CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities
Net loss	$ (2,835)	$ (35,198)
Adjustments to reconcile net loss to net cash provided by operating activities:
Provision for doubtful accounts	1,793	601
Depreciation and amortization	8,992	14,471
Payment-in-kind interest	3,370	624
Amortization of debt discount	2,093	393
Write-off and amortization of debt issuance costs	1,053	1,103
Share-based compensation expense	1,506	1,872
Gain on disposal of property and equipment	(101)	(72)
Loss on extinguishment of debt	0	13,205
Change in fair value of convertible senior notes	(2,757)	2,992
Change in fair value of preferred stock derivative liability	624	0
Changes in operating assets and liabilities:
Accounts receivable	(50,640)	(79,111)
Inventory	(324)	(11,418)
Prepaid expenses and other assets	11,514	(2,731)
Accounts payable	33,505	79,360
Accrued expenses	4,370	30,343
Reserve for sales returns and allowances	5,852	8,706
Income taxes payable	(1,485)	7
Other liabilities	(584)	962
Total adjustments	18,781	61,307
Net cash provided by operating activities	15,946	26,109
Cash flows from investing activities
Purchases of property and equipment	(6,171)	(7,624)
Proceeds from sale of property and equipment	51	12
Net cash used in investing activities	(6,120)	(7,612)
Cash flows from financing activities
Retirement of convertible senior notes	(1,905)	0
Repayment of credit facility borrowings	0	(7,500)
Debt issuance costs	0	(4,957)
Term loan prepayment penalty	0	(393)
Proceeds from loan under the Paycheck Protection Program	6,206	0
Net proceeds from credit facility borrowings	0	5,000
Net proceeds from issuance of long term debt	0	27,356
Repayment of term loan facility	0	(20,000)
Repurchase of common stock for employee tax withholding	(174)	(273)
Net cash provided by (used in) financing activities	4,127	(767)
Net increase in cash, cash equivalents and restricted cash	13,953	17,730
Effect of foreign currency translation	(419)	(45)
Cash, cash equivalents and restricted cash, beginning of period	66,286	58,205
Cash, cash equivalents and restricted cash, end of period	79,820	75,890
Cash paid during the period for:
Income taxes	2,846	152
Interest	$ 12,344	$ 5,956