|
Note 4 - Net Loss per Common Share (Details) - Potentially Dilutive Securities Excluded from Diluted Weighted-average Shares Outstanding
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Equity Option [Member] | |||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Anti-dilutive securities excluded from computation of weighted-average shares outstanding | 1,378 | 1,362 | 241 |
| Warrant [Member] | |||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Anti-dilutive securities excluded from computation of weighted-average shares outstanding | 1,001 | 919 | 919 |