CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Current Assets:
Cash and cash equivalents	$ 25,631	$ 13,343
Short term investments		3,000
Accounts receivable, net of allowance of $2,579 and $204, respectively	2,096	367
Inventories	1,703	2,031
Other current assets	235	264
Total current assets	29,665	19,005
Property and equipment, net	5,334	5,831
Intangible assets, net	17,420	18,167
Other assets	3,471	2,227
Total assets	55,890	45,230
Current Liabilities:
Accounts payable	1,333	1,257
Accrued expenses	2,430	2,715
Less current portion	3,257	1,653
Total current liabilities	7,020	5,625
Long-Term Liabilities:
Long-term debt, net of current portion	31,198	23,121
Earnout liability	356	756
Deferred gain on leaseback	967	1,383
Deferred rent	1,172	1,189
Warrant liabilities	3,934	1,789
Total long-term liabilities	37,627	28,238
Redeemable Preferred Stock
Redeemable preferred stock	104,249	90,149
Stockholders' Deficit:
Common stock, $0.001 par value, 35,000,000 authorized; 887,414 issued and outstanding as of June 30, 2015 and 938,859 and 882,954 issued and outstanding at December 31, 2014, respectively	1	1
Additional paid-in capital	5,069	4,831
Accumulated deficit	(98,076)	(83,614)
Total stockholders' deficit	(93,006)	(78,782)
Total liabilities, redeemable preferred stock and stockholders' deficit	55,890	45,230
Series A preferred stock
Redeemable Preferred Stock
Redeemable preferred stock	1,068	1,068
Series B preferred stock
Redeemable Preferred Stock
Redeemable preferred stock	14,730	14,559
Series B-1 preferred stock
Redeemable Preferred Stock
Redeemable preferred stock	33,803	32,391
Series C preferred stock
Redeemable Preferred Stock
Redeemable preferred stock	$ 54,648	$ 42,131