Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash flows from operating activities:
Net loss	$ (10,712)	$ (9,013)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Stock-based compensation expense	4,147	6,381
Non-cash interest expense	3,778	4,531
Depreciation expense	5,516	4,803
Amortization of intangible assets	685	835
Gain on extinguishment of debt	0	(3,352)
Changes in operating assets and liabilities:
Accounts receivable	(5,191)	(3,801)
Contract asset	(847)	521
Inventory	(497)	2,857
Prepaid expenses and other assets	1,221	491
Accrued interest	(2,473)	48
Accrued payroll	(2,005)	2,507
Accounts payable, accrued expenses and other liabilities	740	(393)
Net cash (used in) provided by operating activities	(5,638)	6,415
Cash flows from investing activities:
Acquisition of IriSys, net of cash required	0	(24,006)
Purchases of property and equipment	(5,615)	(2,765)
Net cash used in investing activities	(5,615)	(26,771)
Cash flows from financing activities:
Proceeds from issuance of common stock, net of costs	(143)	32,103
Payment of debt principal	(2,039)	(10,100)
Payment of financing costs	(83)	(1,362)
Net payments related to vesting of restricted stock units	(122)	(555)
Net cash (used in) provided by financing activities	(2,387)	20,086
Net decrease in cash and cash equivalents	(13,640)	(270)
Cash and cash equivalents, beginning of period	25,217	23,760
Cash and cash equivalents, end of period	11,577	23,490
Supplemental disclosures of cash flow information:
Cash paid for interest	10,081	7,462
Purchases of property, plant and equipment included in accrued expenses and accounts payable	919	158
Deferred financing costs included in accrued expenses and accounts payable	35	0
Assets Reclassified As Held For Sale	2,659	0
Fair Value of Shares Issuable to Former Equityholders of IriSys	0	20,931
Fair value of note issued to former equity holders of IriSys	0	5,240
Issuance of common stock to reduce debt principal and accrued exit fees	0	6,060
Issuance of common stock to settle interest obligations	$ 0	$ 3,211