CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash flows from operating activities:
Net income (loss)	$ 31	$ (4,569)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	587	520
Gain on sale of fixed assets	(5,672)
Stock-based compensation	1,356	1,077
Interest receivable	(70)
Bad debt provision	221
Changes in assets and liabilities:
Accounts receivable	(122)	(849)
Unbilled receivables	(669)	(1,044)
Prepaid expenses and other current assets	(776)	(163)
Accounts payable	706	71
Accrued expenses	(220)	525
Deferred revenue	67	(786)
Net cash used in operating activities	(4,561)	(5,218)
Cash flows from investing activities:
Purchases of property and equipment	(144)	(21)
Proceeds from sale of fixed assets	8,547
Purchases of marketable securities	(18,556)
Investment in note receivable	(2,500)
Net cash used in investing activities	(12,653)	(21)
Cash flows from financing activities:
Proceeds from issuance of common stock	96	25
Payments made for taxes of employees who surrendered shares related to unrestricted stock	(24)	(54)
Repurchase of common stock	(164)
Net cash used in financing activities	(92)	(29)
Decrease in cash and cash equivalents	(17,306)	(5,268)
Cash and cash equivalents, beginning of period	29,963	38,565
Cash and cash equivalents, end of period	$ 12,657	$ 33,297