Note 13 - Shareholders Equity (Details) - Options Outstanding and Exercisable (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Note 13 - Shareholders Equity (Details) - Options Outstanding and Exercisable [Line Items]
Number of Options Outstanding (in Shares)	2,861,893
Options Outstanding, Weighted Average Remaining Contactual Life	7 years 73 days
Options Outstanding, Weighted Average Exercise Price	$ 1.53
Number of Options Exercisable (in Shares)	1,914,697
Options Exercisable, Weighted Average Exercise Price	$ 2.08
$0.23 - $0.23 [Member]
Note 13 - Shareholders Equity (Details) - Options Outstanding and Exercisable [Line Items]
Range of Exercise Prices Lower Limit	$ 0.23
Range of Exercise Prices Upper Limit	$ 0.23
Number of Options Outstanding (in Shares)	855,000
Options Outstanding, Weighted Average Remaining Contactual Life	9 years 73 days
Options Outstanding, Weighted Average Exercise Price	$ 0.23
Number of Options Exercisable (in Shares)	398,332
Options Exercisable, Weighted Average Exercise Price	$ 0.23
$0.26 to $0.76 [Member]
Note 13 - Shareholders Equity (Details) - Options Outstanding and Exercisable [Line Items]
Range of Exercise Prices Lower Limit	$ 0.26
Range of Exercise Prices Upper Limit	$ 0.76
Number of Options Outstanding (in Shares)	772,394
Options Outstanding, Weighted Average Remaining Contactual Life	8 years 6 months
Options Outstanding, Weighted Average Exercise Price	$ 0.52
Number of Options Exercisable (in Shares)	350,932
Options Exercisable, Weighted Average Exercise Price	$ 0.54
$1.00 to $2.33 [Member]
Note 13 - Shareholders Equity (Details) - Options Outstanding and Exercisable [Line Items]
Range of Exercise Prices Lower Limit	$ 1.00
Range of Exercise Prices Upper Limit	$ 2.33
Number of Options Outstanding (in Shares)	882,499
Options Outstanding, Weighted Average Remaining Contactual Life	5 years 328 days
Options Outstanding, Weighted Average Exercise Price	$ 1.37
Number of Options Exercisable (in Shares)	813,433
Options Exercisable, Weighted Average Exercise Price	$ 1.39
$4.91 to $6.36 [Member]
Note 13 - Shareholders Equity (Details) - Options Outstanding and Exercisable [Line Items]
Range of Exercise Prices Lower Limit	$ 4.91
Range of Exercise Prices Upper Limit	$ 6.36
Number of Options Outstanding (in Shares)	160,000
Options Outstanding, Weighted Average Remaining Contactual Life	3 years 6 months
Options Outstanding, Weighted Average Exercise Price	$ 6.03
Number of Options Exercisable (in Shares)	160,000
Options Exercisable, Weighted Average Exercise Price	$ 6.03
$7.00 to $10.64 [Member]
Note 13 - Shareholders Equity (Details) - Options Outstanding and Exercisable [Line Items]
Range of Exercise Prices Lower Limit	$ 7.00
Range of Exercise Prices Upper Limit	$ 10.64
Number of Options Outstanding (in Shares)	192,000
Options Outstanding, Weighted Average Remaining Contactual Life	1 year 328 days
Options Outstanding, Weighted Average Exercise Price	$ 8.38
Number of Options Exercisable (in Shares)	192,000
Options Exercisable, Weighted Average Exercise Price	$ 8.38