Discontinued Operations (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Accounts receivable, net	$ 33,646	$ 78,407
Inventories, net of reserve for obsolete inventories		31,019
Advances to suppliers	144,583	200,275
Equipment held for sale		1,147,035
Prepaid expenses and other	229,281	302,250
Total current assets	407,510	1,758,986
Total assets	407,510	1,758,986
Current liabilities:
Accounts payable	387,887	458,433
Accrued expenses and other liabilities	1,746	45,280
Accrues from customers		54,948
Total current liabilities	389,633	558,661
Total liabilities	$ 389,633	$ 558,661