Condensed Consolidated Statements Of Cash Flows (Unaudited) $ in Thousands	9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)
Operating activities:
Net loss	$ (8,482)	$ (10,908)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	2,309	2,515
Stock-based compensation	1,090	1,035
Gain (Loss) on Disposition of Property Plant Equipment	0	(4)
Accretion of debt discount and issuance costs	364	0
Change in fair value of warrant liability	52	0
Deferred income taxes	(112)	(148)
Changes in operating assets and liabilities:
Receivables	1,204	4,892
Income taxes receivable / payable	142	265
Prepaid expenses and other assets	1,070	(727)
Accounts payable and other accrued liabilities	563	(884)
Accrued compensation	(405)	(1,823)
Deferred revenue	151	(1,857)
Deferred rent	(132)	(193)
Other non-current liabilities	0	(226)
Net Cash Provided by (Used in) Operating Activities, Continuing Operations	(2,186)	(8,055)
Cash Provided by (Used in) Operating Activities, Discontinued Operations	0	(50)
Net cash used in operating activities	(2,186)	(8,105)
Investing activities:
Sales and maturities of marketable securities	0	6,250
Purchases of property and equipment	(22)	(52)
Net cash provided by (used in) investing activities	(22)	6,198
Financing activities:
Principal payments on financing obligations	(383)	(386)
Payment for term loan issuance costs	(125)	0
Common stock repurchases to settle employee withholding liability	(11)	(18)
Net cash used in financing activities	(519)	(404)
Effect of exchange rate changes on cash	101	(120)
Net decrease in cash and cash equivalents	(2,626)	(2,431)
Cash and cash equivalents, end of period	7,738
Supplemental disclosures of net cash paid (received) during the period:
Income taxes, net	(176)	43
Interest, net	$ 627	$ 49