STOCK-BASED COMPENSATION (Details) - USD ($)	3 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Mar. 31, 2014	Mar. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	558,618	804,955
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	50.33%	56.18%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	1.85%	1.37%
Stock Option Plans [Abstract]
Number of shares available for grant (in shares)	455,389
Weighted-average fair value at the grant date	$ 22.79	$ 21.64
Options Activity [Roll Forward]
Exercised (in shares)	(92,029)	(33,702)
Restricted Stock [Abstract]
Grant date fair value (in dollars per share)	$ 51.15	$ 28.11
Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Grant date fair value (in dollars per share)	$ 51.15	$ 28.11
Compensation related to stock option and restricted stock plans	$ 1,132,077	$ 553,526
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	5 years	5 years 10 months 24 days
Group B Performance Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Issued During Period, Shares, Share-based Compensation, Gross			56,660	443,700
Stock Options Plans [Member]
Stock Option Plans [Abstract]
Shares of authorized common stock reserved for issuance (in shares)	4,100,000
Options Activity [Roll Forward]
Options outstanding, beginning of year (in shares)	868,141
Granted (in shares)	1,020
Exercised (in shares)	(92,029)
Forfeited (in shares)	(5,710)
Expired (in shares)	(10,400)
Options outstanding, end of period (in shares)	761,022
Options exercisable, end of period (in shares)	452,416
Weighted Average Exercise Price [Roll Forward]
Options outstanding, beginning of year (in dollars per share)	$ 67.33
Granted (in dollars per share)	50.32
Exercised (in dollars per share)	57.97
Forfeited (in dollars per share)	61.48
Expired (in dollars per share)	78.86
Options outstanding, end of period (in dollars per share)	68.33
Options exercisable, end of period (in dollars per share)	$ 71.43
Stock Option Activity Additional Disclosures [Abstract]
Weighted-average remaining contractual term, Options outstanding, end of period	6 years 3 months 15 days
Weighted-average remaining contractual terms, Options exercisable, end of period	5 years 6 months 7 days
Aggregate intrinsic value, Options outstanding, end of period	$ 7,560,490
Aggregate intrinsic value, Options exercisable, end of period	3,149,591
Intrinsic value of options exercised	2,224,880	$ 87,477
Compensation Cost Not yet Recognized [Abstract]
Total unrecognized stock-based compensation expense related to non-vested stock options	$ 4,500,000
Weighted average period for recognition	1 year 8 months 1 day
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Weighted average period for recognition	1 year 8 months 1 day
Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Compensation related to stock option and restricted stock plans	$ 549,311	$ 365,664
Group A Performance Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Issued During Period, Shares, Share-based Compensation, Gross			8,590	70,800
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Issued During Period, Shares, Share-based Compensation, Gross	74,490	69,950
Restricted Stock [Abstract]
Grant date fair value (in dollars per share)	$ 0.00
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options	$ 2,300,000
Summary of the status and changes in restricted stock [Roll Forward]
Outstanding at Beginning of Year (in shares)	111,361
Awards granted (in shares)	0
Vested during the period, net of cancellations (in shares)	(816)
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited	0
Outstanding at End of Period (in shares)	110,545
Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding at March 31, 2012 (in dollars per share)	$ 43.11
Grant date fair value (in dollars per share)	0.00
Vested during the period, net of cancellations (in dollars per share)	43.49
Cancelled during the period (in dollars per share)	0.00
Outstanding at June 30, 2012 (in dollars per share)	$ 43.11
Compensation related to stock option and restricted stock plans	$ 582,766
Restricted Stock [Member] | EPS Target [Member] | $10.29 EPS [Member]
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Vesting Percentage (in hundredths)	100.00%
EPS Target	$ 10.29
Restricted Stock [Member] | EPS Target [Member] | $9.76 EPS [Member]
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Vesting Percentage (in hundredths)	67.00%
EPS Target	$ 9.76
Restricted Stock [Member] | EPS Target [Member] | $9.26 EPS [Member]
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Vesting Percentage (in hundredths)	33.00%
EPS Target	$ 9.26
Restricted Stock [Member] | EPS Target [Member] | Below $9.26 EPS [Member]
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Vesting Percentage (in hundredths)	0.00%
EPS Target	$ 9.26
Restricted Stock [Member] | Trailing Four Quarter EPS Target [Member] | $13.00 [Member]
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Vesting Percentage (in hundredths)	25.00%
EPS Target	$ 13.00
Restricted Stock [Member] | Trailing Four Quarter EPS Target [Member] | $14.50 [Member]
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Vesting Percentage (in hundredths)	25.00%
EPS Target	$ 14.50
Restricted Stock [Member] | Trailing Four Quarter EPS Target [Member] | $16.00 [Member]
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Vesting Percentage (in hundredths)	25.00%
EPS Target	$ 16.00
Restricted Stock [Member] | Trailing Four Quarter EPS Target [Member] | $18.00 [Member]
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Vesting Percentage (in hundredths)	25.00%
EPS Target	$ 18.00
Equity Securities [Member]
Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Compensation related to stock option and restricted stock plans	$ 1,132,077	$ 553,526
Performance Shares [Member]
Compensation Cost Not yet Recognized [Abstract]
Weighted average period for recognition	2 years 1 month 13 days
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Weighted average period for recognition	2 years 1 month 13 days
Maximum [Member] | Stock Options Plans [Member]
Stock Option Plans [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	10 years
Vesting period	5 years
Minimum [Member] | Stock Options Plans [Member]
Stock Option Plans [Abstract]
Vesting period	3 years
Expense Reversal [Member] | Restricted Stock [Member]
Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Pension and Other Postretirement Benefit Expense		$ 187,862