Nature of Operations and Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Thousands	Apr. 28, 2022	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Jan. 01, 2021
Subsequent Event [Line Items]
Assets		$ 126,859	$ 169,175
Cash and cash equivalents		55,361	104,831	$ 100,717
Liabilities		137,079	136,728
Convertible note payable - related party		77,083	84,148
Notes payable		18,862
Other long-term debt		5,982
Accumulated deficit		(462,318)	(416,527)
Operating lease right-of-use asset, net		4,989	$ 3,468		$ 3,662
Present value of minimum lease payments		$ 5,842			$ 4,465
Subsequent event | Standby Equity Purchase Agreement
Subsequent Event [Line Items]
Common stock standby equity purchase agreement	$ 200,000
Agreement term	2 years
Share price as percentage of market price	97.00%
Maximum borrowing capacity under agreement	$ 50,000
Sale of stock, percentage of ownership after transaction	9.99%
Sale of stock ownership threshold after exchange cap percent	19.99%
Sale of stock, price per share (in dollars per share)	$ 2.15