Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Other Intangible Assets - Other Intangible Assets (Details)

v3.22.0.1
Note 10 - Other Intangible Assets - Other Intangible Assets (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Dec. 26, 2021
Dec. 27, 2020
Dec. 26, 2021
Dec. 27, 2020
Mar. 28, 2021
Finite-lived intangible assets, gross amount $ 11,640   $ 11,640   $ 11,640
Finite-lived intangible assets, accumulated amortization 8,866   8,866   8,477
Amortization expense 130 $ 193 389 $ 596  
Cost of Sales [Member]          
Amortization expense 2 2 5 5  
Selling, General and Administrative Expenses [Member]          
Amortization expense 128 191 384 591  
Trademarks and Trade Names [Member]          
Finite-lived intangible assets, gross amount 2,567   2,567   2,567
Finite-lived intangible assets, accumulated amortization 1,850   1,850   1,722
Amortization expense 43 61 128 183  
Developed Technology [Member]          
Finite-lived intangible assets, gross amount 0   0   0
Finite-lived intangible assets, accumulated amortization 0   0   0
Amortization expense 0 28 0 83  
Noncompete Agreements [Member]          
Finite-lived intangible assets, gross amount 98   98   98
Finite-lived intangible assets, accumulated amortization 98   98   93
Amortization expense 2 19 5 59  
Patents [Member]          
Finite-lived intangible assets, gross amount 1,601   1,601   1,601
Finite-lived intangible assets, accumulated amortization 990   990   950
Amortization expense 13 13 40 48  
Customer Relationships [Member]          
Finite-lived intangible assets, gross amount 7,374   7,374   7,374
Finite-lived intangible assets, accumulated amortization 5,928   5,928   $ 5,712
Amortization expense $ 72 $ 72 $ 216 $ 223