Note 4 - Reverse Merger (Details) - Purchase Price Allocation - Assets and Liabilities Assumed (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended	12 Months Ended	39 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Dec. 31, 2013	Sep. 30, 2013	Sep. 30, 2013	Aug. 25, 2013
Purchase Price Allocation - Assets and Liabilities Assumed [Abstract]
Cash and cash equivalents			$ 292
Restricted cash			252
Other current assets			96
Property and equipment			29
In-process research and development	27,500	27,500	27,500	27,500	27,500	27,500
Accounts payable			(3,078)
Accrued liabilities			(1,737)
Loan payable			(4,442)
Deferred tax liability			(10,870)
Gain on bargain purchase	(6,444)	(6,444)	(6,444)	(6,444)	(6,444)
Total acquisition consideration			$ 1,598