CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash	$ 8,880	$ 14,581
Accounts receivable (net of allowance for doubtful accounts of $97 and $68, respectively)	7,871	10,919
Inventory	3,607	1,379
Other current assets	741	464
Total current assets	21,099	27,343
Property and equipment, net	4,215	4,049
Intangible assets, net	2,708	2,917
Total assets	28,022	34,309
Current liabilities:
Accounts payable	5,467	7,588
Accrued expenses	3,398	3,603
Revolving and term loan credit agreement, net of deferred costs of $433	5,566	0
Warrant liabilities	658	757
Short-term deferred rent	232	118
Other	39	42
Total current liabilities	15,360	12,108
Long-term deferred rent	1,227	0
Long term debt	42	71
Total liabilities	16,629	12,179
COMMITMENTS AND CONTINGENCIES (Note 13)
Shareholders' equity:
Common stock, no par value; shares authorized — 75,000; shares issued and outstanding — 22,745 and 23,789, respectively	310,208	307,766
Treasury stock — 1,250 shares	(3,150)	(3,150)
Warrants	190	0
Accumulated deficit	337,394	324,025
Total shareholders’ equity	11,393	22,130
Total liabilities and shareholders’ equity	28,022	34,309
Series A Non-voting Convertible Preferred Stock
Shareholders' equity:
Series B-2 voting convertible preferred stock, no par value: shares authorized and reserved — 39, shares issued and outstanding — 12	3,150	3,150
Series B Non-voting Convertible Preferred Stock
Shareholders' equity:
Series B-2 voting convertible preferred stock, no par value: shares authorized and reserved — 39, shares issued and outstanding — 12	$ 38,389	$ 38,389