Note 6 - Leases - Lease Cost (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2019 |
Jul. 01, 2018 |
Jun. 30, 2019 |
Jul. 01, 2018 |
|
| Fixed lease costs | $ 780 | $ 1,327 | ||
| Depreciation of leased assets | 360 | 721 | ||
| Obligations under capital leases | 220 | $ 47 | 448 | $ 61 |
| Sublease income | $ 51 | $ 129 | ||
| X | ||||||||||
- Definition Amount of interest expense on finance lease liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of amortization expense attributable to right-of-use asset from finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of sublease income excluding finance and operating lease expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|