The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Goodwill and Intangible Assets (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Goodwill, impairment loss					$ 0
Amortization of intangibles	$ 711,000	$ 402,000	$ 1,597,000	$ 1,169,000
Goodwill	89,984,000		89,984,000		$ 74,135,000	$ 65,614,000
Adjustment, due to Sale	2,500,000		2,463,000
Other Intangible Assets [Member]
Amortization of intangibles	$ 711,000	$ 402,000	$ 1,600,000	$ 1,200,000
Customer Relationships [Member]
Intangible asset, useful life			8 years 7 months 6 days
Trade Names [Member]
Intangible asset, useful life			5 years