Note 6 - Inventories

6 Months Ended

Jun. 30, 2019

Notes to Financial Statements

Inventory Disclosure [Text Block]

6. Inventories

As of

June 30, 2019

and

December 31, 2018,

inventories consisted of the following:

	June 30,		December 31,
	2019		2018
Raw materials	$	4,754,000	$	4,732,000
Work in process		1,818,000		825,000
Finished goods		4,297,000		4,321,000
	$	10,869,000	$	9,878,000