Note 8 - Customer and Geographic Information (Details) - Revenue Percentage by Major Customers (Customer Concentration Risk [Member])	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenue, Major Customer [Line Items]
Revenue Percentage by Major Customers			10.00%
Customer A [Member] | Sales Revenue, Net [Member]
Revenue, Major Customer [Line Items]
Revenue Percentage by Major Customers	56.00%	28.00%	50.00%	31.00%
Customer B [Member] | Sales Revenue, Net [Member]
Revenue, Major Customer [Line Items]
Revenue Percentage by Major Customers	13.00%	13.00%	16.00%	17.00%
Customer C [Member] | Sales Revenue, Net [Member]
Revenue, Major Customer [Line Items]
Revenue Percentage by Major Customers	11.00%	35.00%	12.00%	26.00%