Note 10 - Stock-based Compensation - Restricted Share Activity (Details) - Restricted share units [member] |
12 Months Ended | ||
|---|---|---|---|
Jun. 28, 2017 |
Mar. 28, 2017 |
Dec. 31, 2017
USD ($)
|
|
| Statement Line Items [Line Items] | |||
| Outstanding, beginning of year | |||
| Outstanding, beginning of year | |||
| Number of other equity instruments granted in share-based payment arrangement | 150,000 | 150,000 | |
| Granted | $ 1.14 | ||
| Redeemed | (150,000) | (150,000) | |
| Redeemed | $ 1.14 | ||
| Outstanding, end of year | |||
| Outstanding, end of year |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The number of other equity instruments (ie other than share options) granted in a share-based payment arrangement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The number of other equity instruments (ie other than share options) exercised or vested in a share-based payment arrangement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The number of other equity instruments (ie other than share options) outstanding in a share-based payment arrangement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The weighted average exercise price of other equity instruments (ie other than share options) exercised or vested in a share-based payment arrangement. [Refer: Weighted average [member]] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The weighted average exercise price of other equity instruments (ie other than share options) granted in a share-based payment arrangement. [Refer: Weighted average [member]] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The weighted average exercise price of other equity instruments (ie other than share options) outstanding in a share-based payment arrangement. [Refer: Weighted average [member]] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
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