For the years ended December 31, 2023, 2022 and 2021

Balance at

Charged to

Net

Balance

Beginning

Costs and

(Write-Offs)/

at End of

Description (in thousands)

of Period

Expenses

Recoveries

Period

Year ended December 31, 2023

Credit loss allowance for accounts receivable

$

12

$

—

$

(1)

$

11

Year ended December 31, 2022

Credit loss allowance for accounts receivable

$

12

$

—

$

—

$

12

Year ended December 31, 2021

Credit loss allowance for accounts receivable

$

16

$

—

$

(4)

$

12

Deferred tax asset valuation allowance

$

1,818

$

—

$

(1,818)

$

—