Summary of Significant Accounting Policies (Details) - Summary of the allowance for uncollectible accounts - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance at beginning of year	$ 743,000	$ 1,797,000
Provisions	123,000	(97,000)
Write-offs	(206,000)	(957,000)
Balance at end of year	$ 660,000	$ 743,000