CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities:
Net loss	$ (7,740)	$ (16,453)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	932	1,366
Stock-based compensation expense	7,106	6,358
Provision for transaction losses, returns and refunds	625	549
Amortization of costs to obtain revenue contracts	160	162
Amortization of operating lease right-of-use assets	1,661	1,268
Accretion of discounts and amortization of premiums on short-term investments, net	(1,499)	(1,241)
Other, net	2	(219)
Changes in operating assets and liabilities:
Accounts receivable	(193)	46
Prepaid expenses and other current assets	(1,271)	(449)
Receivables from payment processors	(633)	155
Other assets	(1,181)	(172)
Accounts payable and accrued expenses	(3,601)	1,297
Payables due to sellers	1,611	(838)
Operating lease liabilities	(1,394)	(1,366)
Other current liabilities and other liabilities	(290)	269
Net cash used in operating activities	(5,705)	(9,268)
Cash flows from investing activities:
Maturities of short-term investments	49,177	11,000
Sales of short-term investments	18,667	0
Purchases of short-term investments	(51,507)	(110,411)
Development of internal-use software	(797)	(856)
Purchases of property and equipment	(554)	(25)
Other, net	297	0
Net cash provided by (used in) investing activities	15,283	(100,292)
Cash flows from financing activities:
Proceeds from exercise of stock options	786	35
Payments for repurchase of common stock	(21,877)	0
Payments for taxes related to net share settlement of stock-based compensation awards	(1,973)	0
Net cash (used in) provided by financing activities	(23,064)	35
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	(62)	227
Net decrease in cash, cash equivalents, and restricted cash	(13,548)	(109,298)
Cash, cash equivalents, and restricted cash at beginning of the period	40,975	158,043
Cash, cash equivalents, and restricted cash at end of the period	27,427	48,745
Supplemental disclosure of non-cash activities:
Recording of right of use asset	3,483	0
Recording of lease liability	$ (3,483)	$ 0