Note 5 - Property and Equipment

12 Months Ended

Dec. 31, 2017

Notes to Financial Statements

Property, Plant and Equipment Disclosure [Text Block]

5.

 Property and Equipment

Property and equipment consists of the following:

	December 31,
	2017			2016
Laboratory equipment	$	182,357		$	182,357
Furniture and office equipment		155,113			137,290
Leasehold improvements		430,000			—
Total property and equipment		767,470			319,647
Less: accumulated depreciation		(306,818	)		(239,892	)
Property and equipment, net	$	460,652		$	79,755

Depreciation expense was approximately

$68,000

and

$25,000

for the years ended

December 31, 2017

and

2016,

respectively.