XML 60 R50.htm IDEA: XBRL DOCUMENT v3.19.1
Stock-Based Compensation - Restricted Stock Plan and Performance Shares (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Nov. 21, 2017
Nov. 22, 2016
Mar. 31, 2019
Dec. 31, 2018
Mar. 31, 2018
Mar. 31, 2019
Mar. 31, 2018
Mar. 01, 2016
Feb. 23, 2009
Restricted Stock | 2009 Restricted Stock Plan                  
Stock-Based Compensation                  
Number of shares authorized under the plan                 400,000
Restricted stock plan activity, number of shares                  
Unvested and deferred at beginning of the period (in shares)       81,993   81,993      
Granted (in shares)           27,938      
Forfeited / Canceled (in shares)           (19,794)      
Vested and deferred (in shares)           (23,449)      
Unvested and deferred at end of the period (in shares)     66,688     66,688      
Expected to vest (in shares)     66,688     66,688      
Restricted stock plan activity, Weighted Average Fair Value at Grant Date                  
Unvested and deferred at beginning of the period (in dollars per share)       $ 37.28   $ 37.28      
Granted (in dollars per share)           34.02      
Forfeited / Canceled (in dollars per share)           37.43      
Vested and deferred (in dollars per share)           38.26      
Unvested and deferred at end of the period (in dollars per share)     $ 35.53     35.53      
Expected to vest (in dollars per share)     $ 35.53     $ 35.53      
Deferred Restricted Stock plan activity, number of shares                  
Vested (in shares)           23,449      
Deferred Restricted Stock plan activity, Weighted Average Fair Value at Grant Date                  
Vested and deferred (in dollars per share)           $ 38.26      
Restricted stock plan activity, other disclosures                  
Compensation expense     $ 219   $ 251 $ 272 $ 565    
Remaining unrecognized compensation expense     $ 1,331     $ 1,331      
Weighted average period for recognition           9 months 7 days      
Restricted Stock | 2009 Restricted Stock Plan | Employees                  
Restricted stock plan activity, other disclosures                  
Repurchase of stock from employees (in shares)       9,226          
Average purchase price (in dollars per share)       $ 33.40          
Deferred Restricted Stock | 2016 Restricted Stock Plan                  
Restricted stock plan activity, number of shares                  
Vested and deferred (in shares)           (16,550)      
Restricted stock plan activity, Weighted Average Fair Value at Grant Date                  
Vested and deferred (in dollars per share)           $ 31.76      
Deferred Restricted Stock plan activity, number of shares                  
Outstanding at beginning of period (in shares)       16,550   16,550      
Granted (in shares)           12,500      
Outstanding at end of period (in shares)     12,500     12,500      
Vested (in shares)           16,550      
Deferred Restricted Stock plan activity, Weighted Average Fair Value at Grant Date                  
Outstanding at beginning of period (in dollars per share)       $ 31.76   $ 31.76      
Granted (in dollars per share)           33.98      
Outstanding at end of period (in dollars per share)     $ 33.98     33.98      
Vested and deferred (in dollars per share)           $ 31.76      
Restricted stock plan activity, other disclosures                  
Compensation expense     $ 106   131 $ 229 175    
Remaining unrecognized compensation expense     283     $ 283      
Weighted average period for recognition           3 months 18 days      
Restricted Stock, Restricted Stock Units and Performance Shares                  
Stock-Based Compensation                  
Number of shares authorized under the plan               275,000  
Performance Shares | Certain Employees                  
Stock-Based Compensation                  
Award vesting period 3 years 3 years              
Remaining unrecognized compensation expense     $ 1,380     $ 1,380      
Restricted stock plan activity, number of shares                  
Unvested and deferred at beginning of the period (in shares)       30,344   30,344      
Granted (in shares)           24,282      
Forfeited / Canceled (in shares)           (1,080)      
Unvested and deferred at end of the period (in shares)     53,546     53,546      
Restricted stock plan activity, Weighted Average Fair Value at Grant Date                  
Unvested and deferred at beginning of the period (in dollars per share)       $ 49.32   $ 49.32      
Granted (in dollars per share)           44.93      
Forfeited / Canceled (in dollars per share)           43.70      
Unvested and deferred at end of the period (in dollars per share)     $ 47.44     $ 47.44      
Restricted stock plan activity, other disclosures                  
Compensation expense     $ 204   $ 185 $ 325 $ 314    
Weighted average period for recognition           1 year 8 months 1 day      
Time-based vesting | Restricted Stock | Employees                  
Stock-Based Compensation                  
Award vesting period   3 years              
Time-based vesting | Restricted Stock | Non-employee director | Maximum                  
Stock-Based Compensation                  
Award vesting period   1 year