XML 90 R78.htm IDEA: XBRL DOCUMENT v3.3.1.900
Note 9 - Stock-Based Compensation - Activity of Stock Option Plan (Details)
 12 Months Ended
Dec. 31, 2014
USD ($)
$ / shares
shares
Outstanding at December 31, 2014 (in shares) | shares 1,197,044
Outstanding at December 31, 2014 (in dollars per share) | $ / shares $ 3.79
Granted (in shares) | shares 217,500
Granted (in dollars per share) | $ / shares $ 0.17
Forfeited or expired (in shares) | shares (231,444)
Forfeited or expired (in dollars per share) | $ / shares $ 1.89
Outstanding at September 30, 2015 (in shares) | shares 1,183,100
Outstanding at September 30, 2015 (in dollars per share) | $ / shares $ 3.50
Weighted average remaining contractual period 6 years 219 days
Aggregate Intrinsic value | $ $ 0
Exercisable at December 31, 2014 (in shares) | shares 785,594
Exercisable at September 30, 2015 (in dollars per share) | $ / shares $ 5.09
Exercisable at December 31, 2014 5 years 73 days
Exercisable at December 31, 2014 | $ $ 0