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Income Taxes (Tables) | 12 Months Ended
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Aug. 31, 2012
Income Taxes [Abstract] |
Schedule Of Earnings Before Income Taxes |
|  | For the years ended August 31,
$ in thousands |  | 2012 |  | 2011 |  | 2010
United States |  | $ | 57,884 |  | $ | 53,879 |  | $ | 34,165
Foreign |  |  | 7,224 |  |  | 2,635 |  |  | 2,617
|  | $ | 65,108 |  | $ | 56,514 |  | $ | 36,782
Schedule Of Significant Components Of Income Tax Provision |
|  | For the years ended August 31,
$ in thousands |  | 2012 |  | 2011 |  | 2010
Current: |  |  |  |  |  |  |  |  |
Federal |  | $ | 21,694 |  | $ | 18,705 |  | $ | 11,077
State |  |  | 1,026 |  |  | 1,309 |  |  | 770
Foreign |  |  | 2,979 |  |  | 2,526 |  |  | 1,573
Total current |  |  | 25,699 |  |  | 22,540 |  |  | 13,420
Deferred: |  |  |  |  |  |  |  |  |
Federal |  |  | (3,829) |  |  | (1,484) |  |  | 501
State |  |  | 614 |  |  | (29) |  |  | (1,364)
Foreign |  |  | (653) |  |  | (1,315) |  |  | (637)
Total deferred |  |  | (3,868) |  |  | (2,828) |  |  | (1,500)
Total income tax provision |  | $ | 21,831 |  | $ | 19,712 |  | $ | 11,920
Schedule of Effective Income Tax Rate Reconciliation |
|  | For the years ended August 31,
$ in thousands |  | 2012 |  | 2011 |  | 2010
|  | Amount |  | % |  | Amount |  | % |  | Amount |  | %
U.S. statutory rate |  | $ | 22,788 |  | 35.0 |  | $ | 19,780 |  | 35.0 |  | $ | 12,874 |  | 35.0
State and local taxes, net of federal tax benefit |  |  | 1,337 |  | 2.0 |  |  | 889 |  | 1.6 |  |  | 540 |  | 1.5
State tax credits |  |  | - |  | - |  |  | - |  | - |  |  | (1,393) |  | (3.8)
Foreign tax rate differences |  |  | (338) |  | (0.5) |  |  | (257) |  | (0.5) |  |  | (122) |  | (0.3)
Domestic production activities deduction |  |  | (1,900) |  | (2.9) |  |  | (1,301) |  | (2.3) |  |  | (608) |  | (1.7)
Research and development, phone, and fuel tax credits |  |  | (105) |  | (0.2) |  |  | (239) |  | (0.4) |  |  | (28) |  | (0.1)
Other |  |  | 49 |  | 0.1 |  |  | 840 |  | 1.5 |  |  | 657 |  | 1.8
Effective rate |  | $ | 21,831 |  | 33.5 |  | $ | 19,712 |  | 34.9 |  | $ | 11,920 |  | 32.4
Schedule of Deferred Tax Assets and Liabilities |
|  | August 31,
$ in thousands |  | 2012 |  | 2011
Deferred tax assets: |  |  |  |  |  |
Deferred rental revenue |  | $ | 382 |  | $ | 1,233
Employee benefits liability |  |  | 1,282 |  |  | 1,305
Net operating loss carryforwards |  |  | 284 |  |  | 74
Defined benefit pension plan |  |  | 1,554 |  |  | 1,306
Share-based compensation |  |  | 2,284 |  |  | 1,614
State tax credits |  |  | 48 |  |  | 802
Inventory |  |  | 633 |  |  | 789
Warranty |  |  | 1,686 |  |  | 1,268
Vacation |  |  | 224 |  |  | 200
Accrued expenses and allowances |  |  | 6,610 |  |  | 5,039
Total deferred tax assets |  | $ | 14,987 |  | $ | 13,630
Deferred tax liabilities: |  |  |  |  |  |
Intangible assets |  |  | (6,195) |  |  | (7,088)
Property, plant and equipment |  |  | (8,210) |  |  | (9,054)
Inventory |  |  | (115) |  |  | (113)
Other |  |  | (296) |  |  | (1,058)
Total deferred tax liabilities |  |  | (14,816) |  |  | (17,313)
Net deferred tax liabilities |  | $ | 171 |  | $ | (3,683)
Schedule of Unrecognized Tax Benefits Roll Forward |
|  | August 31,
$ in thousands |  | 2012 |  | 2011
Unrecognized Tax Benefits at September 1 |  | $ | 1,565 |  | $ | 1,112
Increases for positions taken in current year |  |  | 2 |  |  | 78
Increases for positions taken in prior years |  |  | 61 |  |  | 448
Decreases for positions taken in prior years |  |  | (44) |  |  | -
Settlements with taxing authorities |  |  | (42) |  |  | -
Reduction resulting from lapse of applicable statute of limitations |  |  | (173) |  |  | (87)
Other increases (decreases) |  |  | (60) |  |  | 14
Unrecognized Tax Benefits at August 31 |  | $ | 1,309 |  | $ | 1,565

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