CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net income (loss)	$ 63,260,000	$ (82,035,000)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	2,146,000	2,061,000
Charges (credits) to provision for doubtful accounts	542,000	445,000
Inventory charge	73,000	502,000
Debt financing fees	16,971,000	2,681,000
Share-based compensation	4,281,000	5,467,000
Gain on sale of business	(143,384,000)
Loss on extinguishment of debt	8,380,000
Other	(15,000)	434,000
Changes in operating assets and liabilities:
Accounts receivable	(10,603,000)	(1,544,000)
Inventory	1,399,000	(83,000)
Prepaid and other current assets	1,373,000	365,000
Accounts payable	(5,591,000)	(6,503,000)
Accrued expenses and other current liabilities	16,913,000	12,940,000
Other non-current liabilities	(675,000)	358,000
Total adjustments	(108,190,000)	17,123,000
Net cash used in operating activities	(44,930,000)	(64,912,000)
Cash flows from investing activities:
Proceeds from sale of business, net of transaction costs	142,634,000
Payment of patent related costs	(267,000)	(423,000)
Purchase of fixed assets	(20,000)	(104,000)
Net cash provided by (used in) investing activities	142,347,000	(527,000)
Cash flows from financing activities:
Proceeds from sale of common stock, net of costs		151,062,000
Proceeds from exercise of options and warrants		299,000
Proceeds from sale of common stock related to employee stock purchase plan	14,000	134,000
Repayments of debt	(125,000,000)	(50,000,000)
Payment of debt financing fees		(5,118,000)
Net cash (used in) provided by financing activities	(124,986,000)	96,377,000
Net (decrease) increase in cash and restricted cash	(27,569,000)	30,938,000
Cash and restricted cash, beginning of period	65,122,000	80,486,000
Cash and restricted cash, end of period	37,553,000	111,424,000
Supplemental disclosure of cash flow information:
Interest paid	9,137,000	$ 14,284,000
Supplemental disclosure of noncash financing activities:
Paid in kind ("PIK") debt financing fees with corresponding increase in debt	$ 15,780,000