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Goodwill (Details) | 9 Months Ended
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Jun. 30, 2016
Goodwill [Line Items] |
Discount rate | 10.60%
Residual capitalization rate | 7.60%
CAPM forecast period (years) | 5 years
Long-term growth rate | 3.00%
Expected control premium rate | 25.00%
Minimum |
Goodwill [Line Items] |
Annual loan growth rate | 3.00%
Annual deposit growth rate | 2.50%
Return on assets | 0.90%
Maximum |
Goodwill [Line Items] |
Annual loan growth rate | 3.90%
Annual deposit growth rate | 3.50%
Return on assets | 1.10%

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- Definition Goodwill Impairment, Capital Asset Pricing Model, Forecast Period + References No definition available. + Details
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Period Type: | duration

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- Definition Goodwill Impairment, Capitalization Rate + References No definition available. + Details
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Namespace Prefix: | tsbk_
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Balance Type: | na
Period Type: | instant

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- Definition Goodwill Impairment, Deposit Growth Rate + References No definition available. + Details
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Balance Type: | na
Period Type: | instant

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- Definition Goodwill Impairment, Loan Growth Rate + References No definition available. + Details
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Namespace Prefix: | tsbk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Goodwill Impairment, Long-Term Growth Rate + References No definition available. + Details
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Balance Type: | na
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- Definition Goodwill Impairment Test, Discount Rate + References No definition available. + Details
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Balance Type: | na
Period Type: | instant

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- Definition Goodwill Impairment Test, Expected Control Premium + References No definition available. + Details
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Balance Type: | na
Period Type: | instant

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- Definition Goodwill Impairment Test, Return on Assets + References No definition available. + Details
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Balance Type: | na
Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |