Stock-Based Compensation (Details 2) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
	Nov. 25, 2014 $ / shares shares	Jun. 30, 2015 USD ($) $ / shares shares	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) plan $ / shares shares	Jun. 30, 2014 USD ($)
Fair value assumptions
Stock-based employee compensation expense | $				$ 398	$ 354
Original option plan August 2004
Information relating to stock options
Number of shares of common stock reserved for issuance		1,000,000		1,000,000
Second option plan January 2007
Information relating to stock options
Number of shares of common stock reserved for issuance		500,000		500,000
Stock Option Plans
Information relating to stock options
Number of plans | plan				2
Number of shares of common stock reserved for issuance		1,500,000		1,500,000
Period during which options are exercisable				10 years
Vesting of awards per year (as a percent)				33.33%
Award vesting period				3 years
Fair value assumptions
Fair Value (in dollars per share) | $ / shares	$ 8.17
Dividend Yield (as a percent)	1.90%
Risk-Free Interest Rate (as a percent)	0.96%
Expected Volatility (as a percent)	28.00%
Expected Life	3 years
Stock-based employee compensation expense | $		$ 136	$ 121
Remaining unrecognized compensation expense | $		$ 813		$ 813
Weighted average period for recognition				1 year 5 months 27 days
Activity under stock option plans, number of shares
Outstanding at beginning of the period (in shares)				282,001
Granted (in shares)				81,100
Exercised (in shares)				0
Outstanding at end of the period (in shares)		363,101		363,101
Vested or expected to vest (in shares)		342,016		342,016
Exercisable at end of period (in shares)		239,367		239,367
Outstanding at end of period, Aggregate Intrinsic Value | $		$ 1,243		$ 1,243
Vested or expected to vest, Aggregate Intrinsic Value | $		1,192		1,192
Exercisable at end of the period, Aggregate Intrinsic Value | $		$ 1,015		$ 1,015
Weighted Average Exercise Prices
Outstanding at beginning of the period (in dollars per share) | $ / shares				$ 51.61
Granted (in dollars per share) | $ / shares				46.72
Outstanding at end of period (in dollars per share) | $ / shares		$ 50.52		50.52
Vested or expected to vest (in dollars per share) | $ / shares		50.66		50.66
Exercisable at end of the period (in dollars per share) | $ / shares		$ 51.66		$ 51.66
Outstanding at end of the period, Weighted Average Remaining Contractual Life				5 years 8 months 12 days
Vested or expected to vest, Weighted Average Remaining Contractual Life				5 years 6 months 22 days
Exercisable at end of the period, Weighted Average Remaining Contractual Life				4 years 4 days
Stock Option Plans | Certain Employees
Activity under stock option plans, number of shares
Granted (in shares)	81,100
Weighted Average Exercise Prices
Granted (in dollars per share) | $ / shares	$ 46.72