Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities
Net income	$ 7,469	$ 4,112
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation	609	274
Amortization of deferred financing costs	36	54
Amortization of right-of-use assets	177
Share based compensation expense	3,836	494
Provision for doubtful accounts	139
Loss on change in fair value of warrant liabilities		433
Changes in:
Accounts receivable	(3,437)	(3,363)
Inventories	(3,073)	(1,233)
Prepaid expenses, deposits and other assets	(2,908)	(1,294)
Accounts payable	2,473	315
Payroll-related accruals, accrued expenses and other liabilities	3,635	(471)
Lease liabilities	(190)
Net cash provided by (used in) operating activities	8,766	(679)
Cash flows from investing activities
Purchase of property and equipment	(1,265)	(609)
Purchase of short-term investments	(21,246)
Net cash used in investing activities	(22,511)	(609)
Cash flows from financing activities
Proceeds from notes payable		10,000
Proceeds from issuance of common stock under employee stock purchase plan	1,882
Proceeds from exercise of stock options	381	22
Payment of taxes related to vested restricted stock units	(49)
Net cash provided by financing activities	2,214	10,022
Effect of foreign exchange rate on cash and cash equivalents	(183)
Net (decrease) increase in cash	(11,714)	8,734
Cash, cash equivalents and restricted cash beginning of period	114,617	24,027
Cash, cash equivalents and restricted cash end of period	102,903	32,761
Supplemental disclosures of cash flow information:
Cash paid for income taxes	118	22
Cash paid for interest	$ 37	236
Noncash investing and financing:
Accrual of deferred interest obligation associated with debt		$ 100