Valuation and Qualifying Accounts

Balance at
Beginning
of Period

Additions
Charged to
Expenses or
Other Accounts

Deductions
Credited to
Expenses or
Other Accounts

Balance at
End of
Period

(in thousands)

Allowance for credit losses

Year Ended December 31, 2022

$

50

$

—

$

—

$

50

Year Ended December 31, 2021

$

50

$

—

$

—

$

50

Year Ended December 31, 2020

$

129

$

—

$

(79

)

$

50

Deferred tax valuation allowance

Year Ended December 31, 2022

$

69,314

$

13,360

$

—

$

82,674

Year Ended December 31, 2021

$

55,951

$

13,363

$

—

$

69,314

Year Ended December 31, 2020

$

45,494

$

10,457

$

—

$

55,951