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Summary of Significant Accounting Policies and Select Balance Sheet Information (Details) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2012 | Sep. 30, 2011
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Schedule of available for sale securities |  |
Original Cost | $ 42,186 | $ 41,675
Unrealized Gains | 405 | 393
Unrealized Losses | (41) | (118)
Fair Value | 42,550 | 41,950
U.S. government and government agency obligations [Member] |  |
Schedule of available for sale securities |  |
Original Cost | 28,641 | 30,433
Unrealized Gains | 213 | 176
Unrealized Losses |  | (6)
Fair Value | 28,854 | 30,603
Mortgage-backed securities [Member] |  |
Schedule of available for sale securities |  |
Original Cost | 2,896 | 3,871
Unrealized Gains | 129 | 131
Unrealized Losses | (26) | (54)
Fair Value | 2,999 | 3,948
Municipal Bonds [Member] |  |
Schedule of available for sale securities |  |
Original Cost | 3,178 | 3,561
Unrealized Gains | 35 | 53
Fair Value | 3,213 | 3,614
Asset-backed securities [Member] |  |
Schedule of available for sale securities |  |
Original Cost | 613 | 1,336
Unrealized Gains |  | 1
Unrealized Losses | (15) | (49)
Fair Value | 598 | 1,288
Corporate Bonds [Member] |  |
Schedule of available for sale securities |  |
Original Cost | 6,858 | 2,474
Unrealized Gains | 28 | 32
Unrealized Losses |  | (9)
Fair Value | $ 6,886 | $ 2,497

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