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Note 13 - Stock-based Compensation Plan (Details) - Stock Option Activity
In Thousands, except Per Share data, unless otherwise specified
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12 Months Ended |
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2014
Canada, Dollars
CAD
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Dec. 31, 2013
Canada, Dollars
CAD
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Dec. 31, 2012
Canada, Dollars
CAD
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Dec. 31, 2011
Canada, Dollars
CAD
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Dec. 31, 2014
United States of America, Dollars
USD ($)
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Dec. 31, 2013
United States of America, Dollars
USD ($)
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| Note 13 - Stock-based Compensation Plan (Details) - Stock Option Activity [Line Items] |
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| Options outstanding |
1,378 |
1,362 |
241 |
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241 |
191 |
1,378 |
1,362 |
| Weighted average exercise price - options outstanding (in Dollars per share) |
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23.92 |
30.16 |
$ 6.65 |
$ 7.10 |
| Weighted average contractual term |
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3 years 6 months |
3 years 73 days |
3 years 219 days |
4 years 6 months |
| Options granted |
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71 |
102 |
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87 |
1,114 |
| Weighted average exercise price - options granted (in Dollars per share) |
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13.00 |
16.12 |
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$ 2.57 |
$ 4.41 |
| Options granted |
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71 |
102 |
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87 |
1,114 |
| Weighted average exercise price - options granted (in Dollars per share) |
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13.00 |
16.12 |
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$ 2.57 |
$ 4.41 |
| Options expired |
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(5) |
(14) |
(29) |
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| Weighted average exercise price - options expired (in Dollars per share) |
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27.16 |
41.02 |
37.44 |
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| Options forfeited |
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(12) |
(50) |
(23) |
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(54) |
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| Weighted average exercise price - options forfeited (in Dollars per share) |
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29.89 |
27.83 |
25.48 |
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$ 4.41 |
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| Options forfeited |
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(12) |
(50) |
(23) |
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(54) |
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| Options forfeited (in Dollars per share) |
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29.89 |
27.83 |
25.48 |
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$ 4.41 |
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| Options outstanding |
1,378 |
1,362 |
241 |
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|
241 |
191 |
1,378 |
1,362 |
| Weighted average exercise price - options outstanding (in Dollars per share) |
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23.92 |
30.16 |
$ 6.65 |
$ 7.10 |
| Weighted average contractual term |
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3 years 6 months |
3 years 73 days |
3 years 219 days |
4 years 6 months |
| Vested or expected to vest at December 31, 2014 |
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1,326 |
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| Vested or expected to vest at December 31, 2014 (in Dollars per share) |
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$ 6.26 |
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| Vested or expected to vest at December 31, 2014 |
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3 years 219 days |
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| Exercisable at December 31, 2014 |
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635 |
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| Exercisable at December 31, 2014 (in Dollars per share) |
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$ 7.48 |
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| Exercisable at December 31, 2014 |
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3 years 6 months |
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