CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 33,941	$ 45,511
Accounts receivable, net	45,032	46,430
Inventory, net	72,389	61,897
Prepaid expenses and other current assets	7,516	6,147
Total current assets	158,878	159,985
Property, plant and equipment, net	49,927	50,714
Goodwill	121,814	121,814
Intangible assets, net	17,247	22,758
Other assets, net	30,729	28,254
Total assets	378,595	383,525
Current liabilities:
Current maturities under capital lease obligation	1,083	973
Accounts payable	22,316	15,367
Accrued expenses	18,505	15,673
Accrued payroll liabilities	9,990	12,068
Total current liabilities	51,894	44,081
Convertible senior notes	38,584	36,894
Capital lease obligation, net of current maturities	34,104	34,933
Deferred income taxes, net	5,017	5,017
Other liabilities	301	1,032
Total liabilities	129,900	121,957
Commitments and contingencies
Stockholders’ equity:
Common stock, $0.001 par value, 750,000,000 shares authorized; 43,343,567 and 42,291,352 shares issued and 43,327,602 and 42,282,741 shares outstanding, respectively	43	42
Additional paid-in capital	487,791	474,512
Accumulated deficit	(239,478)	(211,081)
Accumulated other comprehensive loss	650	(1,771)
Treasury stock, at cost, 15,965 and 8,611 shares, respectively	(311)	(134)
Total stockholders’ equity	248,695	261,568
Total liabilities and stockholders’ equity	$ 378,595	$ 383,525