CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 15,508	$ 9,705
Restricted cash	206	2,892
Accounts receivable, net of allowance for doubtful accounts of $2,208 and $2,636, as of December 31, 2019 and December 31, 2018, respectively	20,374	16,120
Inventories	23,031	16,296
Prepaid expenses and other receivables	2,525	3,373
Total current assets	61,644	48,386
Property, plant and equipment, net	96,349	91,775
Intangible assets, net	44,645	48,375
Goodwill	491	470
Other	3,776	1,886
Total assets	206,905	190,892
Current liabilities:
Accounts payable	6,875	5,933
Accrued expenses	9,285	9,842
Deferred income, current	0	2,426
Convertible 3.75% Senior Notes, net of debt discount and debt issuance costs (face of $15,702 as of December 31, 2018 )	0	14,411
Capital lease obligation, current	446
Total current liabilities	16,606	32,612
Convertible 4.75% Senior Notes, net of debt discount and debt issuance costs (face of $66,090 and $75,090 as of December 31, 2019 and December 31, 2018, respectively)	53,093	56,909
Revolver (face of $25,000 and $15,000 as of December 31, 2019 and December 31, 2018, respectively)	25,000	15,000
Series B Senior Convertible Notes, net of debt discount and debt issuance costs (face of $34,405 as of December 31, 2019)	21,824	0
2023 Term Loan, net of debt issuance costs (face of $88,464 and $70,000 as of December 31, 2019 and December 31, 2018, respectively)	86,452	67,662
Derivative liability	6,776	0
Deferred tax liability	205	215
Other long term liabilities	2,256	73
Total liabilities	212,212	172,471
Commitments and Contingencies
Stockholders’ (deficit)/equity:
Common stock, $0.01 par value, 100,000,000 shares authorized; 53,850,427 and 53,774,221 shares issued and outstanding as of December 31, 2019 and December 31, 2018, respectively	558	557
Additional paid-in capital	117,967	116,864
Accumulated deficit	(121,474)	(96,350)
Accumulated other comprehensive loss, net of taxes	(2,358)	(2,650)
Total stockholders’ (deficit)/equity	(5,307)	18,421
Total liabilities and stockholders’ (deficit)/equity	$ 206,905	$ 190,892