XML 89 R77.htm IDEA: XBRL DOCUMENT v3.19.1
Note 11 - Net Income Per Share (Details Textual) - shares
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 10,344 27,336 52,377