Leases - Additional Information (Detail) - USD ($)	Jun. 30, 2020	Jul. 01, 2019	Jun. 30, 2019
Lessee Lease Description [Line Items]
Operating lease liabilities	$ 972,000
Operating lease ROU assets	970,000		$ 0
Impact on retained earnings	$ (82,000)		$ 1,058,000
Accounting Standards Codification ("ASC") 842 [Member]
Lessee Lease Description [Line Items]
Operating lease liabilities		$ 1,423,000
Operating lease ROU assets		1,423,000
Revision of Prior Period, Accounting Standards Update, Adjustment [Member] | Accounting Standards Codification ("ASC") 842 [Member]
Lessee Lease Description [Line Items]
Impact on retained earnings		$ 0