Note 4 - Segment Information - Segment and Geographic Data (Details) - USD ($) $ in Thousands		3 Months Ended						9 Months Ended
		Dec. 23, 2023	Sep. 23, 2023	Jun. 24, 2023	Dec. 24, 2022	Sep. 24, 2022	Jun. 25, 2022	Dec. 23, 2023	Dec. 24, 2022
Revenue	[1]	$ 65,166			$ 57,402			$ 188,568	$ 168,502
Gross Profit		20,936			16,400			59,771	49,205
Operating Expenses		16,642			13,237			49,194	38,812
Operating Income		4,294			3,163			10,577	10,393
Interest and Other Expense, net		23			1,039			1,742	1,732
Provision for Income Taxes		923			523			2,078	1,631
Total		946			1,562			3,820	3,363
Net Income		3,348	$ 460	$ 2,949	1,601	$ 2,357	$ 3,072	6,757	7,030
UNITED STATES
Revenue	[1],[2]	59,090			51,209			170,466	151,241
CANADA
Revenue	[1]	4,083			4,221			12,226	12,075
Other International [Member]
Revenue	[1]	1,993			1,972			5,876	5,186
Service Segment [Member] | Operating Segments [Member]
Revenue		41,509			35,977			122,793	105,120
Gross Profit		13,494			10,793			40,549	33,115
Operating Expenses	[3]	10,528			8,957			33,649	26,240
Operating Income		2,966			1,836			6,900	6,875
Distribution Segment [Member] | Operating Segments [Member]
Revenue		23,657			21,425			65,775	63,382
Gross Profit		7,442			5,607			19,222	16,090
Operating Expenses	[3]	6,114			4,280			15,545	12,572
Operating Income		$ 1,328			$ 1,327			$ 3,677	$ 3,518

[1] Revenues are attributed to the countries based on the destination of a product shipment or the location where service is rendered.

[2] United States includes Puerto Rico.

[3] Operating expense allocations between segments are based on actual amounts, a percentage of revenues, headcount, and management’s estimates.