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Shareholders' Equity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
May. 16, 2015
May. 05, 2015
Apr. 29, 2015
Mar. 31, 2015
Mar. 31, 2014
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Balance at the beginning of the period       $ 76,016 $ 70,335
Net income       1,272 485
Share-based compensation       238 84
Tax benefit - stock option exercise       7 87
Exercise of stock options       20 1,021
Dividends       (319) 0
Stock issued for acquisitions       0 1,679
Unrealized gain or loss on investments, net of tax       55 73
Foreign currency translation adjustment       (180) 0
Balance at end of the period       $ 77,109 $ 73,764
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 May 15, 2015        
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Dividends Payable, Date of Record   May 04, 2015