Supplemental Balance Sheet Information

12 Months Ended

Dec. 31, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

5. Supplemental Balance Sheet Information

Property and Equipment

Property and equipment consists of the following (dollar amounts in thousands)


	Estimated Useful	December 31,			December 31,
	Life (Years)	2022			2021
Office and computer equipment	3	$	757		$	749
Software	3		783			783
Laboratory equipment	5		5,570			5,507
Furniture	5-7		197			197
Manufacturing equipment	5		1,454			1,445
Manufacturing tooling and molds	0.5-5		494			478
T2-owned instruments and components	5		4,052			5,327
Leased T2-owned instruments	5		1,014			886
Leasehold improvements	Lesser of useful life or remaining lease term		3,784			3,768
Construction in progress	n/a		685			512
			18,790			19,652
Less accumulated depreciation and amortization			(14,257	)		(14,977	)
Property and equipment, net			4,533		$	4,675

Construction in progress includes $0.8 million and $1.4 million of T2-owned instrument raw materials and work-in-process at December 31, 2022 and 2021, respectively. Depreciation expense, a component of cost of product revenue, from instruments under the T2-owned reagent rental pool was $0.1 million and $0.2 million for the year ended December 31, 2022 and 2021, respectively. Depreciation expense for T2-owned instruments used for internal research and development and clinical studies is recorded as a component of research and development expense. Depreciation and amortization expense of $1.0 million and $1.3 million was charged to operations for the years ended December 31, 2022 and 2021, respectively.

Accrued Expenses

Accrued expenses consist of the following (in thousands):


	December 31,		December 31,
	2022		2021
Accrued payroll and compensation	$	2,930	$	3,687
Accrued clinical trial and development expenses		1,097		1,250
Accrued professional services		1,626		384
Accrued interest		1,009		974
Other accrued expenses		607		869
Total accrued expenses and other current liabilities	$	7,269	$	7,164

Accrued professional services includes a $1.0 million estimated liability related to the Billerica, Massachusetts lease (Note 12).