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Stock Plans And Stock Based Compensation (Details) - USD ($)
$ in Thousands
3 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Jun. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock options, outstanding, aggregate intrinsic value $ 1,059    
Number of unvested stock options 233,800   146,400
Unvested stock options, aggregate grant date fair value $ 506   $ 363
Unvested stock options, aggregate intrinsic value $ 535    
Stock options vested during period 28,500 37,700  
Stock options vested during period, aggregate grant date fair value $ 67 $ 86  
Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Description of stock option plan Under the Company’s stock option plans (the 1999 Stock Option Plan and the 2003 Stock Option Plan), the Company was able to grant options for up to a combined total of 1,622,500 shares of common stock to employees, officers and directors.  Shares issued may be purchased in the open market or may be issued from authorized and unissued shares.  The exercise price of each option equals the fair market value of the Company’s common stock on the date of grant.    
Number of shares authorized 2,151,500    
Stock options, fair value assumptions method The Company uses the Black-Scholes option pricing model to estimate the fair value of stock-based awards    
Stock Grants      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Description of stock option plan The Company adopted the Management Recognition and Development Plan (“MRDP”) in 1998 for the benefit of employees, officers and directors of the Company.  The objective of the MRDP is to retain and attract personnel of experience and ability in key positions by providing them with a proprietary interest in the Company.    
Terms of stock awards Awards under the MRDP were made in the form of shares of common stock that are subject to restrictions on the transfer of ownership    
Officers or Directors      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock awards, granted during period   0