Note 14 - Commitments (Tables)

12 Months Ended

Dec. 31, 2015

Notes Tables

Contractual Obligation, Fiscal Year Maturity Schedule [Table Text Block]

	Contractual obligations
	Operating leases for lab and office space		Principal payments on credit facility and exit fee
2016	$	266,100	$	900,000
2017		185,100		1,785,000
Total	$	451,200	$	2,685,000