Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities
Net loss	$ (158)	$ (10,740)
Adjustments to reconcile net loss to net cash from operating activities:
Depreciation and amortization	5	2
Stock based compensation from issuance of options	1,927	3,141
Issuance of common stock for services	0	782
Change in assets and liabilities:
Accounts receivable	144	8,727
Prepaid and other current assets	(226)	174
Accounts payable and accrued expenses	(59)	(1,685)
Accrued salaries and wages	(205)	(71)
Royalty payable	(63)	0
Deferred revenue	162	348
License fees	(3,600)	0
Net cash provided by (used in) operating activities	(2,073)	678
Cash flows from investing activities
Purchase of property and equipment	(59)	0
Net cash used in investing activities	(59)	0
Cash flows provided by financing activities
Proceeds from issuance of warrants	0	24
Proceeds from issuance of common shares	0	2,532
Finance costs	0	(105)
Proceeds from stock option exercises	1,435	0
Net cash provided by financing activities	1,435	2,451
Net increase (decrease) in cash and cash equivalents	(697)	3,129
Cash and cash equivalents, beginning of period	24,614	8,116
Cash and cash equivalents, end of period	23,917	11,245
Non-Cash Transactions
Offset of deferred financing costs against APIC	0	365
Deferred financing costs in accounts payable	$ 0	$ 50