Note L - Stockholders' Equity (Details) (USD $)	6 Months Ended	156 Months Ended
	Sep. 28, 2014	Sep. 28, 2014	Sep. 11, 2014	Mar. 30, 2014	Jun. 05, 2013
Stockholders' Equity Note [Abstract]
Treasury Stock, Shares, Acquired	37,661	4,647,687
Treasury Stock, Value, Acquired, Cost Method (in Dollars)	$ 1,916,000	$ 56,800,000
Common Stock, Par or Stated Value Per Share (in Dollars per share)	$ 0.01	$ 0.01	$ 0.01	$ 0.01
Stock Repurchase Program, Authorized Amount (in Dollars)			$ 6,000,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	251,272	251,272
Minimum Percentage of Common Stock Acquired by a Person or Group which Triggers Exercise of New Rights					15.00%
New Right Purchase Price (in Dollars per share)					$ 100.00
Common Stock, Capital Shares Reserved for Future Issuance	7,701,450	7,701,450			10,188,600