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v3.21.2

Selected Balance Sheet Data (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Sep. 30, 2020
--- | --- | ---
Accounts receivable, net: |  |
Accounts receivable | $ 51,828 | $ 65,027
Less allowance for doubtful accounts | 3,934 | 3,778
Less reserve for future credit returns and pricing adjustments | 4,156 | 2,022
Total accounts receivable, net | 43,738 | 59,227
Inventories: |  |
Raw materials | 27,265 | 14,009
Work in process | 14 | 0
Finished goods | 16,642 | 37,559
Total Inventories | 43,921 | 51,568
Property, Plant and Equipment, Net |  |
Total property, equipment and improvements, gross | 41,177 | 40,015
Less accumulated depreciation and amortization | 29,045 | 28,508
Total property, equipment and improvements, net | 12,132 | 11,507
Land |  |
Property, Plant and Equipment, Net |  |
Total property, equipment and improvements, gross | 570 | 570
Buildings |  |
Property, Plant and Equipment, Net |  |
Total property, equipment and improvements, gross | 2,338 | 2,338
Improvements |  |
Property, Plant and Equipment, Net |  |
Total property, equipment and improvements, gross | 9,367 | 7,844
Equipment |  |
Property, Plant and Equipment, Net |  |
Total property, equipment and improvements, gross | 16,878 | 17,153
Purchased Software |  |
Property, Plant and Equipment, Net |  |
Total property, equipment and improvements, gross | 2,868 | 3,770
Furniture and Fixtures |  |
Property, Plant and Equipment, Net |  |
Total property, equipment and improvements, gross | 2,174 | 3,236
Subscriber assets |  |
Property, Plant and Equipment, Net |  |
Total property, equipment and improvements, gross | $ 6,982 | $ 5,104

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