Note 5 - Inventories

12 Months Ended

Mar. 31, 2017

Notes to Financial Statements

Inventory Disclosure [Text Block]

NOTE

5.

INVENTORIES

     Inventories are shown in the following table:
 

	March 31
	2017		2016
Raw materials	$	786,775	$	810,987
Work in process		1,968,990		1,653,800
Finished goods		602,533		740,446
Total inventories	$	3,358,298	$	3,205,233