Note 3 - Inventories

12 Months Ended

Mar. 31, 2020

Notes to Financial Statements

Inventory Disclosure [Text Block]

3. INVENTORIES

Inventories consist of the following as of

March 

31,

2020

and

2019:

	20 20		201 9
	(in thousands)
Raw materials	$	397	$	495
Work in process		4,172		4,032
Finished goods		4,945		6,587
Supplies		139		160
Inventories, net	$	9,653	$	11,274

The Company recognizes abnormal production costs, including fixed cost variances from normal production capacity, as an expense in the period incurred. The Company expensed abnormal production costs of

$0,

$250,000

and

$538,000

to cost of sales for the fiscal years ended

March 31, 2020,

2019

and

2018,

respectively. Non-inventoriable fixed costs of

$343,000,

$176,000

and

$271,000

were expensed to cost of sales for the fiscal years ended

March 31, 2020,

2019

and

2018,

respectively.