Note 6 - Inventories, Net (Tables)

6 Months Ended

Jun. 30, 2018

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	June 30, 201 8		December 31, 2017
Raw materials	$	2,249,764	$	2,632,415
Work in process		2,957,923		3,386,078
Finished goods		14,555,629		13,347,620
Allowance for excess quantities		(469,654)		(500,181	)
Total inventories	$	19,293,662	$	18,865,932