Nature of Business and Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Nature of Business and Significant Accounting Policies [Abstract]

Inventories

Inventories consisted of the following as of December 31:

(Dollars in thousands)	2022			2021
Finished Goods	$	993		$	1,527
Work in Process		204			276
Raw Materials		1,609			1,281
Inventory Reserves		(145	)		(241	)
Total	$	2,661		$	2,843

Estimated Useful Lives

Depreciation expense has been calculated using the following estimated useful lives:

Production Equipment	3-7 years
Office Furniture and Fixtures	3-5 years
Computer Software and Equipment	3-4 years
Loaners and demo equipment	1-5 years
Leasehold improvements	3-5 years

Potential Shares of Common Stock not Included in Diluted Net Loss Per Share

The following table sets forth the potential shares of common stock that are not included in the calculation of diluted net loss per share because to do so would be anti-dilutive as of the end of each year presented:

	December 31,
	2022		2021
Stock options		10,485		7,481
Warrants to purchase common stock		679,244		16,299
Series F convertible preferred stock		5,080		50,800
Series I convertible preferred stock		10,493		—
Total		705,302		74,580

Reconciles Reported Net Loss with Reported Net Loss Per Share

The following table reconciles reported net loss with reported net loss per share for the years ended December 31:

(in thousands, except per share amounts)	2022			2021
Net loss	$	(14,525	)	$	(19,545	)
Deemed dividend to preferred stockholders (see Note 4)		—			(75	)
Net loss after deemed dividend		(14,525	)		(19,620	)
Weighted average shares outstanding		174			69
Basic and diluted loss per share	$	(83.55	)	$	(285.36	)