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Summary of Significant Accounting Policies and New Accounting Standards (Tables)
6 Months Ended
Dec. 31, 2017
Accounting Policies [Abstract]  
Schedule of Net Income per Share and Weighted Average Shares
Three Months
Six Months
For the Periods Ended December 31
2017
2016
2017
2016
Net income
$ 7,032 $ 13,417 $ 22,924 $ 25,594
Weighted average number of shares – basic
40,186 39,411 40,065 39,409
Dilutive effect of stock options
178 591 264 545
Weighted average number of shares – diluted
40,364 40,002 40,329 39,954
Net income per share
basic
$ 0.17 $ 0.34 $ 0.57 $ 0.65
diluted
$ 0.17 $ 0.34 $ 0.57 $ 0.64