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Fair Value Measurements (Details 3) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Fair Value Measurements
Beginning balance	$ 746,000	$ 175,000
Additions	746,000
Cash payments	0	(54,000)
Adjustment	0	(121,000)
Ending balance	$ 746,000	$ 746,000

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- Definition

Amount of addition (reduction) to the amount at which an asset could be incurred (settled) in a current transaction between willing parties.

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