Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (1,468)	$ (4,624)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation and amortization	69	43
Equity compensation	592	4,545
Forgiveness of unsecured promissory note		(10)
Changes in assets and liabilities:
Increase in accounts receivable	(156)	(148)
Increase in other current assets	(49)	(215)
Decrease in accounts payable and accrued expenses	(1,149)	(113)
(Decrease) increase in deferred revenue	(236)	51
Net cash used in operating activities	(2,397)	(471)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(131)	(48)
Net cash used in investing activities	(131)	(48)
CASH FLOWS FROM FINANCING ACTIVITIES:
Return of repayment on unsecured promissory note		10
Net cash provided by financing activities		10
Net decrease in cash	(2,528)	(509)
CASH, beginning of period	13,651	13,121
CASH, end of period	11,123	12,612
Supplemental disclosure of noncash investing and financing activities:
Reclassification of stock option awards		$ 1,411