XML 47 R66.htm IDEA: XBRL DOCUMENT v3.20.1
Note 16 - Revenues (Details Textual) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Dec. 31, 2018
Contract with Customer, Liability, Total $ 3,673 $ 3,949 $ 3,715 $ 3,820