Summary of Business and Significant Accounting Policies (Tables)

12 Months Ended

Jan. 31, 2023

Accounting Policies [Abstract]

Schedule of inventory, net

The following table presents an updated breakdown of the Company’s net inventory (in thousands) as of January 31, 2023 and 2022:

	January 31,
	2023		2022
Finished goods	$	25,740	$	16,731
Work in Process	25,303		14,732
Raw materials	16,363		15,910
Inventories	$	67,406	$	47,373

Depreciation and amortization computed on the straight-line method for financial reporting purposes based upon estimated useful lives

Property, plant, and equipment are stated at cost, less accumulated depreciation and amortization. Depreciation and amortization are computed on the straight-line method for financial reporting purposes based upon the following estimated useful lives:

Land improvements	5 to 25 years
Buildings and building improvements	5 to 40 years
Machinery and equipment	3 to 10 years
Leasehold improvements	shorter of lease or useful life

Asset retirement obligations related to leased manufacturing facilities

	January 31,
	2023		2022
Balance at beginning of period	$	198,000	$	192,000
Decrease in obligation	—		—
Accretion expense	7,000		6,000
Balance at end of period	$	205,000	$	198,000

Computation of basic and diluted loss per share

	January 31,
	2023		2022
	(In thousands, except per share)
Numerator
Net income (loss)	$	16,547	$	(15,136)
Denominator
Weighted-average shares — basic	16,142		15,954
Dilutive effect of common stock equivalents from equity incentive plans	50		—
Weighted-average shares	16,192		15,954
Net income (loss) per common share
Basic	$	1.03	$	(0.95)
Diluted	$	1.02	$	(0.95)

Schedule of accumulated other comprehensive loss

The following table summarizes the changes in accumulated balances of other comprehensive loss (in thousands) for the years ended January 31, 2023 and 2022:

	January 31,
	2023		2022
Balance as of beginning of year	$	(6,029)	$	(13,585)
Other comprehensive income before reclassifications	3,162		5,782
Amounts reclassified from accumulated comprehensive loss	507		1,774
Net current period other comprehensive income	3,669		7,556
Balance as of end of year	$	(2,360)	$	(6,029)