Accrued Expenses and Other Liabilities - Other Non-Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020
Other non-current liabilities
Uncertain tax positions	$ 2,045	$ 2,027
Asset retirement obligations	935	920
Other	161	160
Total other non-current liabilities	$ 3,141	$ 3,107

Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 20
-Section 50
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Amount recognized for uncertainty in income taxes classified as noncurrent.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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Amount of expenses incurred but not yet paid classified as other, due after one year or the normal operating cycle, if longer.

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Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.

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