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Investments - Available-for-Sale

12 Months Ended

Dec. 31, 2022

Investments, Debt and Equity Securities [Abstract]

Investments available-for-sale consisted of the following as of December 31, 2022 and 2021 (tables in thousands):


	December 31, 2022
	Amortized Cost		Unrealized Gain		Unrealized Loss		Accrued Interest Income		Fair Value
Available-for-Sale Securities
Bonds	$	11,315	$	75	$	—	$	—	$	11,390


	December 31, 2021
	Amortized Cost		Unrealized Gain		Unrealized Loss		Accrued Interest Income		Fair Value
Available-for-Sale Securities
Bonds	$	9,143	$	1	$	—	$	14	$	9,158

The fair value of investments available-for-sale are determined using quoted market prices from daily exchange-traded markets based on the closing price as of the balance sheet date and are classified as Level 1, as described in Note 3, Fair Value Measurement to our consolidated financial statements.

As of December 31, 2022 and 2021, the amortized cost and estimated fair value of our available-for-sale securities were due in one year or less.