XML 43 R38.htm IDEA: XBRL DOCUMENT v3.19.3
Note 5 - Revenues - Contract Assets and Liabilities (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Balance $ 1,101 $ 1,009 $ 554 $ 580
Unbilled membership dues 284 184 1,813 1,475
Billings (532) (419) (1,514) (1,281)
Balance 853 774 853 774
Balance     2,900  
Balance 3,900   3,900  
Deferred Membership Dues [Member]        
Balance 4,497 4,034 2,899 2,718
Billings 831 595 5,175 4,504
Revenue recognized (1,474) (1,278) (4,220) (3,871)
Balance 3,854 3,351 3,854 3,351
Billings 831 595 5,175 4,504
Revenue recognized (1,474) (1,278) (4,220) (3,871)
Customer Advance Deposits [Member]        
Balance 556 491 453 430
Billings 438 514 1,100 1,186
Revenue recognized (487) (582) (1,046) (1,193)
Balance 507 423 507 423
Billings 438 514 1,100 1,186
Revenue recognized $ (487) $ (582) $ (1,046) $ (1,193)