Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 2,377	$ 2,229
Accounts receivable, net of allowances for doubtful accounts and other adjustments of $59 (2017) and $197 (2016)	4,711	4,962
Income tax receivable	1	1
Inventories, net of reserves for excess and obsolete inventory of $147 (2017) and $148 (2016)	13	12
Prepaid expenses and other current assets	751	713
Total current assets	7,853	7,917
Equipment and improvements, net	1,542	1,811
Other assets	146	149
Intangible assets, net	616	745
Goodwill	3,685	3,686
Total assets	13,842	14,308
Current liabilities:
Accounts payable	1,296	1,907
Accrued liabilities	3,212	3,503
Related-party notes payable, short-term	2,000
Deferred revenue	568	98
Total current liabilities	7,076	5,508
Non-current liabilities:
Related-party notes payable, net of discount & issuance costs of $842 (2017) and $1,033 (2016)	1,158	967
Notes payable, net of discount & issuance costs of $842 (2017) and $1,033 (2016)	1,158	967
Warrant liability	1,063	1,210
Deferred rent and other long-term liabilities	2,738	2,971
Deferred tax liability, net	181	181
Total non-current liabilities	6,298	6,296
Commitments and contingencies
Stockholders' equity:
Preferred stock, par value $0.001 per share; 5,000,000 shares authorized; none issued or outstanding
Common stock, par value $0.001 per share; 100,000,000 shares authorized; 14,297,018 and 12,297,954 shares issued and outstanding at June 30, 2017 and December 31, 2016, respectively	14	12
Additional paid-in capital	230,657	227,889
Accumulated comprehensive deficit	(230,203)	(225,397)
Total stockholders’ equity	468	2,504
Total liabilities and stockholders' equity	$ 13,842	$ 14,308