XML 61 R45.htm IDEA: XBRL DOCUMENT v3.21.2
Summary of Significant Accounting Policies - Advertising Costs Incurred (Details) (10-K) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Accounting Policies [Abstract]      
Advertising expense $ 13,903 $ 12,774 $ 11,576