|
Note 10 - Promissory Notes (Details) - Actual Interest Expense and Amortization of Debt Discount (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Actual Interest Expense and Amortization of Debt Discount [Abstract] | |||
| Stated interest | $ 500 | $ 840 | $ 1,325 |
| Amortization of debt discount | 188 | 380 | 509 |
| Amortization of promissory notes issuance costs | 38 | 108 | 155 |
| $ 726 | $ 1,328 | $ 1,989 | |