Subsequent Events (Details)	Aug. 05, 2021 USD ($) ft²	Jul. 09, 2021 USD ($)	Feb. 02, 2021 USD ($)
Subsequent events
Maximum offering from universal shelf registration			$ 500,000
Term Of Securities Offered Under Self Registration			3 years
Subsequent events
Subsequent events
Area of building | ft²	139,500
Sale price of land	$ 17,800,000
Maximum offering from universal shelf registration		$ 500,000
Term Of Securities Offered Under Self Registration		3 years