GKCE Acquisition - Narrative (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Jun. 12, 2020	Sep. 30, 2020	Jun. 30, 2020	Sep. 30, 2020	Sep. 30, 2019
Business Acquisition [Line Items]
First working capital payment				$ 43	$ 0
GKCE acquisition
Business Acquisition [Line Items]
Asset acquisition, percentage of shares acquired	98.00%	99.30%		99.30%
Asset acquisition, percentage of shares remaining	0.70%
Fair value of noncontrolling interest	$ 58
Percentage of outstanding shares	100.00%
Consideration allocated to assets acquired and liabilities assumed	$ 2,869
Base purchase consideration	2,000
Payments for asset acquisitions	575
Asset acquisition, transaction costs	1,425
First working capital payment	515
Additional consideration transferred	354
Goodwill	1,265
Tangible and intangible assets acquired	801
Acquisition related costs		$ 69	$ 93
GKCE acquisition | Purchased intangible assets
Business Acquisition [Line Items]
Purchased intangible assets	$ 78