Note 5 - Property and Equipment

12 Months Ended

Dec. 31, 2019

Notes to Financial Statements

Property, Plant and Equipment Disclosure [Text Block]

Note

5.

Property and Equipment

The major classes of property and equipmentconsist of the following at

December 31:

	2019			2018
Furniture and fixtures	$	35,407		$	35,407
Computers and office equipment		138,897			138,897
Lab equipment		817,149			818,267
		991,453			992,571
Less accumulated depreciation		(950,417	)		(902,260	)
Property and equipment, net	$	41,036		$	90,311

The above includes approximately

$70,000

of equipment located at our research facility in China. Property and equipment are recorded at cost and are depreciated using the straight-line method over the estimated useful lives of the respective assets. Depreciation expense for the years ended

December 31, 2019

and

2018,

was approximately

$49,000

and

$84,000,

respectively.