Note 10 - Commitments and Contingencies (Detail)	3 Months Ended
	Mar. 31, 2013 sqft	Mar. 31, 2013 Area Surrenderd After Execution Of Amendment [Member] sqft	Nov. 30, 2014 Right To Surrender Additional Area [Member] sqft
Period Of Lease	65 months
Area of Real Estate Property	29,606	5,394	8,898