Condensed Consolidated Balance Sheets - USD ($)	Mar. 31, 2024	Dec. 31, 2023
Current Assets
Cash and cash equivalents	$ 18,261,000	$ 23,177,000
Tax credit receivable	1,772,000	1,812,000
Prepaid expenses and other current assets	1,623,000	2,414,000
Total Current Assets	21,656,000	27,403,000
Non-Current Assets
Property and equipment, net	375,000	422,000
Restricted cash	99,000	102,000
Right of use asset	1,634,000	1,759,000
In-process research and development	19,316,000	19,755,000
Goodwill	5,573,000	5,700,000
Deposits and other assets	77,000	78,000
Total Assets	48,730,000	55,219,000
Current Liabilities:
Accounts payable	571,000	770,000
Accrued expenses	3,327,000	2,995,000
Accrued employee benefits	665,000	1,517,000
Deferred research and development tax credit-current portion	886,000	906,000
Loans payable-current	62,000	63,000
Operating lease liability-current portion	498,000	487,000
Total Current Liabilities	6,009,000	6,738,000
Non-current Liabilities
Non-current contingent consideration	6,476,000	6,274,000
Loan Payable - non-current	159,000	162,000
Non-current deferred research and development tax credit	664,000	906,000
Non-current operating lease liability	1,299,000	1,442,000
Total Liabilities	14,607,000	15,522,000
Commitments and Contingencies (Note 13)
Stockholders' Equity:
Common stock, $0.001 par value; 350,000,000 shares authorized, 17,868,282 issued and 17,148,049 outstanding at March 31, 2024 and 17,868,282 issued and 17,148,049 outstanding at December 31, 2023	18,000	18,000
Additional paid-in capital	346,679,000	346,519,000
Treasury stock at cost, 720,233 shares at March 31, 2024 and at December 31, 2023	(288,000)	(288,000)
Accumulated other comprehensive (loss) income	(537,000)	32,000
Accumulated deficit	(314,483,000)	(309,318,000)
Total Stockholders' Equity	31,389,000	36,963,000
Total Liabilities and Stockholders' Equity	48,730,000	55,219,000
Series C convertible preferred stock
Temporary Equity
Convertible preferred stock	2,006,000	2,006,000
Series D convertible preferred stock
Temporary Equity
Convertible preferred stock	$ 728,000	$ 728,000