Note 11 - Commitments and Contingencies (Details Textual) - USD ($) |
12 Months Ended | |
|---|---|---|
Apr. 02, 2017 |
Apr. 03, 2016 |
|
| Operating Leases, Rent Expense | $ 1,500,000 | $ 1,500,000 |
| Operating Leases, Future Minimum Payments Due | 4,100,000 | |
| Operating Leases, Future Minimum Payments Due, Next Twelve Months | 1,300,000 | |
| Operating Leases, Future Minimum Payments, Due in Two Years | 1,300,000 | |
| Operating Leases, Future Minimum Payments, Due in Three Years | 1,200,000 | |
| Operating Leases, Future Minimum Payments, Due in Four Years | 342,000 | |
| Royalty Expense | 7,000,000 | $ 9,000,000 |
| Royalty Expense Due | 5,300,000 | |
| Royalty Expense Due in Next Twelve Months | 4,400,000 | |
| Royalty Expense Due in Two Years | 725,000 | |
| Royalty Expense Due in Three Years | $ 178,000 | |
| X | ||||||||||
- Definition Represents royalty expense due. No definition available.
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| X | ||||||||||
- Definition Represents royalty expense due in the next twelve months. No definition available.
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| X | ||||||||||
- Definition Represents royalty expense due in three years. No definition available.
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| X | ||||||||||
- Definition Represents royalty expense due in two years. No definition available.
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| X | ||||||||||
- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. No definition available.
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| X | ||||||||||
- Definition Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of expense related to royalty payments under a contractual arrangement such as payment for mineral and drilling rights and use of technology or intellectual property. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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