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Significant Accounting Policies (Details) (Restatement Adjustment [Member], USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2012 | Mar. 31, 2012 | Sep. 30, 2011 | Sep. 30, 2011
Restatement Adjustment [Member] |  |  |  |
Revision of prior period financial [Abstract] |  |  |  |
Cost of goods sold, decrease |  |  | $ 355 | $ 726
Gross profit increase |  |  | 355 | 726
Selling, general and administrative expense, increase |  |  | 101 | 207
other expense - net increased |  |  | 197 |
Provision for income tax decrease |  |  | 318 |
Provision for income tax increase |  |  |  | 694
Earnings from continuing operations decreased |  |  |  | 175
Earnings from continuing operations increased |  |  | 375 |
Diluted earnings per share from continuing operations, increase (in dollars per share) |  |  | $ 0.01 |
Diluted net earnings per share, increase (in dollars per share) |  |  | $ 0.01 |
Out-of-period adjustments [Abstract] |  |  |  |
Pre-Tax Earnings understated |  | 542 |  |
Pre-Tax Earnings overstated | $ 542 |  |  |

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