Dilutive Effect of Company's Stock Options Restricted Shares and Performance Shares (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Schedule Of Earnings Per Share Basic And Diluted [Line Items]
Income from continuing operations	$ 1,154	$ 1,177
Income (loss) from discontinued operations, net of tax	(207)	2,238
Net income	$ 947	$ 3,415
Weighted-average common shares outstanding (basic) (in shares)	5,378	5,340
Weighted-average common shares outstanding (diluted) (in shares)	5,408	5,385
Net income per share – basic
Continuing operations (in dollars per share)	$ 0.22	$ 0.22
Discontinued operations (in dollars per share)	$ (0.04)	$ 0.42
Net income (in dollars per share)	$ 0.18	$ 0.64
Net income per share – diluted:
Continuing operations (in dollars per share)	$ 0.21	$ 0.22
Discontinued operations (in dollars per share)	$ (0.04)	$ 0.41
Net income (in dollars per share)	$ 0.17	$ 0.63
Anti-dilutive weighted-average common shares excluded from calculation of diluted earnings per share (in shares)	20	105
Stock options
Schedule Of Earnings Per Share Basic And Diluted [Line Items]
Effect of dilutive securities (in shares)	0	1
Restricted shares
Schedule Of Earnings Per Share Basic And Diluted [Line Items]
Effect of dilutive securities (in shares)	16	8
Performance shares
Schedule Of Earnings Per Share Basic And Diluted [Line Items]
Effect of dilutive securities (in shares)	14	36