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Stock-Based Compensation (Narrative) (Details) - USD ($) |  |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 07, 2018 | Mar. 01, 2018 | Aug. 23, 2017 | Sep. 30, 2018 | May 31, 2017 | Aug. 31, 2016 | Mar. 31, 2019 | Mar. 31, 2018 | Mar. 31, 2019 | Mar. 31, 2018 | Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of stock options awarded |  |  |  |  |  |  |  |  |  | 600,000 |  |  |
Stock-based compensation charge (reversal), net |  |  |  |  |  |  | $ 487,000 | $ 575,000 | [1] | $ 1,672,000 | $ 2,010,000 | [1] |
Number of shares, forfeitures |  |  |  |  |  |  |  |  |  | 278,386 | 37,333 |  |
Deferred tax asset related to stock-based compensation |  |  |  |  |  |  | 800,000 |  |  | $ 800,000 |  |  | $ 700,000
Valuation allowances |  |  |  |  |  |  | $ 800,000 |  |  | $ 800,000 |  |  | $ 700,000
August 2017 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Performance target, per share |  |  |  |  |  |  |  |  |  | $ 23.00 |  |  |
Percentage of increase target price |  |  |  |  |  |  |  |  |  | 35.00% |  |  |
Closing price, per share |  |  | $ 9.38 |  |  |  |  |  |  |  |  |  |
Stock Options [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Exercisable stock options |  |  |  |  |  |  | 0 | 0 |  | 0 | 105,982 |  |
Unrecognized compensation cost |  |  |  |  |  |  | $ 1,000,000 |  |  | $ 1,000,000 |  |  |
Unrecognized compensation cost, expected recognition period, years |  |  |  |  |  |  |  |  |  | 3 years |  |  |
Expected volatility |  |  |  |  |  |  |  |  |  | 44.00% |  |  |
Expected life (in years) |  |  |  |  |  |  |  |  |  | 3 years |  |  |
Risk-free rate |  |  |  |  |  |  |  |  |  | 2.75% |  |  |
Expected volatility calculation term |  |  |  |  |  |  |  |  |  | 750 days |  |  |
Options exercise price range, lower limit |  |  |  |  |  |  |  |  |  | $ 6.20 |  |  |
Options exercise price range, upper limit |  |  |  |  |  |  |  |  |  | 13.16 |  |  |
Stock Options [Member] | Executive Officers [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Strike price |  |  |  |  |  |  |  |  |  | $ 24.46 |  |  |
Stock Options [Member] | Executive Officers And Employees [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of stock options awarded |  |  |  |  |  |  | 0 | 0 |  | 600,000 | 0 |  |
Number of shares, forfeitures |  |  |  |  |  |  |  |  |  | 278,386 |  |  |
Stock Options [Member] | Executive Officers And Employees [Member] | August 2008 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of stock options awarded |  |  |  |  |  |  |  |  |  | 200,000 |  |  |
Stock Options [Member] | Employees [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares, forfeitures |  |  |  |  |  |  |  |  |  |  | 37,333 |  |
Number of shares forfeited |  |  |  |  |  |  | 78,386 | 0 |  |  |  |  |
Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of stock options awarded |  |  |  |  |  |  |  |  |  |  | 611,411 |  |
Fair value of restricted stock vested |  |  |  |  |  |  |  |  |  | $ 500,000 | $ 500,000 |  |
Unrecognized compensation cost |  |  |  |  |  |  | $ 2,000,000 |  |  | $ 2,000,000 |  |  |
Unrecognized compensation cost, expected recognition period, years |  |  |  |  |  |  |  |  |  | 2 years |  |  |
Forfeitures, Number of Shares of Restricted Stock |  |  |  |  |  |  |  |  |  | (18,000) | (125,961) |  |
Vested number of shares of restricted stock |  |  |  |  |  |  |  |  |  | 64,003 |  |  |
Restricted Stock [Member] | September 2018 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Expected volatility |  |  |  | 37.40% |  |  |  |  |  |  |  |  |
Expected life (in years) |  |  |  | 3 years |  |  |  |  |  |  |  |  |
Future dividends |  |  |  | $ 0 |  |  |  |  |  |  |  |  |
Expected volatility calculation term |  |  |  | 30 days |  |  |  |  |  |  |  |  |
Restricted Stock [Member] | September 2018 [Member] | Below $15 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting percentage |  |  |  | 0.00% |  |  |  |  |  |  |  |  |
Restricted Stock [Member] | September 2018 [Member] | At or above $15 and below $19 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting percentage |  |  |  | 33.00% |  |  |  |  |  |  |  |  |
Restricted Stock [Member] | September 2018 [Member] | At or above $19 and below $23 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting percentage |  |  |  | 66.00% |  |  |  |  |  |  |  |  |
Restricted Stock [Member] | September 2018 [Member] | At or above $23 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting percentage |  |  |  | 100.00% |  |  |  |  |  |  |  |  |
Restricted Stock [Member] | August 2017 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Expected volatility |  |  |  |  |  |  |  |  |  | 44.00% |  |  |
Expected life (in years) |  |  |  |  |  |  |  |  |  | 3 years |  |  |
Future dividends |  |  |  |  |  |  |  |  |  | $ 0 |  |  |
Expected volatility calculation term |  |  |  |  |  |  |  |  |  | 30 days |  |  |
Strike price |  |  |  |  |  |  |  |  |  | $ 0 |  |  |
Restricted Stock [Member] | August 2017 [Member] | Below $15 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting percentage |  |  |  |  |  |  |  |  |  | 0.00% |  |  |
Restricted Stock [Member] | August 2017 [Member] | At or above $15 and below $19 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting percentage |  |  |  |  |  |  |  |  |  | 33.00% |  |  |
Restricted Stock [Member] | August 2017 [Member] | At or above $19 and below $23 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting percentage |  |  |  |  |  |  |  |  |  | 66.00% |  |  |
Restricted Stock [Member] | August 2017 [Member] | At or above $23 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Performance target, per share |  |  |  |  |  |  |  |  |  | $ 23.00 |  |  |
Vesting percentage |  |  |  |  |  |  |  |  |  |  | 100.00% |  |
Restricted Stock [Member] | August 2016 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of stock options awarded |  |  |  |  | 150,000 |  |  |  |  |  |  |  |
Restricted Stock [Member] | Executive Officers [Member] | September 2018 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of stock options awarded |  |  |  |  |  |  |  |  |  | 148,000 |  |  |
Performance target, per share | $ 23.00 |  |  |  |  |  |  |  |  |  |  |  |
Percentage of increase target price | 55.00% |  |  |  |  |  |  |  |  |  |  |  |
Closing price, per share | $ 6.20 |  |  |  |  |  |  |  |  |  |  |  |
Restricted Stock [Member] | Executive Officers [Member] | August 2017 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of stock options awarded |  |  |  |  |  |  |  |  |  | 210,000 |  |  |
Restricted Stock [Member] | Executive Officers [Member] | August 2016 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of stock options awarded |  |  |  |  |  | 350,000 |  |  |  |  |  |  |
Restricted Stock [Member] | Non-Employee Directors [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Vested number of shares of restricted stock |  |  |  |  |  |  |  |  |  |  | 56,250 |  |
Restricted Stock [Member] | Non-Employee Directors [Member] | August 2017 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of stock options awarded |  |  |  |  |  |  |  |  |  | 52,594 |  |  |
Restricted Stock [Member] | Executive Officers And Employees [Member] | August 2017 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of stock options awarded |  |  |  |  |  |  |  |  |  | 326,000 |  |  |
Restricted Stock [Member] | Former Chief Executive Officer [Member] | August 2016 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of stock options awarded |  |  |  |  | 200,000 |  |  |  |  |  |  |  |
Restricted Stock [Member] | Chief Financial Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of stock options awarded |  | 22,817 |  |  |  |  |  |  |  |  |  |  |
Restricted Stock [Member] | Chief Financial Officer [Member] | Vested on March 1, 2019 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of stock options awarded |  | 11,409 |  |  |  |  |  |  |  |  |  |  |
Restricted Stock [Member] | One-Third Shares Vest 2019 Fundamental EPS [Member] | August 2016 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Fundamental EPS, to be achieved |  |  |  |  |  |  |  |  |  | $ 2.60 |  |  |
Restricted Stock [Member] | Two-Thirds Shares Vest 2019 Fundamental EPS [Member] | August 2016 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Fundamental EPS, to be achieved |  |  |  |  |  |  |  |  |  | 2.80 |  |  |
Restricted Stock [Member] | All Shares Vest 2019 Fundamental EPS [Member] | August 2016 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Fundamental EPS, to be achieved |  |  |  |  |  |  |  |  |  | $ 3.00 |  |  |
Restricted Stock [Member] | Full Time Basis [Member] | Executive Officers And Employees [Member] | August 2017 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting date |  |  |  |  |  |  |  |  |  | Aug. 23, 2020 |  |  |
Restricted Stock [Member] | Recipient Is A Director [Member] | Non-Employee Directors [Member] | August 2017 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting date |  |  |  |  |  |  |  |  |  | Aug. 23, 2018 |  |  |
Restricted Stock [Member] | Restricted Stock with Time-Based Vesting Conditions [Member] | Employees [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares forfeited |  |  |  |  |  |  | 18,000 |  |  | 18,000 |  |  |
Restricted Stock [Member] | Market or Performance Conditions upon Termination [Member] | Employees [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares forfeited |  |  |  |  |  |  |  |  |  |  | 30,635 |  |
2019 Fundamental EPS [Member] | August 2016 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Fundamental EPS, linear interpolation |  |  |  |  |  |  |  |  |  | $ 2.80 |  |  |
Minimum [Member] | Restricted Stock [Member] | September 2018 [Member] | At or above $15 and below $19 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Performance target, per share |  |  |  | $ 15.00 |  |  |  |  |  |  |  |  |
Minimum [Member] | Restricted Stock [Member] | September 2018 [Member] | At or above $19 and below $23 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Performance target, per share |  |  |  | 19.00 |  |  |  |  |  |  |  |  |
Minimum [Member] | Restricted Stock [Member] | September 2018 [Member] | At or above $23 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Performance target, per share |  |  |  | 23.00 |  |  |  |  |  |  |  |  |
Minimum [Member] | Restricted Stock [Member] | August 2017 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Risk-free rate |  |  |  |  |  |  |  |  |  | 1.275% |  |  |
Minimum [Member] | Restricted Stock [Member] | August 2017 [Member] | At or above $15 and below $19 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Performance target, per share |  |  |  |  |  |  |  |  |  | $ 15.00 |  |  |
Minimum [Member] | Restricted Stock [Member] | August 2017 [Member] | At or above $19 and below $23 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Performance target, per share |  |  |  |  |  |  |  |  |  | 19.00 |  |  |
Minimum [Member] | 2019 Fundamental EPS [Member] | August 2016 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Fundamental EPS |  |  |  |  |  |  |  |  |  | $ 2.60 |  |  |
Maximum [Member] | Restricted Stock [Member] | September 2018 [Member] | Below $15 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Performance target, per share |  |  |  | 15.00 |  |  |  |  |  |  |  |  |
Maximum [Member] | Restricted Stock [Member] | September 2018 [Member] | At or above $15 and below $19 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Performance target, per share |  |  |  | 19.00 |  |  |  |  |  |  |  |  |
Maximum [Member] | Restricted Stock [Member] | September 2018 [Member] | At or above $19 and below $23 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Performance target, per share |  |  |  | $ 23.00 |  |  |  |  |  |  |  |  |
Maximum [Member] | Restricted Stock [Member] | August 2017 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Risk-free rate |  |  |  |  |  |  |  |  |  | 1.657% |  |  |
Maximum [Member] | Restricted Stock [Member] | August 2017 [Member] | Below $15 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Performance target, per share |  |  |  |  |  |  |  |  |  | $ 15.00 |  |  |
Maximum [Member] | Restricted Stock [Member] | August 2017 [Member] | At or above $15 and below $19 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Performance target, per share |  |  |  |  |  |  |  |  |  | 19.00 |  |  |
Maximum [Member] | Restricted Stock [Member] | August 2017 [Member] | At or above $19 and below $23 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Performance target, per share |  |  |  |  |  |  |  |  |  | 23.00 |  |  |
Maximum [Member] | 2019 Fundamental EPS [Member] | August 2016 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Fundamental EPS |  |  |  |  |  |  |  |  |  | $ 3.00 |  |  |
[1] | Refer to Note 1.

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- Definition Financial Performance Target, Per Share + References No definition available. + Details
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Balance Type: | na
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- Definition Percentage Of Increase Target Price + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Calculation Term + References No definition available. + Details
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