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Product Warranty (Tables)
 3 Months Ended
Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Product Warranty Liability [Table Text Block]
The activity in warranty reserves for the quarter and three months ended March 31, 2019 and 2018 are summarized in the following table:
 
Quarter Ended
 
March 31,
 
2019
 
2018
Beginning balance
$
14

 
$
25

Accrued to discontinued operations
—

 
5

Payments made
(1
)
 
(6
)
Total warranty reserves
13

 
24

Current portion of warranty reserves
(3
)
 
(9
)
Long-term portion of warranty reserves
$
10

 
$
15