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Share-Based Payment Arrangements (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended 24 Months Ended
Apr. 01, 2016
Mar. 31, 2016
May 29, 2015
Apr. 02, 2015
Mar. 31, 2015
Apr. 10, 2013
Jul. 27, 2012
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2013
Sep. 30, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Other than options, granted 7,144     8,616                        
Stock options, granted                              
Long Term Incentive Plan 2005 [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Number of incentive stock options to purchase shares of common stock outstanding               502,574                
Number of non-qualified stock options to purchase shares of common stock outstanding               304,157                
Number of restricted stock units to receive shares of common stock               177,755                
Long Term Incentive Plan 2005 [Member] | Option Issued Prior to 2009 [Member] | Share-based Compensation Award, Tranche One [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Percentage of options vested or expected to vest               10.00%   10.00%            
Long Term Incentive Plan 2005 [Member] | Option Issued Prior to 2009 [Member] | Share-based Compensation Award, Tranche Two [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Percentage of options vested or expected to vest               20.00%   20.00%            
Long Term Incentive Plan 2005 [Member] | Option Issued Prior to 2009 [Member] | Share-based Compensation Award, Tranche Three [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Percentage of options vested or expected to vest               30.00%   30.00%            
Long Term Incentive Plan 2005 [Member] | Option Issued Prior to 2009 [Member] | Share-based Compensation Award, Tranche Four [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Percentage of options vested or expected to vest               40.00%   40.00%            
Long Term Incentive Plan 2005 [Member] | Minimum [Member] | Option Issued Prior to 2009 [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Incentive stock options termination period               5 years                
Long Term Incentive Plan 2005 [Member] | Maximum [Member] | Option Issued Prior to 2009 [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Incentive stock options termination period               10 years                
Long Term Incentive Plan 2015 [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Stock compensation plan, number of shares authorized     2,000,000                          
Number of restricted stock units to receive shares of common stock               149,196                
Stock options, granted               0                
Long Term Incentive Plan 2005 and 2015 [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Total unrecognized compensation cost related to non-vested share-based compensation arrangements               $ 0   $ 0            
Incentive Stock Options 2009 [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Incentive stock options termination period               7 years                
Share-based payment, award vesting period               10 years                
Incentive Stock Options 2010 [Member] | 25,000 [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Incentive stock options termination period               10 years                
Share-based payment, award vesting period               3 years                
Number of options vested or expected to vest               25,000   25,000            
Non Qualified Stock Options [Member] | Long Term Incentive Plan 2005 [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Percentage of options vested or expected to vest               100.00%   100.00%            
Incentive stock options termination period               10 years                
Share-based payment, award vesting period               6 months                
Incentive Non Qualified Stock Options 2009 [Member] | 200,000 Grant [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Incentive stock options termination period               10 years                
Share-based payment, award vesting period               7 years                
Number of options vested or expected to vest               200,000   200,000            
Restricted Stock Units (RSUs) [Member] | Minimum [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Percentage of restricted stock units granted as result of meeting growth rates               50.00%   50.00%            
Restricted Stock Units (RSUs) [Member] | Maximum [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Percentage of restricted stock units granted as result of meeting growth rates               150.00%   150.00%            
Restricted Stock Units (RSUs) [Member] | Long Term Incentive Plan 2005 [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Other than options, granted           122,823 129,463         175,983      
Other than options, forfeited                   71,460   9,280        
Vested   7,144     8,616         7,144            
Other than options, grant date fair value                           $ 11.10 $ 9.66 $ 9.20
Restricted Stock Units (RSUs) [Member] | Long Term Incentive Plan 2015 [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Other than options, granted     103,351                          
Restricted Stock Units (RSUs) [Member] | Long Term Incentive Plan 2005 and 2015 [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Total unrecognized compensation cost related to non-vested share-based compensation arrangements               $ 600   $ 600            
Compensation costs expected to be recognized during remainder of the fiscal period               200   200            
Compensation costs expected to be recognized during next fiscal year               300   300            
Compensation costs expected to be recognized in second future fiscal year               100   100            
Restricted stock or unit expense               89 $ 125 190 $ 457          
Income tax benefit of share-based payments recognized in income               $ 32 $ 44 $ 67 $ 160