Annual report pursuant to Section 13 and 15(d)

Revenue recognition - Changes in Deferred License Revenue and Deferred Gift Card Revenue (Details)

v3.20.4
Revenue recognition - Changes in Deferred License Revenue and Deferred Gift Card Revenue (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Deferred gift card revenue acquired in Kona Grill acquisition   $ 2,277
Deferred license revenue    
Revenue recognized $ 206 483
Deferred gift card and gift certificate revenue    
Revenue recognized $ 1,904 $ 2,145