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Goodwill and Other Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill
The change in the carrying amount of goodwill by segment is as follows (in thousands):
 
Total
 
Weighing and Control Systems Segment
 
Foil Technology Products Segment
 
 
 
KELK Acquisition
 
DSI Acquisition
 
Stress-Tek Acquisition
 
Pacific Instruments
Balance at January 1, 2018
$
19,181

 
$
6,828

 
$
—

 
$
6,311

 
$
6,042

Impairment charges
(2,500
)
 
—

 
—

 
—

 
(2,500
)
Foreign currency translation adjustment
(540
)
 
(540
)
 
—

 
—

 
—

Balance at December 31, 2018
16,141

 
6,288

 
—

 
6,311

 
3,542

Goodwill acquired
18,606

 
 
 
18,606

 
—

 
—

Foreign currency translation adjustment
271

 
271

 
—

 
—

 
—

Balance at December 31, 2019
$
35,018

 
$
6,559

 
$
18,606

 
$
6,311

 
$
3,542
Schedule of Finite-Lived Intangible Assets
Intangible assets were as follows (in thousands):
 
December 31,
 
2019
 
2018
Intangible assets subject to amortization
 
 
 
(Definite-lived):
 
 
 
Patents and acquired technology
$
19,504

 
$
9,067

Customer relationships
25,690

 
20,941

Trade names
1,690

 
1,674

Non-competition agreements
11,745

 
11,820

 
58,629

 
43,502

Accumulated amortization:
 
 
 
Patents and acquired technology
(4,718
)
 
(4,103
)
Customer relationships
(11,727
)
 
(10,399
)
Trade names
(1,690
)
 
(1,674
)
Non-competition agreements
(11,717
)
 
(11,748
)
 
(29,852
)
 
(27,924
)
Net intangible assets subject to amortization
$
28,777

 
$
15,578

 
 
 
 
Intangible assets not subject to amortization
 
 
 
(Indefinite-lived):
 
 
 
Trade names
5,421

 
2,078


$
34,198

 
$
17,656
Schedule of Expected Amortization Expense
Estimated annual amortization expense for each of the next five years is as follows (in thousands):
2020
$
2,465

2021
2,416

2022
2,415

2023
2,311

2024
2,279