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Stock Options and Awards (Tables) | 12 Months Ended
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Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] | The following table summarizes stock-based compensation expense in the Company's consolidated statements of operations:
| Years ended
| September 30, 2017 |  | September 30, 2016
| (Amounts in thousands)
Cost of sales | $ | 6 |  |  | $ | 2 |
Engineering and development | 24 |  |  | 6 |
Selling, general and administrative | 547 |  |  | 406 |
Total | $ | 577 |  |  | $ | 414 |
Share-based Compensation, Stock Options, Activity [Table Text Block] | The following tables provide summary data of stock option award activity:
| Number of Shares |  | Weighted average exercise price |  | Weighted Average Remaining Contractual Term |  | Aggregate Intrinsic Value (in thousands)
Outstanding at September 30, 2015 | 55,126 |  |  | $ | 6.43 |  |  | — |  |  | — |
Granted | — |  |  | — |  |  | — |  |  | — |
Expired | (17,500 | ) |  | $ | 6.61 |  |  | — |  |  | — |
Forfeited | — |  |  | — |  |  | — |  |  | — |
Exercised | (14,000 | ) |  | 6.20 |  |  | — |  |  | — |
Outstanding at September 30, 2016 | 23,626 |  |  | $ | 5.76 |  |  | — |  |  | — |
Granted | — |  |  | — |  |  | — |  |  | — |
Expired | (9,250 | ) |  | $ | 9.30 |  |  | — |  |  | — |
Forfeited | — |  |  | — |  |  | — |  |  | — |
Exercised | (5,000 | ) |  | 2.99 |  |  | — |  |  | — |
Outstanding at September 30, 2017 | 9,376 |  |  | $ | 4.49 |  |  | 1.35 Years |  |  | $ | 62 |
Exercisable at September 30, 2017 | 9,376 |  |  | $ | 4.49 |  |  | 1.35 Years |  |  | $ | 62 |
Vested and expected to vest at September 30, 2017 | 9,376 |  |  | $ | 4.49 |  |  | 1.35 Years |  |  | $ | 62 |
Schedule of Nonvested Share Activity [Table Text Block] | The following table provides summary data of nonvested stock award activity:
| Number of nonvested shares |  | Weighted Average grant date Fair Value |  | Weighted Average Remaining Contractual Term |  | Aggregate Intrinsic Value (in thousands)
Nonvested shares outstanding at September 30, 2015 | 130,457 |  |  | $ | 6.08 |  |  | 2.12 Years |  |  | $ | 714 |
Activity in 2016: |  |  |  |  |  |  |  |  |  |  |
Granted | 105,395 |  |  | $ | 6.47 |  |  | — |  |  | — |
Vested | (48,444 | ) |  | $ | 6.33 |  |  | — |  |  | — |
Forfeited | (21,700 | ) |  | 7.38 |  |  | — |  |  | — |
Nonvested shares outstanding at September 30, 2016 | 165,708 |  |  | $ | 6.38 |  |  | 2.20 Years |  |  | $ | 1,695 |
Activity in 2017: |  |  |  |  |  |  |  |  |  |  |
Granted | 94,000 |  |  | $ | 10.18 |  |  | — |  |  | — |
Vested | (71,587 | ) |  | $ | 6.59 |  |  | — |  |  | — |
Forfeited | (8,300 | ) |  | 7.11 |  |  | — |  |  | — |
Nonvested shares outstanding at September 30, 2017 | 179,821 |  |  | $ | 8.64 |  |  | 2.23 Years |  |  | $ | 1,987 |
Vested at September 30, 2017 | 250,864 |  |  | $ | 5.96 |  |  | 0.31 Years |  |  | $ | 2,772 |
Vested and expected to vest at September 30, 2017 | 430,685 |  |  | $ | 7.08 |  |  | 1.11 Years |  |  | $ | 4,759 |

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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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