Clearfield, Inc. Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

Cover
- Document And Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Note 4 - Investments - Available-for-sale Investments (Details)

v3.26.1

Note 4 - Investments - Available-for-sale Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Sep. 30, 2025
Fair value	$ 137,669	$ 144,306
Short-term US Treasury Securities [Member]
Amortized cost	81,381	84,192
Unrealized gains	66	119
Unrealized losses	(28)	(70)
Fair value	81,419	84,241
Short-term Certificates of Deposit [Member]
Amortized cost	248	248
Unrealized gains	0	0
Unrealized losses	(2)	(5)
Fair value	246	243
Short-term Investment [Member]
Amortized cost	81,629	84,440
Unrealized gains	66	119
Unrealized losses	(30)	(75)
Fair value	81,665	84,484
US Treasury Securities [Member]
Amortized cost		59,794
Unrealized gains		62
Unrealized losses		(34)
Fair value		59,822
Long-term Investment [Member]
Amortized cost	56,224	59,794
Unrealized gains	0	62
Unrealized losses	(220)	(34)
Fair value	56,004	$ 59,822
Long-term US Treasury Securities [Member]
Amortized cost	56,224
Unrealized gains	0
Unrealized losses	(220)
Fair value	$ 56,004

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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