CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities:
Net loss	$ (4,220)	$ (2,567)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	298	446
Stock-based compensation	738	808
Interest on note receivable	(62)	(38)
Bad debt recovery	(33)
Non-cash lease expense	195
Changes in assets and liabilities:
Accounts receivable	(699)	(432)
Unbilled receivables	141	(343)
Prepaid expenses and other current assets	(107)	(379)
Tax receivable	(136)
Accounts payable	(44)	273
Accrued expenses	(396)	(119)
Deferred revenue	626	(207)
Net cash used in operating activities	(3,699)	(2,558)
Cash flows from investing activities:
Purchases of property and equipment	(16)	(11)
Purchase of marketable securities	(7,917)
Sale of marketable securities	3,500
Investment in note receivable		(2,500)
Net cash used in investing activities	(4,433)	(2,511)
Cash flows from financing activities:
Proceeds from issuance of common stock	52	93
Payments made for taxes of employees who surrendered shares related to unrestricted stock	(15)
Repurchase of common stock	(341)	(3)
Net cash (used in) provided by financing activities	(304)	90
Decrease in cash and cash equivalents	(8,436)	(4,979)
Cash and cash equivalents, beginning of period	11,749	29,963
Cash and cash equivalents, end of period	3,313	$ 24,984
Supplemental disclosure: Cash paid for income taxes	$ 136