Notes Payable (Tables)

12 Months Ended

Dec. 31, 2021

Debt Disclosure [Abstract]

Schedule of long-term debt, net of original issue discount and unamortized debt issuance costs

Our long-term debt, net of original issue discount and unamortized debt issuance costs, as of December 31, 2021 and 2020 was as follows:

(in thousands, except interest rate data)	Interest Rate			2021			2020
Notes payable:
Maryland Department of Housing & Community Development		8.00	%	$	614		$	1,080
Advance Cecil, Inc.		8.00	%		122			216
Paycheck Protection Program		1.00	%		—			647
Avenue Venture Opportunities Fund, L.P.		9.85	%		20,000			—
Other		0.00	%		—			6
					20,736			1,949
Less unamortized debt issuance costs and original issue discounts					(1,654	)		—
Less convertible notes payable, net of unamortized debt discount and issuance costs (see Note 11)					(4,598	)		—
Total notes payable				$	14,484		$	1,949

ScheduleOfFuturePaymentsNetOfUnamortizedDebtDiscounts

is a schedule of future payments, net of unamortized debt discounts, if Avenue does not convert up to $5.0 million of the loan into Common Stock between May 21, 2022 through May 21, 2024:

(in thousands)	As of December 31, 2021
2022	$	—
2023		6,667
2024		13,333
2025		—
2026		—
Thereafter		—
Subtotal of future principal payments		20,000
Less unamortized debt discount associated with issuance date warrant fair value    and financing costs		(1,654	)
Total	$	18,346