CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities:
Net income (loss)	$ 1,001	$ (4,796)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	958	1,650
Gain on forgiveness of Paycheck Protection Program note	(2,946)
Accretion of interest on contractual payment obligation	33	87
Amortization of debt issuance costs	88	146
Stock-based compensation expense	1,455	1,391
Impairment of right-of-use operating lease assets	281	1,199
Decrease in fair value of earnout liability		(261)
Changes in operating assets and liabilities:
Accounts receivable	1,259	405
Inventories	(1,612)	(2,608)
Prepaid expenses and other assets	(1,785)	(555)
Accounts payable	(2,303)	699
Contractual payment obligation liability	(542)	(410)
Deferred revenue	255	(41)
Accrued expenses and other liabilities	996	(1,176)
Net cash used in operating activities	(2,862)	(4,270)
Cash flows from investing activities:
Capital expenditures	(1,672)	(614)
Net cash used in investing activities	(1,672)	(614)
Cash flows from financing activities:
Proceeds from the sale of common stock, net of issuance costs	37,715
Taxes paid related to net share settlement of restricted stock units	(586)	(408)
Proceeds from exercise of stock options	136
Net cash provided by financing activities	29,861	8,755
Effect of exchange rates on cash and cash equivalents	(366)	(139)
Net increase in cash and cash equivalents	24,961	3,732
Cash and cash equivalents at beginning of period	11,409	9,383
Cash and cash equivalents at end of period	36,370	13,115
Supplemental Disclosures of Cash Flow Information:
Interest paid	289	515
Taxes paid, net	54	17
Non-cash investing and financing activities:
Common stock issued to settle vendor liability		304
Common stock issued to settle earnout liability		489
Fair value of warrants issued in connection with financial liabilities		332
April 21 Funds Promissory Notes
Cash flows from financing activities:
Repayments under revolving loan facility, East West Bank term loan and April 21 Funds promissory note, net of issuance costs	(2,800)
Proceeds from promissory notes		4,000
Paycheck Protection Program Note
Cash flows from financing activities:
Proceeds from promissory notes		2,915
Revolving Loan Facility
Cash flows from financing activities:
Borrowings under revolving loan facility, net of issuance costs	3,964	4,345
Repayments under revolving loan facility, East West Bank term loan and April 21 Funds promissory note, net of issuance costs	$ (8,568)	(1,347)
East West Bank Term Loan
Cash flows from financing activities:
Repayments under revolving loan facility, East West Bank term loan and April 21 Funds promissory note, net of issuance costs		$ (750)