Note 3 - Property and Equipment (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2017

Dec. 31, 2016

Notes Tables

Property, Plant and Equipment [Table Text Block]

	March 31, 2017			December 31, 2016
Laboratory equipment	$	530,306		$	525,956
Leasehold improvements		115,605			115,605
Other furniture, fixtures & equipment		28,685			28,685
Total property and equipment		674,596			670,246
Accumulated depreciation and amortization		(622,316	)		(615,418	)
Property and equipment, net	$	52,280		$	54,828

	2016			2015
Laboratory equipment	$	525,956		$	525,956
Leasehold improvements		115,605			115,605
Other furniture, fixtures & equipment		28,685			28,685
Total property and equipment		670,246			670,246
Accumulated depreciation and amortization		(615,418	)		(586,638	)
Property and equipment, net	$	54,828		$	83,608