Leases - Schedule of Right-of-Use Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Lessee Lease Description [Line Items]
Right-of-use assets	$ 2,940		$ 963
Lease liabilities	2,979	$ 2,979	1,003
Del Mar, CA [Member]
Lessee Lease Description [Line Items]
Right-of-use assets	546		613
Lease liabilities	575		641
Hayward F G H K Industrial L L C
Lessee Lease Description [Line Items]
Right-of-use assets	2,191		99
Lease liabilities	2,199		109
Edwardsville, IL [Member]
Lessee Lease Description [Line Items]
Right-of-use assets	203		251
Lease liabilities	$ 205		$ 253