Note 6 - Inventories

6 Months Ended

Sep. 30, 2017

Notes to Financial Statements

Inventory Disclosure [Text Block]

NOTE

6.

INVENTORIES

     Inventories are shown in the following table:
 

	September 30, 2017		March 31, 2017
Raw materials	$	790,901	$	786,775
Work in process		2,007,545		1,968,990
Finished goods		706,032		602,533
Total inventories	$	3,504,478	$	3,358,298