Note 5 - Employee Benefit Plans (Details) (USD $)	12 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Note 5 - Employee Benefit Plans (Details) [Line Items]
Defined Contribution Plan Vested Term	3 years
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 500,000	$ 400,000
NQDC Plan [Member]
Note 5 - Employee Benefit Plans (Details) [Line Items]
Defined Contribution Plan, Employer Discretionary Contribution Amount		100,000
Deferred Compensation Arrangement With Individual Service Term		3 years
Deferred Compensation Liability, Current and Noncurrent	600,000	200,000
Other Postretirement Benefit Plan, Defined Benefit [Member]
Note 5 - Employee Benefit Plans (Details) [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase	50.00%
Defined Benefit Plan, Effect of One Percentage Point Increase on Service and Interest Cost Components	1
Defined Benefit Plan, Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation	100,000
Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components	1
Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation	100,000
Less Than [Member] | Other Postretirement Benefit Plan, Defined Benefit [Member]
Note 5 - Employee Benefit Plans (Details) [Line Items]
Pension and Other Postretirement and Postemployment Benefit Plans, Liabilities, Noncurrent	$ 100,000