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Shareholders' Equity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Aug. 11, 2015
Jul. 28, 2015
Jul. 17, 2015
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Balance at the beginning of the period       $ 77,109 $ 73,764 $ 76,016 $ 70,335
Net income       1,515 882 2,787 1,369
Stock Repurchased and Retired During Period, Value       0 (1,169) 0 (1,169)
Share-based compensation       217 84 455 168
Tax benefit - stock option exercise       22 5 29 90
Exercise of stock options       70 244 90 1,265
Dividends       (320) 0 (639) 0
Stock issued for acquisitions       0 0 0 1,679
Unrealized gain or loss on investments, net of tax       (77) 65 (22) 138
Foreign currency translation adjustment       129 0 (51) 0
Balance at end of the period       $ 78,665 $ 73,875 $ 78,665 $ 73,875
Subsequent Event [Member] | QuarterlyDividend-Q1 [Member]              
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]              
Common Stock, Dividends, Per Share, Declared     $ 0.035        
Dividends Payable, Date to be Paid Aug. 10, 2015            
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Dividends Payable, Date of Record   Jul. 27, 2015