Note 11 - Stock Option Plans (Details) - Stock Option (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2010	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2011
Note 11 - Stock Option Plans (Details) - Stock Option [Line Items]
Options outstanding - 2005 Plan	0	3,775,534	0	0
Options Granted	0	790,000	3,890,534	0
Options Granted Weighted Average Exercise Price (in Dollars per share)	$ 0	$ 1.15	$ 0.33	$ 0
Options outstanding - 2005 and 2013 Plans	0		3,775,534	0
Issued (Assumed Warrants With Merger) [Member] | Combined Equity Incentive Plans [Member]
Note 11 - Stock Option Plans (Details) - Stock Option [Line Items]
Options Granted		2,495,951
Options Granted Weighted Average Exercise Price (in Dollars per share)		$ 0.37
Options Granted Weighted Average Remaining Contractual Term		8 years 313 days
Options Granted Aggregate Intrinsic Value (in Dollars)		$ 4,331
Combined Equity Incentive Plans [Member]
Note 11 - Stock Option Plans (Details) - Stock Option [Line Items]
Options outstanding - 2005 Plan		8 years 288 days
Options Granted		0
Options Granted Weighted Average Exercise Price (in Dollars per share)		$ 0
Options outstanding - 2005 and 2013 Plans		2,552,871
Options outstanding - 2005 and 2013 Plans (in Dollars per share)		$ 3.96
Options outstanding - 2005 and 2013 Plans		8 years 288 days
Options outstanding - 2005 and 2013 Plans (in Dollars)		4,331
Vested or expected to vest at September 30, 2013 - 2005 and 2013 Plans		2,474,082
Vested or expected to vest at September 30, 2013 - 2005 and 2013 Plans (in Dollars per share)		$ 4.29
Vested or expected to vest at September 30, 2013 - 2005 and 2013 Plans		8 years 288 days
Vested or expected to vest at September 30, 2013 - 2005 and 2013 Plans (in Dollars)		4,234
Options exercisable at September 30, 2013 - 2005 and 2013 Plans		2,277,256
Options exercisable at September 30, 2013 - 2005 and 2013 Plans (in Dollars per share)		$ 4.52
Options exercisable at September 30, 2013 - 2005 and 2013 Plans		8 years 284 days
Options exercisable at September 30, 2013 - 2005 and 2013 Plans (in Dollars)		3,892
Exercised		0
Exercised (in Dollars per share)		$ 0
Combined Equity Incentive Plans [Member] | 2005 Equity Incentive Plan [Member]
Note 11 - Stock Option Plans (Details) - Stock Option [Line Items]
Options outstanding - 2005 Plan		56,920
Options outstanding - 2005 Plan (in Dollars per share)		$ 161.24
Options outstanding - 2005 Plan		6 years 164 days
Options outstanding - 2005 Plan (in Dollars)		$ 0
Options outstanding - 2005 and 2013 Plans		6 years 164 days