Description

Balance at
Beginning
of Year

Provisions

Amounts
Written Off

Amounts
Recovered

Effect of
Currency
Translation

Balance at
End of Year

Year ended December 31, 2011

Allowance for doubtful accounts receivable

$

918

$

(133

)

$

(174

)

$

12

$

24

$

647

Allowance for sales returns

90

625

(606

)

—

—

109

Allowance for obsolete inventory

2,397

732

(1,057

)

10

1

2,083

Tax valuation allowance

12,282

(2,390

)

(56

)

—

—

9,836

Year ended December 31, 2010

Allowance for doubtful accounts receivable

$

1,840

$

213

$

(1,148

)

$

—

$

13

$

918

Allowance for sales returns

55

640

(605

)

—

—

90

Allowance for obsolete inventory

2,833

1,196

(1,605

)

—

(27

)

2,397

Tax valuation allowance

18,662

302

(6,706

)

—

24

12,282

Year ended December 31, 2009

Allowance for doubtful accounts receivable

$

1,472

$

219

$

(69

)

$

—

$

218

$

1,840

Allowance for sales returns

55

145

(145

)

—

—

55

Allowance for obsolete inventory

3,286

1,062

(1,524

)

—

9

2,833

Tax valuation allowance

13,986

5,870

(1,234

)

—

—

18,662