Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities
Net loss	$ (1,736)	$ (9,344)
Adjustments to reconcile net loss to net cash from operating activities:
Depreciation and amortization	0	1
Stock based compensation from issuance of options	1,066	1,609
Change in assets and liabilities:
Accounts receivable	2,533	10,048
Prepaid and other current assets	(254)	(4)
Accounts payable and accrued liabilities	349	221
Accrued salaries and wages	(466)	(277)
Royalty payable	(684)	0
Deferred revenue	(455)	(54)
License fees	(1,800)	0
Net cash provided by (used in) operating activities	(1,447)	2,200
Cash flows provided by financing activities
Proceeds from issuance of warrants	0	24
Proceeds from issuance of common shares	0	1,006
Proceeds from stock option exercises	601	0
Net cash provided by financing activities	601	1,030
Net increase (decrease) in cash and cash equivalents	(846)	3,230
Cash and cash equivalents, beginning of period	24,614	8,116
Cash and cash equivalents, end of period	23,768	11,346
Non-Cash Transactions
Offset of deferred financing costs against APIC	0	365
Deferred financing costs in accounts payable	$ 0	$ 155