Schedule of fair values determined by level 3 inputs are unobservable data (Details) - Fair Value, Recurring [Member] - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 3,464	$ 7,317
Equity securities	10	16
Total	3,474	7,333
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	3,464	7,317
Equity securities	10	16
Total	3,474	7,333
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents
Equity securities
Total
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents
Equity securities
Total