CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 27,454	$ 5,946
Restricted cash	206	206
Accounts receivable, net of allowance for doubtful accounts of $2,749 and $2,399, as of March 31, 2021 and December 31, 2020, respectively	9,891	11,257
Inventories	20,936	23,396
Prepaid expenses and other receivables	2,678	3,486
Total current assets	61,165	44,291
Property, plant and equipment, net	15,949	16,131
Intangible assets, net	19,473	22,964
Goodwill	508	501
Other assets	3,683	3,901
Total assets	100,778	87,788
Current liabilities:
Accounts payable	4,734	7,972
Accrued expenses	8,763	14,713
Capital lease obligation, current	435	436
Total current liabilities	13,932	23,121
Revolver, net of debt issuance costs (face of $25,000 and $25,000 as of March 31, 2021 and December 31, 2020, respectively)	25,000	25,000
2023 Term Loans, net of debt issuance costs (face of $83,515 and $102,905 as of March 31, 2021 and December 31, 2020, respectively )	88,870	99,490
Derivative liabilities	0	7,507
Deferred tax liability	192	190
Other long term liabilities	4,807	4,914
Total liabilities	133,098	197,940
Commitments and Contingencies
Mezzanine equity:
Redeemable, convertible preferred stock, Series D preferred stock, $0.01 par value, 1,000,000 shares authorized; 85.412 shares issued and outstanding as of March 31, 2021	15,374	0
Stockholders’ deficit:
Common stock, $0.01 par value, 100,000,000 shares authorized; 89,428,513 and 21,754,223 shares issued and outstanding as of March 31, 2021 and December 31, 2020, respectively	1,198	220
Additional paid-in capital	195,297	135,218
Accumulated deficit	(241,343)	(243,496)
Accumulated other comprehensive loss	(2,846)	(2,094)
Total stockholders’ deficit	(47,694)	(110,152)
Total liabilities, mezzanine equity and stockholders' deficit	100,778	87,788
2023 Series D Convertible Notes
Current liabilities:
Senior Convertible Notes	0	31,922
2023 Series D Convertible Notes
Current liabilities:
Senior Convertible Notes	$ 297	$ 5,796