Unaudited Consolidated Statement of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common	Common Class B	Common Stock	Common Stock Common	Common Stock Common Class B	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income
Beginning Balance at May. 30, 2020	$ 118,660			$ 657			$ 61,749	$ 54,764	$ 1,490
Beginning Balance (in shares) at May. 30, 2020					11,038	2,097
Comprehensive income:
Net income (loss)	(230)							(230)
Foreign currency translation	2,966								2,966
Share-based compensation:
Restricted stock	371						371
Stock options	158						158
Restricted stock issuance				4			(4)
Restricted stock issuance (in shares)					73
Dividends paid to:
Common ($0.180 per share)	(2,000)							(2,000)
Class B ($0.162 per share)	(340)							(340)
Ending Balance at Feb. 27, 2021	119,585			661			62,274	52,194	4,456
Ending Balance (in shares) at Feb. 27, 2021					11,111	2,097
Beginning Balance at Nov. 28, 2020	119,634			661			62,124	52,746	4,103
Beginning Balance (in shares) at Nov. 28, 2020					11,111	2,097
Comprehensive income:
Net income (loss)	228							228
Foreign currency translation	353								353
Share-based compensation:
Restricted stock	112						112
Stock options	38						38
Dividends paid to:
Common ($0.180 per share)	(667)							(667)
Class B ($0.162 per share)	(113)							(113)
Ending Balance at Feb. 27, 2021	119,585			661			62,274	52,194	4,456
Ending Balance (in shares) at Feb. 27, 2021					11,111	2,097
Beginning Balance at May. 29, 2021	121,560			663			62,707	53,297	4,893
Beginning Balance (in shares) at May. 29, 2021		11,160	2,097		11,160	2,097
Comprehensive income:
Net income (loss)	9,644							9,644
Foreign currency translation	(2,353)								(2,353)
Share-based compensation:
Restricted stock	339						339
Stock options	175						175
Options exercised	2,630			16	$ 331		2,614
Restricted stock issuance				4			(4)
Restricted stock issuance (in shares)					73
Class B Converted to common (in shares)					44	(44)
Dividends paid to:
Common ($0.180 per share)	(2,047)							(2,047)
Class B ($0.162 per share)	(337)							(337)
Ending Balance at Feb. 26, 2022	129,611			683			65,831	60,557	2,540
Ending Balance (in shares) at Feb. 26, 2022		11,608	2,053		11,608	2,053
Beginning Balance at Nov. 27, 2021	125,413			672			63,794	58,476	2,471
Beginning Balance (in shares) at Nov. 27, 2021					11,338	2,097
Comprehensive income:
Net income (loss)	2,887							2,887
Foreign currency translation	69								69
Share-based compensation:
Restricted stock	105						105
Stock options	37						37
Options exercised	1,906			11	$ 226		1,895
Class B Converted to common (in shares)					44	(44)
Dividends paid to:
Common ($0.180 per share)	(695)							(695)
Class B ($0.162 per share)	(111)							(111)
Ending Balance at Feb. 26, 2022	$ 129,611			$ 683			$ 65,831	$ 60,557	$ 2,540
Ending Balance (in shares) at Feb. 26, 2022		11,608	2,053		11,608	2,053