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Segment Information and Major Customers (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2014 customer | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 customer | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2014 segment customer | Sep. 30, 2013 customer | Sep. 30, 2012 customer
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of operating segments |  |  |  |  |  |  |  |  | 1 |  |
Number of reportable segments |  |  |  |  |  |  |  |  | 1 |  |
Total revenue | $ 51,612 | $ 47,885 | $ 45,882 | $ 47,322 | $ 51,369 | $ 48,824 | $ 48,197 | $ 46,991 | $ 192,701 | $ 195,381 | $ 190,558
Total property, equipment and improvements | 13,231 |  |  |  | 13,910 |  |  |  | 13,231 | 13,910 | 15,157
Number of customer representing over ten percent of revenue |  |  |  |  |  |  |  |  | 0 | 0 | 0
Number of customer representing over ten percent of consolidated accounts receivable | 0 |  |  |  | 1 |  |  |  | 0 | 1 | 0
Single customer representing over ten percent of consolidated accounts receivable, percent |  |  |  |  | 13.80% |  |  |  |  | 13.80% |
North America, primarily United States |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  | 116,421 | 116,541 | 112,398
United States |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total property, equipment and improvements | 12,813 |  |  |  | 13,321 |  |  |  | 12,813 | 13,321 | 14,233
United States | U.S. Export Net Sales |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of revenue |  |  |  |  |  |  |  |  | 41.20% | 41.70% | 39.60%
Europe, Middle East and Africa |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  | 47,729 | 48,815 | 47,042
Asia |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  | 22,762 | 24,507 | 24,844
Latin America |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  | 5,789 | 5,518 | 6,274
International, primarily Europe |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total property, equipment and improvements | 418 |  |  |  | 589 |  |  |  | 418 | 589 | 924
Growth hardware product and all services |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  | 109,763 | 110,350 | 99,257
Mature hardware products |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  | $ 82,938 | $ 85,031 | $ 91,301

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