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Balance Sheet Detail - Accounts receivable - long term, net (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Accounts receivable - long term |  |
Total amount due from customer | $ 1,853 | $ 5,656
Less unamortized discount | (49) | (194)
Less current portion included in accounts receivable | (1,500) | (4,104)
Total of accounts receivable, long term, net | $ 304 | $ 1,358

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- Definition The amount of discount given on long term accounts receivable. + References No definition available. + Details
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