Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 19,101	$ 29,905
Accounts receivable, net of allowance for doubtful accounts of $629 and $658, respectively	5,664	9,232
Inventory, net	10,979	8,865
Prepaid expenses and other current assets	3,033	2,998
Total current assets	38,777	51,000
Restricted cash	608	1,016
Property, equipment and right-of-use assets	5,565	6,612
Goodwill	5,290	5,290
Intangible assets, net of accumulated amortization of $12,507 and $11,648, respectively	6,907	7,831
Other assets	2,946	2,833
Total assets	60,093	74,582
Current liabilities:
Accounts payable	7,177	9,902
Accrued expenses	6,602	8,438
Current portion of long-term debt	5,355	34,449
Total current liabilities	19,134	52,789
Long-term debt	32,180	0
Convertible debt	18,710	18,554
Long-term liabilities	648	1,116
Total liabilities	70,672	72,459
Commitments and contingencies
Stockholders' (deficit) equity:
Common stock; $0.001 par value; 100,000,000 shares authorized; 21,196,387 and 20,951,963 shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively	21	21
Additional paid-in capital	252,038	250,634
Accumulated other comprehensive income	4,033	1,630
Accumulated deficit	(266,671)	(250,162)
Total stockholders' (deficit) equity	(10,579)	2,123
Total liabilities and stockholders' (deficit) equity	$ 60,093	$ 74,582