XML 34 R24.htm IDEA: XBRL DOCUMENT v3.21.2
Business Segment Information - Schedule of Business Segment Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Net sales:        
Total net sales $ 34,556 $ 28,426 $ 106,733 $ 84,537
Operating income (loss):        
Total operating income 5,131 2,082 16,706 9,471
Interest income 289 360 945 1,337
Income before income taxes 5,420 2,442 17,651 10,808
Operating Segments | Security Products        
Net sales:        
Total net sales 25,829 21,209 79,301 65,251
Operating income (loss):        
Total operating income 5,529 2,797 16,864 11,871
Operating Segments | Marine Components        
Net sales:        
Total net sales 8,727 7,217 27,432 19,286
Operating income (loss):        
Total operating income 1,255 1,129 4,796 3,010
Corporate        
Operating income (loss):        
Total operating income $ (1,653) $ (1,844) $ (4,954) $ (5,410)