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Stock Ownership Plans (Tables) | 12 Months Ended
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Sep. 30, 2012
Stock Options [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] | A summary of stock option activity is as follows:
(Thousands of Shares) | 2012 |  |  | 2011 |  |  | 2010 |
Under option, beginning of year | 1,812 |  |  | 940 |  |  | 1,009 |
Granted | 1,520 |  |  | 1,105 |  |  | — |
Exercised | — |  |  | (15 | ) |  | — |
Canceled | (230 | ) |  | (218 | ) |  | (69 | )
Under option, end of year | 3,102 |  |  | 1,812 |  |  | 940 |
Exercisable, end of year | 1,298 |  |  | 552 |  |  | 423 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value [Table Text Block] | Weighted average prices of stock options are as follows:
(Dollars) | 2012 |  |  | 2011 |  |  | 2010 |
Granted | 1.16 |  |  | 2.57 |  |  | — |
Under option, end of year | 3.18 |  |  | 5.07 |  |  | 8.77 |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] | The following assumptions were used to estimate the fair value of 2012 and 2011 option awards:
| 2012 |  |  | 2011 |
Volatility (Percent) | 122 |  |  | 111 |
Risk-free interest rate (Percent) | 0.76 |  |  | 1.01 |
Expected term (Years) | 4.7 |  |  | 4.7 |
Estimated fair value (Dollars) | 0.95 |  |  | 2.00 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block] | A summary of stock options outstanding at September 30, 2012 is as follows:
(Dollars) | Options Outstanding |  |  | Options Exercisable |
Range of Exercise Prices | Number Outstanding |  | Weighted Average Remaining Contractual Life (Years) |  | Weighted Average Exercise Price |  |  | Number Exercisable |  |  | Weighted Average Exercise Price |
1 - 5 | 2,971,125 |  | 8.5 |  | 1.79 |  |  | 1,166,890 |  |  | 2.31 |
5 - 50 | 131,321 |  | 2.9 |  | 34.59 |  |  | 131,321 |  |  | 34.59 |
| 3,102,446 |  | 8.2 |  | 3.18 |  |  | 1,298,211 |  |  | 5.58 |
Restricted Stock [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] | A summary of restricted Common Stock activity follows:
(Thousands of Shares) | 2012 |  |  | 2011 |  |  | 2010 |
Outstanding, beginning of year | — |  |  | 299 |  |  | 453 |
Granted | 500 |  |  | — |  |  | — |
Vested | — |  |  | (297 | ) |  | (143 | )
Forfeited | — |  |  | (2 | ) |  | (11 | )
Outstanding, end of year | 500 |  |  | — |  |  | 299 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value [Table Text Block] | Weighted average grant date fair values of restricted Common Stock are as follows:
(Dollars) | 2012 |  |  | 2011 |  |  | 2010 |
Outstanding, beginning of year | — |  |  | 15.02 |  |  | 19.35 |
Granted | 1.31 |  |  | — |  |  | — |
Vested | — |  |  | 15.02 |  |  | 28.73 |
Forfeited | — |  |  | 15.02 |  |  | 15.02 |
Outstanding, end of year | 1.31 |  |  | — |  |  | 15.02 |

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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + 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 (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the weighted-average grant-date fair value of equity options or other equity instruments granted during the year. + 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)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number of fully vested share options (or share units) and share options expected to vest at the date of the latest statement of financial position, weighted-average exercise price (or conversion ratio), aggregate intrinsic value (except for nonpublic entities), and weighted-average remaining contractual term for both options (or share units) currently outstanding and options (or share units) exercisable (or convertible). + 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 (e) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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