Note 7 - Segment and Geographic Data (Details) - Segment and geographic data: (USD $) In Thousands, unless otherwise specified	3 Months Ended										12 Months Ended
	Mar. 30, 2013		Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012		Dec. 24, 2011	Sep. 24, 2011	Jun. 25, 2011	Mar. 30, 2013		Mar. 31, 2012
Revenue:
Net Revenue	$ 31,087		$ 29,324	$ 26,788	$ 25,097	$ 30,772		$ 28,460	$ 25,183	$ 25,605	$ 112,296		$ 110,020
Gross Profit:
Gross Profit	8,489		6,630	6,078	6,207	7,885		6,788	6,153	6,298	27,404		27,124
Operating Expenses:
Operating Expenses											21,458		21,696
Operating Income (Loss):
Depreciation and Amortization											5,946		5,428
Unallocated Amounts:
Unallocated Amounts											2,242		2,126
Net Income	1,816		782	745	361	1,207		1,024	746	325	3,704		3,302
Total Assets:
Total Assets	55,047					44,977					55,047		44,977
Depreciation and Amortization (2):
Depreciation and Amortization											2,702	[1]	2,896	[1]
Capital Expenditures:
Capital Expenditrures	2,657					1,391					2,657		1,391
Distribution [Member]
Revenue:
Net Revenue											71,641		73,614
Gross Profit:
Gross Profit											17,102		18,504
Operating Expenses:
Operating Expenses											12,467	[2]	12,901	[2]
Total Assets:
Total Assets	25,932					25,531					25,932		25,531
Depreciation and Amortization (2):
Depreciation and Amortization											962	[1]	937	[1]
Capital Expenditures:
Capital Expenditrures	193					248					193		248
Service Segment [Member]
Revenue:
Net Revenue											40,655		36,406
Gross Profit:
Gross Profit											10,302		8,620
Operating Expenses:
Operating Expenses											8,991	[1],[2]	8,795	[1],[2]
Operating Income (Loss):
Depreciation and Amortization											1,311	[2]	(175)	[2]
Total Assets:
Total Assets	24,785					16,428					24,785		16,428
Depreciation and Amortization (2):
Depreciation and Amortization											1,740	[1]	1,959	[1]
Capital Expenditures:
Capital Expenditrures	2,464					1,143					2,464		1,143
Total [Member]
Revenue:
Net Revenue											112,296		110,020
Gross Profit:
Gross Profit											27,404		27,124
Product Segment [Member]
Operating Income (Loss):
Depreciation and Amortization											4,635	[2]	5,603	[2]
Unallocated Interest and Other Expense, Net [Member]
Unallocated Amounts:
Unallocated Amounts											228		182
Unallocated Provision for Income Taxes [Member]
Unallocated Amounts:
Unallocated Amounts											2,014		1,944
Segment Reconciling Items [Member]
Total Assets:
Total Assets	4,330					3,018					4,330		3,018
United States [Member]
Long-Lived Assets:
Long-Lived Assets	6,400	[3]				5,081	[3]				6,400	[3]	5,081	[3]
Canada [Member]
Long-Lived Assets:
Long-Lived Assets	485					225					485		225
Total [Member]
Long-Lived Assets:
Long-Lived Assets	6,885					5,306					6,885		5,306
United States [Member]
Revenues to Unaffiliated Customers (3):
Geographic Data											101,850	[4]	99,848	[4]
Canada [Member]
Revenues to Unaffiliated Customers (3):
Geographic Data											7,873	[3],[4]	7,324	[3],[4]
Other International [Member]
Revenues to Unaffiliated Customers (3):
Geographic Data											2,573	[4]	2,848	[4]
Total [Member]
Revenues to Unaffiliated Customers (3):
Geographic Data											$ 112,296	[4]	$ 110,020	[4]

[1] Including amortization of catalog costs.

[2] Operating expense allocations between segments were based on actual amounts, a percentage of revenues, headcount, and management's estimates.

[3] United States includes Puerto Rico.

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