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Inventories
 9 Months Ended
Sep. 30, 2020
Inventories [Abstract]  
Inventories 10. Inventories

Inventories consisted of the following at:

Raw materials

Work-in process

Finished products

and components

Total

September 30, 2020

Domestic

$

11,946

$

1,182

$

2,301

$

15,429

Foreign

3,777

1,069

188

5,034

Total

$

15,723

$

2,251

$

2,489

$

20,463

December 31, 2019

Domestic

$

10,379

$

736

$

2,375

$

13,490

Foreign

2,482

215

190

2,887

Total

$

12,861

$

951

$

2,565

$

16,377