Quarterly report pursuant to Section 13 or 15(d)

Segment Information - Summary of Segment Reporting Information (Details)

v3.22.1
Segment Information - Summary of Segment Reporting Information (Details) - USD ($)
$ in Thousands
 3 Months Ended
Apr. 02, 2022
Apr. 03, 2021
Dec. 31, 2021
Segment Reporting Information      
Sales $ 116,176 $ 105,857  
Segment Measure of Operating Profit (Loss) and Margins      
Total Operating Loss (4,167) (9,512)  
Deductions from Segment Measure of Operating Profit (Loss)      
Interest Expense, Net of Interest Income 1,631 1,758  
Profit (Loss) Before Income Taxes 5,024 (11,804)  
Total Assets 588,471   $ 609,138
Aerospace      
Segment Reporting Information      
Sales 101,394 81,416  
Test Systems      
Segment Reporting Information      
Sales 14,782 24,441  
Operating Segments      
Segment Measure of Operating Profit (Loss) and Margins      
Total Operating Loss $ 1,263 $ (4,374)  
Operating margins, percentage 1.10% (4.10%)  
Operating Segments | Aerospace      
Segment Reporting Information      
Sales $ 101,394 $ 81,430  
Segment Measure of Operating Profit (Loss) and Margins      
Total Operating Loss $ 3,050 $ (5,563)  
Operating margins, percentage 3.00% (6.80%)  
Deductions from Segment Measure of Operating Profit (Loss)      
Total Assets $ 465,611   458,334
Operating Segments | Test Systems      
Segment Reporting Information      
Sales 14,798 $ 24,745  
Segment Measure of Operating Profit (Loss) and Margins      
Total Operating Loss $ (1,787) $ 1,189  
Operating margins, percentage (12.10%) 4.90%  
Deductions from Segment Measure of Operating Profit (Loss)      
Total Assets $ 96,285   105,335
Less Inter-segment Sales | Aerospace      
Segment Reporting Information      
Sales 0 $ (14)  
Less Inter-segment Sales | Test Systems      
Segment Reporting Information      
Sales (16) (304)  
Corporate Expenses and Other      
Deductions from Segment Measure of Operating Profit (Loss)      
Corporate Expenses and Other 5,892 $ 5,672  
Total Assets $ 26,575   $ 45,469