Note 9 - Commitments and Contingencies (Details Textual)	1 Months Ended
	May. 31, 2015	Mar. 31, 2015
Davida [Member]
Number of Employees Provided Class Action Notification		658
Loss Contingency, Number of Plaintiffs	91
Josh Christensen Case [Member]
Loss Contingency, Number of Plaintiffs		5
Independent Contractor Cases [Member]
Loss Contingency, New Claims Filed, Number		1
Loss Contingency, Pending Claims, Number		7