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Note 5 - Accounts Receivable, Net - Summary of Accounts Receivable, Net (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Accounts receivable $ 13,275 $ 13,785
Less allowance for uncollectible accounts receivable (34) (116)
Accounts receivable, net $ 13,241 $ 13,669