Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Allowance for doubtful accounts

December 31	2020		2019
Beginning balance	$	65,000	$	22,000
Bad debt provision		70,000		47,000
Accounts written-off		-		(4,000	)
Ending balance	$	135,000	$	65,000

Inventories

December 31	2020		2019
Raw materials	$	32,000	$	47,000
Work-in-process		2,000		16,000
Finished goods		51,000		259,000
	$	85,000	$	322,000

Estimated useful lives

Production tooling, machinery and equipment	1 - 6 years
Office furniture and fixtures	1 - 3 years
Computer equipment and software	3 - 5 years

Selling arrangement

	2020			2019
Gross cost	$	4,000,000		$	4,000,000
Accumulated amortization		(4,000,000	)		(3,683,000	)
Net carrying amount	$	-		$	317,000

Asset impairment

As of December 31, 2019
Property and Equipment, net:
Balance prior to impairment	$	2,563,000
Impairment charge		(2,014,000	)
Ending balance	$	549,000

Weighted average common shares outstanding

Year ended December 31	2020		2019
Denominator for basic net loss per share - weighted average shares		1,734,000		1,706,000
Effect of dilutive securities:
Stock options, restricted stock units and restricted stock awards		-		-
Denominator for diluted net loss per share - weighted average shares		1,734,000		1,706,000