Note 7 - Derivative Instruments (Details) (USD $)	3 Months Ended	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2014
Note 7 - Derivative Instruments (Details) [Line Items]
Derivative Instrument Outstanding Option Contracts	$ 1,000,000	$ 1,000,000
Derivative Asset	8,000	8,000
Derivative Liability	1,000	1,000
Accrued Expenses And Other Accounts Payable Derivative Instrument	7,000	7,000
Hedging Transaction Expenses Research And Development	0	2,000
Hedging Transaction Expenses Sales And Marketing	0	0
Hedging Transaction Expenses General And Administrative Expenses	$ 0	$ 0
Minimum [Member]
Note 7 - Derivative Instruments (Details) [Line Items]
Derivative Instrument Hedging Period		1 month
Maximum [Member]
Note 7 - Derivative Instruments (Details) [Line Items]
Derivative Instrument Hedging Period	12 months