|
Note 15 - Income taxes (Details) - Component of Loss Before Provision for Income Taxes (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Component of Loss Before Provision for Income Taxes [Abstract] | |||
| United States | $ (2,147) | $ (1,422) | |
| Canada | (28,565) | (9,227) | |
| $ (30,712) | $ (10,649) | $ (21,194) | |