Note 3 - Inventory

6 Months Ended

Jun. 30, 2018

Notes to Financial Statements

Inventory Disclosure [Text Block]

3. Inventory

Inventory consists of the following at

June 30, 2018

and

December 

31,

2017:

	June 30, 2018		December 31, 2017
Raw materials	$	766,709	$	582,816
Work in progress		556,054		453,890
Finished goods		799,118		810,040
Total	$	2,121,881	$	1,846,746