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Operatons and summary of significant accounting policies (Table) | 12 Months Ended
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Sep. 30, 2017
Basis of Presentation |
Schedule of Reclassifications of Amortization Expense of Intangible Assets | ﻿ ﻿
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |
﻿ | Year Ended September 30,
﻿ | 2017 |  | 2016 |  | 2015
﻿ |  |  |  |  |  |  |  |
﻿Allocation to Cost of goods sold | $ | 7,800 |  | $ | 8,420 |  | $ | 9,115
﻿Allocation to Selling, general and administrative expenses |  | 17,977 |  |  | 19,066 |  |  | 20,126
﻿Total amortization of intangible assets | $ | 25,777 |  | $ | 27,486 |  | $ | 29,241
﻿ ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ | 2017 Fiscal Quarters
﻿ | First |  | Second |  | Third |  | Fourth
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿Allocation to Cost of goods sold | $ | 1,954 |  | $ | 1,943 |  | $ | 1,948 |  | $ | 1,955
﻿Allocation to Selling, general and administrative expenses |  | 4,504 |  |  | 4,488 |  |  | 4,491 |  |  | 4,494
﻿Total amortization of intangible assets | $ | 6,458 |  | $ | 6,431 |  | $ | 6,439 |  | $ | 6,449
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ | 2016 Fiscal Quarters
﻿ | First |  | Second |  | Third |  | Fourth
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿Allocation to Cost of goods sold | $ | 2,180 |  | $ | 2,162 |  | $ | 2,117 |  | $ | 1,961
﻿Allocation to Selling, general and administrative expenses |  | 4,766 |  |  | 4,764 |  |  | 4,770 |  |  | 4,766
﻿Total amortization of intangible assets | $ | 6,946 |  | $ | 6,926 |  | $ | 6,887 |  | $ | 6,727
﻿
Schedule of Accounts Receivable |
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | September 30, |  | September 30,
﻿ |  | 2017 |  | 2016
﻿Accounts receivable from: |  |  |  |  |  |
﻿Customers |  | $ | 367,715 |  | $ | 341,215
﻿Other (Chinese financial institutions) |  |  | 38,243 |  |  | 5,093
﻿Allowance for uncollectible customer amounts |  |  | (3,776) |  |  | (2,540)
﻿ |  | $ | 402,182 |  | $ | 343,768
﻿
Schedule of Property, Plant and Equipment Useful Lives |
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿Land improvements |  | 3 | - | 20 |  | years
﻿Buildings and improvements |  | 3 | - | 40 |  | years
﻿Leasehold improvements |  | 1 | - | 10 |  | years
﻿Machinery and production equipment |  | 3 | - | 20 |  | years
﻿Computer equipment and software |  | 3 | - | 10 |  | years
﻿Office furniture and equipment |  | 3 | - | 13 |  | years
﻿Other |  | 3 | - | 13 |  | years
﻿
Schedule of Finite-Lived Intangible Assets Useful Lives |
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿Customer relationships |  | 9 | - | 30 |  | years
﻿Intellectual property |  | 10 | - | 17 |  | years
﻿Process technology |  | 8 | - | 30 |  | years
﻿Other |  |  |  | 15 |  | years
﻿

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