Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 18	$ 216
Prepaid expenses and other current assets	100	125
Intangible digital assets	12	18
Total current assets	130	359
Non-current assets
Property and equipment, at cost, net	3,740	3,536
Right of use asset, operating lease, net of accumulated amortization	69	78
Other assets	157	321
Total assets	4,096	4,294
Current liabilities
Accounts payable	1,249	795
Accrued expenses and other payables	123	26
Note payable, net of discount	124	52
Management agreement termination liability	58	116
Operating lease liability	18	19
Total current liabilities	1,572	1,008
Non-current liabilities
Operating lease liability	51	59
Total liabilities	1,623	1,067
Commitments and Contingencies (Note 9)
Stockholders' Equity
Preferred stock, value
Common stock, $0.001 par value; 2,500,000,000 shares authorized; 446,448,446 and 413,701,289 shares issued and outstanding at March 31, 2020 and December 31, 2019, respectively.	447	414
Additional paid-in capital	417,852	417,315
Accumulated deficit	(415,826)	(414,502)
Total stockholders' equity	2,473	3,227
Total Liabilities and Stockholders' Equity	4,096	4,294
Series B Preferred Stock [Member]
Stockholders' Equity
Preferred stock, value
Series C Convertible Preferred Stock [Member]
Stockholders' Equity
Preferred stock, value