Note 6 - Long-term Debt and Capital Leases - Long-term Debt and Capital Lease Obligations (Details) - USD ($) |
Nov. 29, 2016 |
May 31, 2016 |
May 14, 2012 |
|---|---|---|---|
| Unamortized debt issuance costs | $ (42,000) | $ (74,000) | |
| Mortgage loan obligations | 14,762,000 | 15,745,000 | |
| Unamortized premium - mortgage loan obligations | 19,000 | 75,000 | |
| Capital lease obligations | 196,000 | 211,000 | |
| Total long-term debt and capital leases | 223,238,000 | 223,737,000 | |
| Less current maturities | 13,629,000 | 9,934,000 | |
| Long-term debt and capital leases, less current maturities | 209,609,000 | 213,803,000 | |
| Senior Notes [Member] | |||
| Senior unsecured notes | 212,546,000 | 212,546,000 | |
| Unamortized discount | (1,577,000) | (1,771,000) | $ (3,700,000) |
| Unamortized debt issuance costs | (2,666,000) | (2,995,000) | |
| Senior unsecured notes less unamortized discount and debt issuance costs | $ 208,303,000 | $ 207,780,000 |