XML 61 R41.htm IDEA: XBRL DOCUMENT v3.3.0.814
Note 8 - Summary of Status of Company's Stock Options (Details)
 9 Months Ended
Sep. 30, 2015
$ / shares
shares
Balance, January 1, 2015 (in shares) | shares 38,000
Balance, January 1, 2015 (in dollars per share) $ 26.05
Options exercised (in shares) | shares (2,000)
Options exercised (in dollars per share) $ 22.07
Options cancelled (in shares) | shares (4,000)
Options cancelled (in dollars per share) $ 28.42
Balance, September 30, 2015 (in shares) | shares 32,000
Balance, September 30, 2015 (in dollars per share) $ 26
Balance, September 30, 2015 3 years 197 days
Exercisable, September 30, 2015 (in shares) | shares 32,000
Exercisable, September 30, 2015 (in dollars per share) $ 26
Exercisable, September 30, 2015 3 years 197 days