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Changes in Stockholders' Equity and Comprehensive Income (Tables)
3 Months Ended
Jun. 30, 2015
Stockholders' Equity Note [Abstract]  
Schedule of changes in Stockholders' Equity
                Accumulated  
    Additional           Other  
    Paid-In     Retained     Comprehensive  
    Capital     Earnings     Gain (Loss)  
                   
 Beginning balance at March 31, 2015:   $ 3,117     $ 72,343     $ (54 )
    Share based compensation     371       -       -  
    Dividends declared     -       (3,646 )     -  
    Net Income     -       5,757       -  
    Net change in unrealized loss on short term investments     -       -       (35 )
 Ending balance at June 30, 2015:   $ 3,488     $ 74,454     $ (89 )