CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net loss	$ (1,279)	$ (1,448)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	225	177
Stock-based compensation	430	197
Interest receivable	(7)
Changes in assets and liabilities:
Accounts receivable	(368)	(587)
Unbilled receivables	(88)	(253)
Prepaid expenses and other current assets	(394)	51
Accounts payable	190	10
Accrued expenses	(650)	(229)
Deferred revenue	(440)	(389)
Net cash used in operating activities	(2,381)	(2,471)
Cash flows from investing activities:
Investment in note receivable	(2,500)
Net cash used in investing activities	(2,500)
Cash flows from financing activities:
Payments made for taxes of employees who surrendered shares related to unrestricted stock		(54)
Net cash used in financing activities		(54)
Decrease in cash and cash equivalents	(4,881)	(2,525)
Cash and cash equivalents, beginning of period	29,963	38,565
Cash and cash equivalents, end of period	$ 25,082	$ 36,040