Earnings Per Share (Computation of Basic and Diluted Earnings per Share) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Numerator:
Income from continuing operations	$ 2,947	$ 9,083	$ 17,190	$ 22,806
Income from discontinued operations		222	9,604	702
Net income	$ 2,947	$ 9,305	$ 26,794	$ 23,508
Denominator:
Weighted average basic shares	12,015	11,941	12,004	11,932
Dilutive effect of restricted stock units	60	75	59	75
Weighted average diluted shares with assumed conversions	12,075	12,016	12,063	12,007
Net earnings per share:
Continuing operations	$ 0.25	$ 0.76	$ 1.43	$ 1.91
Discontinued operations		$ 0.02	$ 0.80	$ 0.06
Basic earnings per share	$ 0.25	$ 0.78	$ 2.23	$ 1.97
Continuing operations	$ 0.24	$ 0.76	$ 1.43	$ 1.90
Discontinued operations		$ 0.02	$ 0.80	$ 0.06
Diluted earnings per share	$ 0.24	$ 0.78	$ 2.23	$ 1.96