Segment Information - Segment Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	$ 43,416	$ 76,141
Product
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	32,133	64,021
Software
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	$ 11,283	$ 12,120

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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+ Details