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Business Combinations - Additional Information (Details) - USD ($)		3 Months Ended
	Jan. 07, 2021	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Business Acquisition [Line Items]
Goodwill		$ 10,845,000		$ 3,700,000
Sales		17,377,000	$ 11,216,000
Net income (loss)		237,000	$ (1,202,000)
NimbeLink
Business Acquisition [Line Items]
Upfront cash purchase price	$ 15,991,000
Cash purchase price prior to customary adjustments	15,000,000.0
Other customary adjustments	1,000,000.0
Deferred payments	728,000
Purchase price allocation, inventory step-up	400,000
Goodwill	7,145,000
Sales		3,200,000
Net income (loss)		$ 200,000
NimbeLink | Maximum
Business Acquisition [Line Items]
Business combination, consideration transferred, contingent considerations	$ 8,000,000.0

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