| Incentive and Non-Statutory Stock Option Plan - Summary of Unvested Stock Grants Awarded as Compensation (Details) | 3 Months Ended | 
|---|---|
| Sep. 30, 2019  $ / shares  shares | |
| Share-based Payment Arrangement [Abstract] | |
| Number of shares, Unvested beginning balance | shares | 81,515 | 
| Number of shares, Granted | shares | 117,895 | 
| Number of shares, Vested | shares | (60,367) | 
| Number of shares, Forfeited / Cancelled | shares | (991) | 
| Number of shares, Unvested ending balance | shares | 138,052 | 
| Weighted Average Grant Date Fair Value, Unvested beginning balance | $ / shares | $ 5.88 | 
| Weighted Average Grant Date Fair Value, Granted | $ / shares | 5.66 | 
| Weighted Average Grant Date Fair Value, Vested | $ / shares | 5.68 | 
| Weighted Average Grant Date Fair Value, Forefieted / Cancelled | $ / shares | 6.05 | 
| Weighted Average Grant Date Fair Value, Unvested ending balance | $ / shares | $ 5.78 | 
| X | ||||||||||
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- Definition Gross number of share options (or share units) granted during the period nonvested. No definition available. 
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| X | ||||||||||
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- References No definition available. 
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| X | ||||||||||
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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| X | ||||||||||
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- Definition Number of non-vested options outstanding. No definition available. 
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| X | ||||||||||
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- Definition Number of non-vested options forfeited. No definition available. 
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| X | ||||||||||
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- Definition Weighted average grant-date fair value of non-vested options forfeited. No definition available. 
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| X | ||||||||||
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- Definition Weighted average grant-date fair value of non-vested options outstanding. No definition available. 
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| X | ||||||||||
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- Definition Number of options vested. No definition available. 
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| X | ||||||||||
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- Definition Weighted average grant-date fair value of options vested. No definition available. 
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