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Receivables
12 Months Ended
Dec. 31, 2021
Receivables [Abstract]  
Receivables

Note 6. RECEIVABLES

Changes in the allowance for doubtful accounts consisted of the following (in thousands):

 

 

 

Year Ended December 31,

 

 

 

2021

 

 

2020

 

 

2019

 

Balance at beginning of year

 

$

429

 

 

$

557

 

 

$

607

 

Increase in allowance charged to expense

 

 

253

 

 

 

1,210

 

 

 

362

 

Accounts charged against the allowance, net of recoveries

 

 

(224

)

 

 

(1,338

)

 

 

(412

)

Balance at end of year

 

$

458

 

 

$

429

 

 

$

557

 

 

Notes receivable from lessee dealers totaled $0.5 million and $1.3 million at December 31, 2021 and 2020, respectively, and are included in other current assets and other noncurrent assets on the consolidated balance sheets.