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Acquisition Activity (Tables)
12 Months Ended
Dec. 31, 2018
Pacific Instruments, Inc.  
Business Acquisition [Line Items]  
Schedule of Assets Acquired and Liabilities Assumed
The following table summarizes the fair values assigned to the assets and liabilities of Pacific as of April 6, 2016 (in thousands):
Working capital (a)
 
$
921

Property and equipment
 
26

Long-term deferred income tax liability
 
(1,903
)
Intangible assets:
 
 
Patents and acquired technology
 
1,300

Non-competition agreements
 
40

Customer relationships
 
3,500

Trade names
 
700

Total intangible assets
 
5,540

Fair value of acquired identifiable assets and liabilities
 
4,584

Purchase price
 
$
10,626

Goodwill
 
$
6,042

(a)
Working capital accounts include accounts receivable, inventory, prepaid expenses and other current assets, trade accounts payable, accrued payroll, income taxes payable, and other accrued expenses.
Schedule of Acquisition Costs
The Company recorded acquisition costs associated with this transaction in its consolidated statements of operation as follows (in thousands):
 
Year ended
December 31,
2016
Accounting and legal fees
$
369

Appraisal fees
41

Other
21

 
$
431

Stress-Tek, Inc.  
Business Acquisition [Line Items]  
Schedule of Assets Acquired and Liabilities Assumed
The following table summarizes the fair values assigned to the assets and liabilities as of the December 30, 2015 acquisition date (in thousands):
Working capital (a)
$
2,564

Property and equipment
6,338

Intangible assets:
 
Patents and acquired technology
1,600

Non-competition agreements
60

Customer relationships
2,500

Trade names
700

Total intangible assets
4,860

Fair value of acquired identifiable assets
13,762

Purchase price
$
20,073

Goodwill
$
6,311

(a)
Working capital accounts include cash, accounts receivable, inventory, prepaid expenses and other current assets, trade accounts payable, accrued payroll, and other accrued expenses.
Schedule of Acquisition Costs
The Company recorded acquisition costs associated with this transaction in its consolidated statements of operations as follows (in thousands):

 
Year ended December 31,
 
 
2016
 
Accounting and legal fees
$
51

 
Appraisal fees
12

 
Other

 
 
$
63