Shareholders' Equity - Classification Other Accumulated Comprehensive Loss (Detail) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2018	Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Minimum Pension Liability Adjustment, Beginning balance	$ (327)	$ (420)
Minimum Pension Liability Adjustment, Current period change	150	93
Minimum Pension Liability Adjustment, Ending balance	(177)	(327)
Accumulated Other Comprehensive Income (Loss), Beginning balance	(327)	(420)
Accumulated Other Comprehensive Income (Loss), Current period change	150	93
Accumulated Other Comprehensive Income (Loss), Ending balance	$ (177)	$ (327)

Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan.

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