SEGMENT INFORMATION (Details) - USD ($) $ in Thousands		3 Months Ended
		Jun. 24, 2017	Jun. 25, 2016
Revenue:
Revenue		$ 36,279	$ 33,147
Gross Profit:
Gross Profit		8,691	8,246
Operating Expenses:
Operating Expenses		7,280	6,808
Operating Income:
Operating Income		1,411	1,438
Unallocated Amounts:
Interest and Other Expense, net		272	168
Provision for Income Taxes		283	364
Unallocated Amounts		555
Net Income		856	906
Service Segment [Member]
Revenue:
Revenue		18,482	17,175
Gross Profit:
Gross Profit		4,636	4,729
Operating Expenses:
Operating Expenses	[1]	3,751	3,685
Operating Income:
Operating Income		885	1,044
Distribution [Member]
Revenue:
Revenue		17,797	15,972
Gross Profit:
Gross Profit		4,055	3,517
Operating Expenses:
Operating Expenses	[1]	3,529	3,123
Operating Income:
Operating Income		$ 526	394
Segment Reconciling Items [Member]
Revenue:
Revenue			33,147
Gross Profit:
Gross Profit			8,246
Operating Expenses:
Operating Expenses			6,808
Operating Income:
Operating Income			1,438
Unallocated Amounts:
Interest and Other Expense, net			168
Provision for Income Taxes			364
Unallocated Amounts			532
Net Income			$ 906

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