operating loss carry forward	$ 1,764,385	$ 2,694,569
Net PRC and Hong Kong operating loss carry forward	1,252,015	754,143
Foreign tax credit	206,306
Allowance for doubtful accounts and reserve for obsolete inventories		454,663
Total gross deferred tax assets	3,222,706	3,903,375
Less: valuation allowance	(3,222,706)	(3,516,994)
Net deferred tax assets		$ 386,381