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Note 3 - Revenue Recognition - Contract Assets and Liabilities (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Deferred revenue $ 4,679 $ 4,247
Increases due to consideration received from customers 3,169 4,836
Revenue recognized (4,034) (4,335)
Decrease due to sale of Molded Fiber 0 (575)
Deferred revenue 3,814 4,173
Unbilled receivables - beginning of period 270 74
Increases due to revenue recognized, not invoiced to customers 2,898 3,065
Decreases due to customer invoicing (3,020) (2,429)
Unbilled receivables - end of period $ 148 $ 710