Summary of Business and Significant Accounting Policies - Stock-Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Stock-based Compensation Expense
Stock-based compensation expense	$ 460	$ 499	$ 1,393	$ 1,197
Cost of revenue
Stock-based Compensation Expense
Stock-based compensation expense	62	97	148	241
Research and development
Stock-based Compensation Expense
Stock-based compensation expense	171	163	549	387
Sales and marketing expense
Stock-based Compensation Expense
Stock-based compensation expense	144	81	422	181
General and administrative expense
Stock-based Compensation Expense
Stock-based compensation expense	83	158	274	388
Nonemployee
Stock-based Compensation Expense
Stock-based compensation expense	14	95	57	143
Employee Stock Purchase Plan (ESPP)
Stock-based Compensation Expense
Stock-based compensation expense	$ 87	$ 128	$ 211	$ 161