XML 52 R38.htm IDEA: XBRL DOCUMENT v3.22.1
Note C - Revenue From Contracts With Customers (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Revenue, Remaining Performance Obligation, Amount $ 0  
Contract with Customer, Liability, Revenue Recognized 4,200 $ 4,500
Capitalized Contract Cost, Net, Total 1,500 $ 1,300
Capitalized Contract Cost, Impairment Loss $ 0