XML 58 R47.htm IDEA: XBRL DOCUMENT v3.21.2
Revenue Recognition (Details Narrative) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Revenue from Contract with Customer [Abstract]    
Accounts receivable from contracts with customers, net of allowance for doubtful accounts $ 2,300 $ 2,500
Deferred revenue from contracts with customers $ 1,564 $ 1,132