Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities
Net loss	$ (17,965)	$ (3,857)
Adjustments to reconcile net loss to net cash used in operating activities:
Amortization of patent portfolio	267
Fair value adjustments for warrant liabilities	2,618	(1,202)
Issuance costs of warrants accounted for at fair value		246
Loss on issuance of warrants		622
Depreciation	24	64
Stock-based compensation	9,971	56
Provision for doubtful accounts		(8)
Changes in assets and liabilities:
Other receivables	2	5
Prepaid expenses and other assets	(14)	236
Deposit	(4)
Accounts payable and accrued expenses	(158)	193
Accrued salaries and benefits	(52)
Deferred rent	(45)	(3)
Net cash used in activities of continuing operations	(5,356)	(3,648)
Net cash provided by (used in) activities of discontinued operations	(86)	(167)
Net cash used in operating activities	(5,270)	(3,815)
Cash flow from investing activities
Cash acquired in acquisition of North South	2,662
Purchase of Rockstar patent portfolio	(2,000)
Purchase of fixed assets		(2)
Net cash provided by (used in) activities of continuing operations	662	(2)
Net cash provided by activities of discontinued operations		4
Net cash used in investing activities	662	2
Cash flow from financing activities
Proceeds from issuance of note payable	500
Issuance of Series E preferred stock for cash, net	500
Issuance of Series F preferred stock for cash, net	1,925
Issuance of common stock in connection with private placement, net	310	3,402
Reverse stock split fractional share payment		(2)
Net cash provided by activities of continuing operations	3,235	3,400
Net cash provided by financing activities	3,235	3,400
Net decrease in cash and cash equivalents	(1,373)	(413)
Cash and cash equivalents, beginning of year	4,498	4,911
Cash and cash equivalents, end of year	3,125	4,498
Acquisition of North South Holdings:
Prepaid expenses	(35)
Patent portfolio	(1,102)
Goodwill	(1,712)
Common and preferred stock issued	5,511
Cash Acquired in acquisition of North South	2,662
Issuance of common and preferred stock for Rockstar patents	61,000
Issuance of Series C Convertible Preferred Stock in connection with exchange of warrants	5,696
Accrued Rockstar patent cost	1,000
Retirement of Series E Convertible Preferred stock	$ 500