CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 21,572	$ 2,304
Short-term investments	69,552	0
Accounts receivable, net	7,549	5,398
Inventory	4,097	2,258
Prepaid expenses and other current assets	1,290	534
Restricted cash	80	60
Total current assets	104,140	10,554
Property and equipment, net	2,154	1,950
Intangible asset, net	10,218	13,475
Deposits and other assets	149	42
Total assets	116,661	26,021
Current liabilities:
Accounts payable	3,626	3,298
Accrued liabilities	7,793	6,462
Line of credit		1,850
Long-term debt, current portion	8,931	8,532
Deferred rent	12	45
Total current liabilities	20,362	20,187
Long-term debt, less current portion	765	8,968
Stock warrant liability	105	379
Other liabilities	238	12
Total liabilities	$ 21,470	29,546
Convertible preferred stock (see Note 8)		$ 157,379
Stockholders' equity (deficit):
Preferred stock, $0.001 par value; 5,000 shares and no shares authorized at December 31, 2015 and 2014; no shares issued and outstanding at December 31, 2015 and 2014
Common stock, $0.001 par value; 150,000 shares and 77,000 authorized at December 31, 2015 and 2014, respectively; 32,209 and 2,470 shares issued and 32,181 and 2,442 shares outstanding at December 31, 2015 and 2014, respectively	$ 32	$ 6
Additional paid-in capital	291,853	8,155
Accumulated other comprehensive income	51	44
Accumulated deficit	(196,613)	(159,372)
Total stockholders' (deficit) equity before treasury stock	95,323	(151,167)
Less treasury stock (28 shares as of December 31, 2015 and 2014)	(132)	(132)
Total stockholders' equity (deficit)	95,191	(151,299)
Noncontrolling interest		(9,605)
Total equity (deficit)	95,191	(160,904)
Total liabilities, convertible preferred stock and equity (deficit)	$ 116,661	$ 26,021