Charged to 

Beginning

Cost and 

Ending 

Description

Balance

Expense

Deductions

Balance

Year ended December 31, 2015

Allowances for accounts receivable

$

1,819

$

(181)

$

(30)

$

1,668

Reserve for inventory obsolescence

$

10

$

13

$

 7

$

16

Year ended December 31, 2016

Allowances for accounts receivable

$

1,668

$

644

$

19

$

2,293

Reserve for inventory obsolescence

$

16

$

 3

$

 4

$

15

Year ended December 31, 2017

Allowances for accounts receivable

$

2,293

$

(178)

$

13

$

2,102

Reserve for inventory obsolescence

$

15

$

 —

$

 3

$

12