Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 2,068	$ 5,396
Income tax receivable	73	73
Prepaid expenses and other current assets	34	46
Investments in U.S. Treasury Bills	2,421
Total current assets	4,596	5,515
Other assets	8	8
Total assets	4,604	5,523
Current liabilities
Accounts payable and accrued expenses	57	93
Total current liabilities	57	93
Total liabilities	57	93
Stockholders’ equity
Preferred stock, par value $0.01 per share, authorized 10,000,000 shares; none issued
Common stock, par value $0.01 per share, authorized 30,000,000 shares; Issued 21,343,680 and 21,025,748 as of September 30, 2022 and December 31, 2021, respectively; Outstanding 20,335,711 and 20,210,529 at September 30, 2022 and December 31, 2021, respectively, and 160,000 and 215,632 shares issuable as of September 30, 2022 and December 31, 2021, respectively	213	210
Additional paid-in capital	34,375	34,316
Accumulated deficit	(28,298)	(27,397)
Accumulated other comprehensive income	4
Treasury stock, at cost (1,007,969 shares at September 30, 2022 and 815,219 at December 31, 2021)	(1,747)	(1,699)
Total stockholders' equity	4,547	5,430
Total liabilities and stockholders’ equity	$ 4,604	$ 5,523