Significant Accounting Policies deferred revenue (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Sep. 30, 2020	Jun. 30, 2020	Sep. 30, 2019	Jun. 30, 2019
Revenue Recognition and Deferred Revenue [Abstract]
Deferred Revenue	$ 571	$ 636	$ 571	$ 636	$ 468	$ 516	$ 426	$ 427
Deferred Revenue, Additions	346	452	527	687
Deferred Revenue, Revenue Recognized	$ 243	$ 242	$ 472	$ 478

Amount of deferred revenue recognized for transactions arising during the current reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an Entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

No definition available.

Name:	us-gaap_DeferredRevenueAdditions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration