Acquisitions - Additional Information (Detail) (USD $)	12 Months Ended
	Apr. 01, 2011	Jul. 08, 2010
Business Acquisition [Line Items]
Shares issued in connection with acquisition of business, net of issuance costs	$ 4,630,000
Payments related to acquisition of businesses, net of cash acquired	13,456,000
Stonewood acquisition [Member]
Business Acquisition [Line Items]
Purchase price of outstanding shares		18,800,000
Shares issued in connection with acquisition of business, net of issuance costs	4,600,000
Shares issued in connection with acquisition of business, net of issuance costs, shares	144,962
Cash consideration as part of purchase price to acquire		14,200,000
Cash acquired	700,000
Payments related to acquisition of businesses, net of cash acquired	13,500,000
Total merger-related transaction costs incurred by the Company	900,000
Adjustment to the preliminary purchase price allocation	$ 500,000