Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities:
Net loss	$ (12,379)	$ (19,614)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	4,308	2,195
Non-cash interest	3,313	2,510
Loss on extinguishment of debt	6,299
Loss on change in fair value - warrant liabilities	16,758
Stock-based compensation	10,063	487
Tax Receivable Agreement expense	501
Loss on disposal of property and equipment		95
Changes in operating assets and liabilities:
Increase in accounts receivable	(18,451)	(6,059)
Increase in inventories, net	(24,688)	(9,595)
Increase in prepaid inventory and other assets	(2,557)	(520)
Increase in accounts payable	25,132	3,783
Increase in accrued sales returns	1,814	632
Increase in accrued compensation	5,263	594
Increase (decrease) in customer prepayments	(1,264)	4,309
Increase (decrease) in other accrued liabilities	8,803	(474)
Net cash provided by (used in) operating activities	22,915	(21,657)
Cash flows from investing activities:
Purchase of property and equipment	(10,459)	(11,325)
Investment in intangible assets	(320)	(327)
Net cash used in investing activities	(10,779)	(11,652)
Cash flows from financing activities:
Proceeds from the Business Combination		26,344
Proceeds from related-party debt	10,000	24,000
Repurchase of stock options	(97)
Payments to line of credit		(8,000)
Payments for debt issuance costs	(758)	(367)
Principal payments on capital lease obligations	(35)	(29)
Net cash provided by financing activities	9,110	41,948
Net increase in cash	21,246	8,639
Cash and cash equivalents, beginning of the year	12,232	3,593
Cash and cash equivalents, end of the year	33,478	12,232
Supplemental disclosures of cash flow information:
Cash paid during the year for interest	1,869	1,384
Cash paid during the year for income taxes	122
Supplemental schedule of non-cash investing and financing activities:
Property and equipment included in accounts payable	743	463
Assignment of founder shares and sponsor warrants		4,691
Equipment acquired through capital lease	386
Issuance of liability warrants	4,864
Non-cash leasehold improvements	1,938
Tax distribution payable	$ 308