Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 7,143	$ 46,474
Restricted cash	0	3,338
Accounts receivable, net of allowances of $541 and $408, respectively	25,259	26,781
Inventories	37,976	37,402
Prepaid expenses and other	7,978	13,624
Total current assets	78,356	127,619
Property, plant and equipment, net of accumulated depreciation of $26,049 and $26,692, respectively	5,390	8,102
Rental assets, net of accumulated depreciation of $5,484 and $5,392, respectively	4,816	4,575
Intangible assets, net of accumulated amortization of $31,629 and $48,404, respectively	41,383	46,995
Goodwill	21,922	20,336
Right-of-use assets	6,662	7,839
Other assets	488	377
Total assets	159,017	215,843
Current liabilities:
Accounts payable	29,018	48,577
Accrued expenses and other current liabilities	27,945	26,253
Total current liabilities	56,963	74,830
Long-term liabilities:
2025 Notes, net	158,427	157,866
Revolving credit facility, net	6,919	0
Deferred tax liabilities, net	323	852
Other long-term liabilities	6,503	7,149
Total liabilities	229,135	240,697
Commitments and Contingencies
Preferred stock, par value $0.001; 2,000,000 shares authorized:
Series E Preferred stock, par value $0.001; 39,500 shares designated, 25,000 shares issued and outstanding as of December 31, 2022 and 2021, liquidation preference of $1,000 per share (plus any accrued but unpaid dividends)	0	0
Common stock, par value $0.001; 150,000,000 shares authorized, 108,468,150 shares issued and outstanding as of December 31, 2022 and 105,380,533 shares issued and outstanding as of December 31, 2021	108	105
Additional paid-in capital	793,855	770,619
Accumulated other comprehensive loss	(6,329)	(8,531)
Accumulated deficit	(857,752)	(787,047)
Total stockholders’ deficit	(70,118)	(24,854)
Total liabilities and stockholders’ deficit	$ 159,017	$ 215,843