Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 25,741	$ 28,677
Short-term investments	45,149	51,732
Accounts receivable, net	67,039	60,137
Inventory	45,950	42,110
Prepaid expenses and other current assets	11,308	6,118
Total current assets	195,187	188,774
Property and equipment, net	15,414	20,166
Right-of-use lease assets	3,469	5,438
Other assets	6,707	8,128
Total assets	220,777	222,506
Current liabilities:
Accounts payable	10,188	3,240
Accrued clinical and manufacturing liabilities	22,859	22,291
Accrued payroll and employee liabilities	8,531	9,224
Other accrued liabilities	40,717	41,855
Current lease liabilities	3,249	3,075
Total current liabilities	85,544	79,685
Non-current lease liabilities	522	2,800
Non-current notes payable, net	24,828	24,263
Non-current convertible notes payable, net	149,647	149,490
Other non-current liabilities	241	241
Total liabilities	260,782	256,479
Stockholders' deficit:
Common stock	1,517	1,503
Additional paid-in capital	1,881,695	1,870,525
Accumulated other comprehensive income	40	13
Accumulated deficit	(1,923,257)	(1,906,014)
Total stockholders' deficit	(40,005)	(33,973)
Total liabilities and stockholders' deficit	$ 220,777	$ 222,506