Revenue Recognition (Details 1)	6 Months Ended
	Jun. 30, 2023 USD ($)
Revenue Recognition
Deferred Revenue, Beginning	$ 2,427,000
Reclassification Of Beginning Deferred Revenue To Revenue, As A Result Of Performance Obligations Satisfied	2,066,000
Cash Received In Advance And Not Recognized As Revenue	793,000
Deferred Revenue, ending	$ 1,154,000