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Note 6 - Long-Term Investment (Details) (USD $)
12 Months Ended 3 Months Ended
Mar. 31, 2013
Dec. 29, 2013
Apr. 01, 2012
Dec. 29, 2013
Skypoint Fund [Member]
Jul. 01, 2012
Skypoint Fund [Member]
Note 6 - Long-Term Investment (Details) [Line Items]          
Long-term Investments $ 1,288,000 $ 1,263,000 $ 1,273,000    
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures       4,800,000  
Payments to Acquire Long-term Investments 15,000       15,000
Non-Marketable Equity Investment, Distribution       $ 25,000