Note 4 - Debt (Details) (USD $)	1 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013
Note 4 - Debt (Details) [Line Items]
Debt Instrument, Description of Variable Rate Basis		prime
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)	10,534,245	10,534,245
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)	2.70	2.70
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Share)	2.70	2.70
Interest Only Payments [Member] | Hercules Technology II, L.P. [Member]
Note 4 - Debt (Details) [Line Items]
Debt Instrument, Frequency of Periodic Payment	12
Panacela Loan [Member]
Note 4 - Debt (Details) [Line Items]
Debt Instrument Assignment Percentage	69.20%
Hercules Technology II, L.P. [Member] | Component 1 [Member]
Note 4 - Debt (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate		10.45%
Hercules Technology II, L.P. [Member] | Component 2 [Member]
Note 4 - Debt (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate	4.25%
Hercules Technology II, L.P. [Member] | Principle And Interest Payments [Member]
Note 4 - Debt (Details) [Line Items]
Debt Instrument, Frequency of Periodic Payment	27
Hercules Technology II, L.P. [Member] | Option In Additional Borrowings [Member]
Note 4 - Debt (Details) [Line Items]
Debt Instrument, Face Amount	$ 4,000,000	$ 4,000,000
Hercules Technology II, L.P. [Member] | Warrant [Member]
Note 4 - Debt (Details) [Line Items]
Debt Instrument, Unamortized Discount	117,999	117,999
Hercules Technology II, L.P. [Member] | Facility Fee [Member]
Note 4 - Debt (Details) [Line Items]
Debt Instrument, Unamortized Discount	100,000	100,000
Hercules Technology II, L.P. [Member] | Payment [Member]
Note 4 - Debt (Details) [Line Items]
Debt Instrument, Unamortized Discount	550,000	550,000
Hercules Technology II, L.P. [Member]
Note 4 - Debt (Details) [Line Items]
Debt Instrument, Face Amount	6,000,000	6,000,000
Proceeds from Notes Payable	5,900,000
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum		10.45%
Warrant Term	5 years
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)	156,250	156,250
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)	1.60	1.60
Debt Issuance Cost	102,000
Debt Instrument, Interest Rate, Effective Percentage	16.60%	16.60%
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Share)	1.60	1.60
Hercules Technology II, L.P. [Member] | Minimum [Member]
Note 4 - Debt (Details) [Line Items]
Debt Instrument Penalty Rate	0.01
Hercules Technology II, L.P. [Member] | Maximum [Member]
Note 4 - Debt (Details) [Line Items]
Debt Instrument Penalty Rate	0.03
Equity Private Placement	1,000,000	1,000,000
Panacela Loan [Member]
Note 4 - Debt (Details) [Line Items]
Debt Instrument, Face Amount	1,530,000	1,530,000
Panacela Loan [Member]
Note 4 - Debt (Details) [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)	1.694	1.694
Debt Instrument, Interest Rate, Stated Percentage	16.30%	16.30%
Debt Instrument, Convertible, Conversion Price (in Dollars per share)	$ 1,057	$ 1,057
Debt Instrument, Convertible, Beneficial Conversion Feature	$ 0.75
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Share)	1.694	1.694
Minimum [Member]
Note 4 - Debt (Details) [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)	1.60	1.60
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Share)	1.60	1.60
Maximum [Member]
Note 4 - Debt (Details) [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)	5.00	5.00
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Share)	5.00	5.00