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Summary of Significant Accounting Policies - Contract Balances (Details) - USD ($)	Jun. 30, 2023	Dec. 31, 2022
Accounts Receivable
Accounts receivable - contracts with customers	$ 5,835,000	$ 4,353,000
Accounts receivable - ASC 842	15,503,000	10,653,000
Total Accounts Receivable	21,338,000	15,006,000
Less: Allowance for doubtful accounts	(466,000)	(338,000)
Total Accounts Receivable, net	20,872,000	14,668,000
Deferred income	$ 0	$ 37,000

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