CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 1,380	$ 1,455
Accounts receivable	5	5
Prepaid expenses and other current assets	155	172
Note receivable	251	0
Total current assets	1,791	1,632
Non-current assets:
Restricted cash	39	138
Property and equipment, net	33	43
Intangible assets, net	2,267	2,417
Goodwill	6,444	6,444
Other non-current assets	0	2
Total assets	10,574	10,676
Current liabilities:
Accounts payable	404	245
Accrued expenses	312	180
Player deposit liability	773	952
Other payables	3	2
Total current liabilities	1,492	1,379
Total liabilities	1,492	1,379
Commitments and contingencies:
Stockholders' equity:
Common Stock, $0.001 par value; 75,000,000 shares authorized; 12,853,381 and 10,731,160 shares issued and outstanding at March 31, 2015, and December 31, 2014, respectively	13	11
Additional paid-in capital	309,452	308,288
Accumulated other comprehensive loss	(281)	(281)
Accumulated deficit	(300,457)	(299,163)
Total stockholders' equity attributable to MGT Capital Investments, Inc.	8,727	8,855
Non-controlling interests	355	442
Total stockholders’ equity	9,082	9,297
Total liabilities, redeemable convertible preferred stock and stockholders' equity	10,574	10,676
Series A Convertible Preferred Stock [Member]
Redeemable convertible preferred stock - Temporary equity:
Preferred stock, series A convertible preferred, $0.001 par value; 1,416,160 and 1,416,160 shares authorized at March 31, 2015, and December 31, 2014, respectively; 10,143 and 9,993 shares issued and outstanding at March 31, 2015, and December 31, 2014, respectively	0	0
Undesignated Preferred Stock [Member]
Stockholders' equity:
Undesignated preferred stock, $0.001 par value; 8,583,840 and 8,583,840 shares authorized at March 31, 2015, and December 31, 2014, respectively. No shares issued and outstanding	$ 0	$ 0