Tax on Profit on Ordinary Activities - Rate Reconciliation (Details) - GBP (£) £ in Thousands		12 Months Ended
Apr. 01, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Reconciliation of accounting profit multiplied by applicable tax rates [abstract]
Profit on ordinary activities before taxation		£ 24,650	£ 21,700	£ 20,831
Profit on ordinary activities at UK statutory rate		4,684	4,286	4,167
Differences in overseas tax rates		(359)	(219)	(372)
Impact of share based compensation		150	56	100
Utilisation of previously unrecognised tax losses		(2)	(2)	(31)
Other permanent differences		1,030	258	239
Adjustments related to prior periods		(73)	292	7
Tax on unremitted earnings/witholding tax on dividends		185	197	0
Impact of rate change on deferred tax		60	0	15
Total tax		£ 5,675	£ 4,868	£ 4,125
Reconciliation of average effective tax rate and applicable tax rate [abstract]
Applicable tax rate	19.00%	19.00%	19.80%	20.00%
Differences in overseas tax rates		(1.50%)	(1.00%)	(1.80%)
Impact of share based compensation		0.60%	0.20%	0.50%
Utilisation of previously unrecognised tax losses		0.00%	0.00%	(0.10%)
Other permanent differences		4.20%	1.20%	1.10%
Adjustments related to prior periods		(0.30%)	1.30%	0.00%
Tax on unremitted earnings/witholding tax on dividends		0.80%	0.90%	(0.00%)
Impact of rate change on deferred tax		0.20%	0.00%	0.10%
Total		23.00%	22.40%	19.80%

Tax Effect Of Other Permanent Differences

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Tax Effect Of Prior Year Income Taxes

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Tax Effect Of Share Based Payment

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Tax Effect Of Unremitted Earnings And Withholdings On Dividends

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Tax Effect Of Utilising Previously Unrecognised Tax Losses

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Tax Rate Effect Of Other Permanent Differences

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Tax Rate Effect Of Share Based Payment

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Tax Rate Effect Of Unremitted Earnings And Withholdings On Dividends

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Tax Rate Effect Of Utilising Previously Unrecognised Tax Losses

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The amount of profit (loss) for a period before deducting tax expense. [Refer: Profit (loss)]

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The applicable income tax rate.

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The tax expense (income) divided by the accounting profit. [Refer: Accounting profit]

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The aggregate amount included in the determination of profit (loss) for the period in respect of current tax and deferred tax that relate to continuing operations. [Refer: Continuing operations [member]; Current tax expense (income); Deferred tax expense (income)]

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The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to changes in the tax rate. [Refer: Accounting profit]

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The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to foreign tax rates. [Refer: Accounting profit]

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The product of the accounting profit multiplied by the applicable tax rate(s). [Refer: Accounting profit; Applicable tax rate]

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The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from a change in tax rate. [Refer: Average effective tax rate; Applicable tax rate]

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Tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from adjustments for the current tax of prior periods. [Refer: Average effective tax rate; Applicable tax rate; Adjustments for current tax of prior periods]

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The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from the application of foreign tax rates. [Refer: Average effective tax rate; Applicable tax rate]

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