Note 8 - Business Combination (Details) (USD $)	6 Months Ended		3 Months Ended	6 Months Ended	36 Months Ended			6 Months Ended
	Jun. 30, 2013	Jun. 30, 2013 Contingent Consideration Adjustment Charge [Member]	Jun. 30, 2013 Transaction Costs [Member]	Jun. 30, 2013 Transaction Costs [Member]	Dec. 31, 2015 Earn-Out Shares [Member]	Jun. 30, 2013 Earn-Out Shares [Member]	Jun. 30, 2013 Fair Value, Inputs, Level 3 [Member]	Jun. 30, 2013 Cash [Member]	Dec. 31, 2015 Maximum [Member] Earn-Out Shares [Member]
Note 8 - Business Combination (Details) [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares)	12,199,431				18,299,147
Business Combination Percentage of Total Shares Issuable	40.00%								50.00%
Business Combination, Excercise Price of Outstanding Options and RSAs	$ 1.25
Business Combination, Consideration Transferred	24,592,000							500,000
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned	16,600,000					7,500,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability		55,000
Business Combination, Contingent Consideration, Liability							7,555,000
Business Combination, Acquisition Related Costs			$ 300,000	$ 1,000,000