Discontinued Operations (Details) - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Accounts receivable, net	$ 383,118	$ 78,407
Inventories, net of reserve for obsolete inventories	31,768	31,019
Advances to suppliers	141,049	200,275
Equipment held for sale		1,147,035
Prepaid expenses and other	201,211	302,250
Total current assets	757,146	1,758,986
Total assets	757,146	1,758,986
Current liabilities:
Accounts payable	410,067	458,433
Accrued expenses and other liabilities	1,214	45,280
Advances from customers		54,948
Total current liabilities	411,281	558,661
Total liabilities	$ 411,281	$ 558,661