XML 52 R41.htm IDEA: XBRL DOCUMENT v3.21.2
Note 3 - Revenues (Details Textual) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Contract with Customer, Liability, Current $ 23,970 $ 21,051
Contract with Customer, Liability, Revenue Recognized $ 18,300