Property and Equipment, net (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Property and Equipment net
Total property and equipment	$ 790,000	$ 746,000
Less: accumulated depreciation	(460,000)	(368,000)
Property and equipment, net	330,000	378,000
Fintech Village
Property and Equipment net
Property and equipment, net	7,580,000	12,939,000
Furnitures and office equipment
Property and Equipment net
Total property and equipment	315,000	441,000
Vehicle
Property and Equipment net
Total property and equipment	229,000	62,000
Leasehold improvements
Property and Equipment net
Total property and equipment	246,000	243,000
Land
Property and Equipment net
Property and equipment, net	2,750,000	3,043,000
Building
Property and Equipment net
Property and equipment, net	0	309,000
Assets retirement obligations - environmental remediation
Property and Equipment net
Property and equipment, net	4,500,000	6,496,000
Capitalized direct development cost
Property and Equipment net
Property and equipment, net	0	2,713,000
Construction in progress (Fintech Village)
Property and Equipment net
Less: accumulated depreciation	0
Property and equipment, net	$ 7,250,000	$ 12,561,000