Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:
Net loss	$ (2,828)	$ (3,353)
Adjustments to reconcile net loss to cash (used in) provided by operating activities:
Depreciation and amortization	1,104	1,267
Provision for doubtful accounts	150
Stock-based compensation expense	253	543
Loss on exchange of warrants		723
Change in fair value of derivative liabilities	334	(5)
Non-cash interest expense	257
Deferred income taxes	274
Changes in operating assets and liabilities:
Accounts receivable	(1,071)	(98)
Long term receivable		6
Note receivable		50
Prepaid expenses and other	256	(359)
Other non-current assets		(10)
Accounts payable and accrued liabilities	551	2,253
Deferred revenue	(7)	40
Net cash (used in) provided by operating activities	(727)	1,057
Cash flows from investing activities:
Capital expenditures	(940)	(635)
Net cash used in investing activities	(940)	(635)
Cash flows from financing activities:
Proceeds from the exercise of options		1
Payment of term loan	(1,875)
Payment of financing related costs	(41)	(94)
Proceeds from (payment of) revolving credit facility, net	2,225	(958)
Net cash provided by (used in) financing activities	309	(1,051)
Net (decrease) increase in cash	(1,358)	(629)
Cash, beginning of the period	5,069	3,696
Cash, end of the period	3,711	3,067
Supplemental cash flow information:
Interest paid	202	118
Income taxes paid