CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (2,093)	$ (2,566)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation and amortization	139	139
Stock-based compensation	1,005	1,038
Bad debt expense	16	13
Change in accrued interest and accretion of discount on short-term investments	(2)	0
Changes in assets and liabilities:
(Increase) in accounts receivable	(133)	(279)
(Increase) decrease in other current assets and long-term assets	(178)	107
(Decrease) in accounts payable and accrued expenses	(22)	(497)
Increase in deferred revenue	412	507
Net cash used in operating activities	(856)	(1,538)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(31)	(156)
Net cash used in investing activities	(31)	(156)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds of insurance financing arrangement	49	0
Withholding taxes paid on RSU vesting	(54)	0
Repayment of insurance financing arrangements	(119)	0
Net cash used in financing activities	(124)	0
Net decrease in cash	(1,011)	(1,694)
CASH, beginning of period	5,196	13,651
CASH, end of period	4,185	11,957
Supplemental disclosures of cash flow information:
Cash paid for interest	2	0
Cash paid for income taxes	$ 87	$ 0