Note 10 - Stockholders' Equity (Details) - Stock-based Compensation Expense (USD $)	12 Months Ended		3 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2014 Immune Ltd Plan [Member]	Dec. 31, 2013 Immune Ltd Plan [Member]	Dec. 31, 2013 Immune Ltd Plan [Member] Minimum [Member]	Dec. 31, 2013 Immune Ltd Plan [Member] Maximum [Member]	Dec. 31, 2013 Minimum [Member]	Dec. 31, 2012 Minimum [Member]	Dec. 31, 2013 Maximum [Member]	Dec. 31, 2012 Maximum [Member]
Note 10 - Stockholders' Equity (Details) - Stock-based Compensation Expense [Line Items]
Options (in Shares)		3,775,534	2,495,951
Options Exercise Prices		$ 0.32						$ 0.03		$ 2.00
Granted (in Shares)	790,000	3,890,534
Granted Exercise Prices	$ 1.15	$ 0.33		$ 0.37	$ 0.03	$ 2.00	$ 0.61	$ 0.03	$ 1.80	$ 2.00
Forfeited (in Shares)	(528,958)	(115,000)
Forfeited Exercise Prices	$ 0.33	$ 0.57					$ 0.03	$ 0.44	$ 0.61	$ 0.61
Transferred to Immune 2013 Plan (in Shares)			4,036,576	(4,036,576)
Transferred to Immune 2013 Plan	$ 1.15	$ 0.33		$ 0.37	$ 0.03	$ 2.00	$ 0.61	$ 0.03	$ 1.80	$ 2.00