Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 334	$ 345
Prepaid expenses and other current assets	280	153
Investments available for sale		44
Digital currencies	19	10
Total current assets	633	552
Non–current assets
Property and equipment, at cost, net	503	602
Intangible assets, net	426	468
Investments, at cost		287
Total assets	1,562	1,908
Current liabilities
Accounts payable	329	66
Accrued expenses	196	124
Convertible notes payable, net of debt discount and debt issuance cost	411
Other payables	6	1
Total current liabilities	942	191
Non–current liabilities
Notes payable	500	2,300
Total liabilities	1,442	2,491
Equity / (deficit)
Common stock, $0.001 par value; 75,000,000 shares authorized; 34,797,855 and 28,722,855 shares issued and outstanding at March 31, 2017 and December 31, 2016, respectively	35	29
Additional paid–in capital	334,465	327,943
Accumulated other comprehensive loss		(66)
Accumulated deficit	(334,358)	(328,467)
Total equity / (deficit) attributable to MGT stockholders	142	(561)
Non–controlling interests	(22)	(22)
Total equity / (deficit)	120	(583)
Total equity / (deficit), liabilities, redeemable convertible preferred stock and non–controlling interest	1,562	1,908
Series A Convertible Preferred Stock [Member]
Redeemable convertible preferred stock – Temporary equity
Preferred stock, Series A convertible preferred, $0.001 par value, 1,500,000 shares authorized at September 30, 2016 and December 31, 2016; No shares outstanding at March 31, 2017 and December 31, 2016.
Undesignated Preferred Stock [Member]
Equity / (deficit)
Undesignated preferred stock, $0.001 par value, 8,583,840 shares authorized at March 31, 2017 and December 31, 2016. No shares issued and outstanding at March 31, 2017 and December 31, 2016