v3.25.1

Financial Instruments - Cash, Cash Equivalents, and Marketable Securities by Investment Category (Details) - USD ($)	Mar. 31, 2025	Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash	$ 4,675,000	$ 3,020,000
Amortized Cost	168,958,000	175,942,000
Unrealized Gains	1,652,000	2,219,000
Unrealized Losses	0	(6,000)
Total fair value	170,610,000	178,155,000
Cash and Cash Equivalents	90,078,000	97,132,000
Current Marketable Securities	110,940,000	130,682,000
Noncurrent Marketable Securities	59,670,000	47,473,000
Allowance for credit loss	0	0
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost		156,040,000
Unrealized Gains		1,688,000
Unrealized Losses		(6,000)
Total fair value		157,722,000
Cash and Cash Equivalents		94,112,000
Current Marketable Securities		110,249,000
Noncurrent Marketable Securities		47,473,000
Fair Value, Inputs, Level 1 \| U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost	168,958,000	156,040,000
Unrealized Gains	1,652,000	1,688,000
Unrealized Losses	0	(6,000)
Total fair value	170,610,000	157,722,000
Current Marketable Securities	110,940,000	110,249,000
Noncurrent Marketable Securities	59,670,000	47,473,000
Fair Value, Inputs, Level 1 \| Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents	$ 85,403,000	94,112,000
Fair Value, Inputs, Level 2 \| Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost		19,902,000
Unrealized Gains		531,000
Total fair value		20,433,000
Current Marketable Securities		$ 20,433,000

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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Amount, before tax, of unrealized loss 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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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount excluding accrued interest, of allowance for credit loss 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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Amortized cost excluding accrued interest, after allowance for credit loss, of 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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Amount excluding accrued interest, of 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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Oklo Inc. 10-Q