Business Segments (Details) (USD $)	3 Months Ended
	Jun. 30, 2013 Category Segment	Jul. 01, 2012
Business Segments [Abstract]
Number of reportable segments	1
Number of product categories	4
Segment Reporting Information [Line Items]
Revenues	$ 144,109,000	$ 192,418,000
Gross profit	35,437,900	35,493,200
Direct expenses	17,615,000	17,257,000
Segment net profit contribution	17,823,000	18,236,000
Corporate support expenses	10,914,000	11,363,000
Income before provision for income taxes	6,909,200	6,873,400
Public Carriers, Contractors and Program Managers
Segment Reporting Information [Line Items]
Revenues	37,383,000	20,018,000
Gross profit	7,894,000	4,458,000
Private and Government System Operators
Segment Reporting Information [Line Items]
Revenues	27,893,000	29,600,000
Gross profit	7,801,000	8,153,000
Commercial Dealers and Resellers
Segment Reporting Information [Line Items]
Revenues	36,044,000	31,608,000
Gross profit	10,247,000	8,798,000
Retailer, Independent Dealer Agents and Carriers [Member]
Segment Reporting Information [Line Items]
Revenues	42,789,000	41,190,000
Gross profit	9,496,000	8,686,000
Revenue, excluding Major 3PL relationship [Member]
Segment Reporting Information [Line Items]
Revenues	144,109,000	122,416,000
Gross profit, excluding Major 3PL relationship [Member]
Segment Reporting Information [Line Items]
Gross profit	35,438,000	30,095,000
Major 3PL relationship [Member]
Segment Reporting Information [Line Items]
Revenues	0	70,002,000
Gross profit	$ 0	$ 5,398,000