Goodwill and Other Identifiable Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	May 28, 2022	Feb. 26, 2022
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	$ 130,102	$ 130,098
Foreign currency translation	149	4
Reallocation among reporting units (1)	0
Goodwill, Ending	130,251	130,102
Architectural Framing Systems
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	93,181	93,099
Foreign currency translation	(38)	82
Reallocation among reporting units (1)	(2,048)
Goodwill, Ending	91,095	93,181
Architectural Services
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	1,120	1,120
Foreign currency translation	(3)	0
Reallocation among reporting units (1)	2,048
Goodwill, Ending	3,165	1,120
Architectural Glass
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	25,244	25,322
Foreign currency translation	190	(78)
Reallocation among reporting units (1)	0
Goodwill, Ending	25,434	25,244
Large-Scale Optical
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	10,557	10,557
Foreign currency translation	0	0
Reallocation among reporting units (1)	0
Goodwill, Ending	$ 10,557	$ 10,557