Note 6 - Additional Cash Flow Disclosure - Net Change in Non-cash Operating Working Capital (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Statement Line Items [Line Items] | |||
| Prepaid expenses and other assets | $ 97 | $ 318 | $ (153) |
| Accounts payable and accrued liabilities | 447 | (444) | 316 |
| Balance, end of year | $ 544 | $ (126) | $ 163 |
| X | ||||||||||
- Definition Adjustments for decrease (increase) in prepaid expenses and other assets to reconcile profit (loss) to net cash flow from (used in) operating activities. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Adjustments for decrease (increase) in trade and other receivables to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Trade and other receivables; Profit (loss)] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The increase (decrease) in working capital. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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