Financial Risk Management - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Foreign Currency Fair Value Hedge Derivative [Line Items]
Cash and cash equivalents	$ 11,780	$ 10,537
Credit risk, financial instrument maximum exposure	19
Credit risk, uninsured cash and cash equivalents	11,185
Liquidity Risk [Member]
Foreign Currency Fair Value Hedge Derivative [Line Items]
Liquidity risk maximum exposure	4,282
Foreign exchange risk [Member]
Foreign Currency Fair Value Hedge Derivative [Line Items]
Financial risk, accounts payable and accrued liabilities	$ 57
Maximum exposure of financial currency due to exchange rates, description	Foreign exchange risk is the risk that the fair value or future cash flows of a financial instrument will fluctuate because of changes in foreign exchange rates. If foreign exchange rates were to fluctuate within +/-10% of the closing rate at year-end, the maximum exposure is $14.
Foreign exchange risk maximum exposure	$ 14
Cash and cash equivalents	$ 11,780
Maximum exposure of interest rate risk, description	The Company’s cash balance currently earns interest at standard bank rates. If interest rates were to fluctuate within +/-10% of the closing rate at year end the impact of the Company’s interest-bearing accounts will not be significant due to the current low market interest rates.