Note 9. Long-Term Investment (Detail) (USD $)	3 Months Ended		12 Months Ended
	Jul. 01, 2012	Jan. 01, 2012	Apr. 01, 2012	Mar. 31, 2013	Mar. 27, 2011
Long-term Investments			$ 1,273,000	$ 1,288,000	$ 1,563,000
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures			114,000	15,000
Non Marketable Equity Investment In Fund Contributions	15,000
Non Marketable Equity Investment In Fund Capital Receipts		404,000	(404,000)
Skypoint Fund [Member]
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures				4,800,000
Held In Escrow [Member]
Non Marketable Equity Investment In Fund Capital Receipts		$ 76,000