Shareholders' Equity and Capital Stock - o/s RSUs (Details) - USD ($) $ in Thousands |
6 Months Ended | |
|---|---|---|
Jun. 30, 2017 |
Dec. 31, 2016 |
|
| RSUs | ||
| Number of unvested units | 1,071,340 | 1,273,990 |
| Remaining life (years) | 1 year 11 days | |
| Aggregate Intrinsic Value | $ 675 | |
| March 13, 2015 [Member] | ||
| RSUs | ||
| Number of unvested units | 161,384 | |
| Remaining life (years) | 1 month 17 days | |
| Aggregate Intrinsic Value | $ 102 | |
| August 17, 2015 [Member] | ||
| RSUs | ||
| Number of unvested units | 248,226 | |
| Remaining life (years) | 5 months 12 days | |
| Aggregate Intrinsic Value | $ 156 | |
| December 11, 2015 [Member] | ||
| RSUs | ||
| Number of unvested units | 661,730 | |
| Remaining life (years) | 1 year 5 months 16 days | |
| Aggregate Intrinsic Value | $ 417 |
| X | ||||||||||
- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|