Basis of Presentation and Significant Accounting Policies - Impact of Recently Issued Accounting Pronouncements - Additional Information (Details) - USD ($)	Jun. 30, 2020	Oct. 01, 2019
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
ROU assets	$ 5,191,000	$ 195,000
Lease liabilities	5,215,000	$ 163,000
SiC/LED Building
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Additional ROU assets upon commencement of SiC/LED building lease	5,000,000.0
Additional lease Liabilities upon commencement of SiC/LED building lease	$ 5,000,000.0