Note 12 - Option Liabilities - Summary of the Changes in Option Liabilities (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Original valuation | $ 511 | ||
| Loss from change in value of option liabilities | 2,613 | ||
| Reclassification to shareholders' equity | (3,124) | ||
| Call Option [Member] | |||
| Balance | 0 | ||
| Balance | 0 | 0 | |
| The 200 Million Share, Call Option [Member] | |||
| Balance | 0 | ||
| Original valuation | 489 | ||
| Loss from change in value of option liabilities | 2,442 | ||
| Reclassification to shareholders' equity | (2,931) | ||
| Balance | 0 | 0 | |
| The 100 Million Share, Call Option [Member] | |||
| Balance | 0 | ||
| Original valuation | 22 | ||
| Loss from change in value of option liabilities | 171 | ||
| Reclassification to shareholders' equity | (193) | ||
| Balance | $ 0 | $ 0 | |