Marketable Securities (Tables)

9 Months Ended

Sep. 30, 2022

Investments, Debt and Equity Securities [Abstract]

Schedule for Available-for-Sale Securities

The following is a summary of available-for-sale securities as of September 30, 2022 (in thousands):

	Amortized Cost		Gross Unrealized Gain		Gross Unrealized (Losses)		Estimated Fair Value
Tax-exempt municipal securities	$	18,636	$	1	$	(540)	$	18,097
Corporate debt securities	8,179		—		(241)		7,938
Total	$	26,815	$	1	$	(781)	$	26,035

The following is a summary of available-for-sale securities as of December 31, 2021 (in thousands):

	Amortized Cost		Gross Unrealized Gain		Gross Unrealized (Losses)		Estimated Fair Value
Tax-exempt municipal securities	$	18,546	$	271	$	—	$	18,817
Corporate debt securities	10,898		163		—		11,061
Total	$	29,444	$	434	$	—	$	29,878

Schedule of Maturities of Marketable Securities

The following table summarizes the maturities of the Company’s marketable securities as of December 31, 2021 and September 30, 2022 (in thousands):

	December 31, 2021		September 30, 2022
Due within one year	$	6,501	$	11,387
Due after one year through five years	23,377		14,648
Total	$	29,878	$	26,035

Schedule of Proceeds from the Maturities of Available-for-Sale Securities

The following table summarizes the proceeds from the maturities and sales of available-for-sale securities for the three and nine months ended September 30, 2021 and 2022 (in thousands):

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2022		2021		2022
Maturities of marketable securities	$	1,900	$	500	$	7,495	$	2,600
Sales of marketable securities	1,805		—		1,805		—
Total	$	3,705	$	500	$	9,300	$	2,600