CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities:
Net loss	$ (24,579,000)	$ (122,545,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	161,000	117,000
Stock-based compensation	2,935,000	5,235,000
Amortization of right-of-use asset	336,000	342,000
Impairment of right-of-use asset	772,000	0
Gain on remeasurement of operating lease liability and right-of-use-asset	(642,000)	0
Impairment of in-process research and development	5,990,000	0
In-process research and development	0	80,538,000
Loss on disposal of fixed assets	280,000	13,000
Gain on lease termination	(85,000)	0
Gain on warrant liabilities	(10,795,000)	0
Loss on non-controlling investment	941,000	0
Transaction costs - shares to Financial Advisor	0	5,765,000
Loss on sale of NTN assets	0	9,648,000
Gain on forgiveness of PPP loan	0	(310,000)
Changes in operating assets and liabilities:
Other receivables	(262,000)	(659,000)
Prepaid expenses and other current assets	(187,000)	(850,000)
Other non-current assets	(646,000)	0
Accounts payable and accrued expenses	2,034,000	(485,000)
Due to related party	2,956,000	0
Operating lease liability	(340,000)	(322,000)
Other liabilities	155,000	25,000
Net cash used in operating activities	(20,976,000)	(23,488,000)
Cash flows from investing activities:
Purchase of property and equipment	(297,000)	(154,000)
Proceeds from the sale of fixed assets	250,000	0
Purchase of NTN, net of cash acquired	0	147,000
Purchase of Novellus, net of common stock issued and cash acquired	0	(22,854,000)
Proceeds from the sale of NTN assets, net of cash disposed	0	119,000
Net cash used in investing activities	(47,000)	(22,742,000)
Cash flows from financing activities:
Proceeds from issuance of common stock and warrants in connection with private offerings	19,706,000	0
Expenses paid in connection with private offering	(110,000)	0
Issuance of common stock from exercise of pre-funded warrants	7,000	0
Payroll tax remitted on net share settlement of equity awards	(5,000)	0
Principal payments on finance leases	(2,000)	0
Dividends paid to Series A preferred shareholders	(16,000)	(8,000)
Cash paid for fractional shares in connection with reverse stock split	(1,000)	0
Net proceeds of common stock issued to Lincoln Park	0	52,025,000
Proceeds from sale of members' equity	0	10,500,000
Proceeds from the exercise of stock options	0	10,000
Repayment of NTN's PPP loan	0	(532,000)
Principal payments on notes payable	0	(410,000)
Net cash provided by financing activities	19,579,000	61,585,000
Net (decrease) increase in cash, cash equivalents and restricted cash	(1,444,000)	15,355,000
Cash, cash equivalents and restricted cash at beginning of period	16,985,000	1,630,000
Cash, cash equivalents and restricted cash at end of period	15,541,000	16,985,000
Cash paid during the period for:
Interest	30,000	225,000
Income taxes	15,000	1,000
Supplemental disclosure of non-cash investing and financing activities:
Conversion of Warrant Liability to Equity	867,000	0
Initial measurement of ROU assets and operating lease liabilities	1,706,000	866,000
Unpaid fees incurred in connection with private offering	208,000	0
Initial measurement of finance lease liability	10,000	0
Issuance of common stock for Series A preferred stock dividend	0	8,000
Issuance of common stock for business combination	0	8,178,000
Issuance of common Stock for Novellus acquisition	0	58,684,000
Preferred shares issued in connection with reverse merger	0	1,000
Reconciliation of cash, cash equivalents and restricted cash at end of period:
Cash and cash equivalents	11,446,000	16,985,000
Restricted Cash	4,095,000	0
Total Cash, cash equivalents and restricted cash at end of period	$ 15,541,000	$ 16,985,000