Balance at
Beginning
of Period

Expense
(Recovery)

Deductions

Reserve

Amounts

Acquired

through

Business Combinations

Foreign
Currency
Translation
Adjustments

Balance at
End of
Period

Year Ended December 31, 2021

Allowance for doubtful accounts

$

212

$

-

$

-

$

-

$

1

$

213

Warranty reserve

235

249

(156

)

203

-

531

Year Ended December 31, 2020

Allowance for doubtful accounts

$

211

$

-

$

-

$

-

1

$

212

Warranty reserve

334

32

(131

)

-

235