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Stock Option Plans Stock Options Plans (Details) (USD $)
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12 Months Ended |
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Sep. 30, 2012
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Sep. 30, 2011
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Sep. 30, 2010
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Sep. 30, 2009
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Outstanding at September 30, 2009 |
481,000 |
507,051 |
411,975 |
428,783 |
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Exercise Price |
$ 4.32 |
$ 4.45 |
$ 4.42 |
$ 4.35 |
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term |
6 years 1 month 6 days |
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value |
$ 0 |
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Remaining Contractual Term |
4 years 9 months 18 days |
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options |
548,000 |
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|
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| Stock Repurchased and Retired During Period, Value |
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0 |
0 |
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| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant |
57,058 |
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross |
78,000 |
151,000 |
25,000 |
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| Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price |
$ 3.19 |
$ 4.03 |
$ 5.23 |
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |
0 |
(52,924) |
(15,308) |
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| Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price |
$ 0.00 |
$ 3.02 |
$ 3.23 |
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period |
(104,051) |
(3,000) |
(26,500) |
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price |
$ 4.18 |
$ 4.06 |
$ 4.86 |
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number |
254,700 |
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|
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price |
$ 4.57 |
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value |
0 |
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value |
$ 2.03 |
$ 2.54 |
$ 3.54 |
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value |
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0 |
0 |
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| Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized |
$ 0 |
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| Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition |
1 year 4 months 24 days |
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