Stockholders Equity (Tables)

12 Months Ended

Dec. 31, 2023

Stockholders Equity

Schedule of Weighted average assumptions

	2023			2022
Employee Stock Purchase Plan:
Expected life (years)		1.0			1.0
Expected volatility		95	%		169	%
Dividend yield		0	%		0	%
Risk-free interest rate		4.7	%		0.4	%

Schedule of Stock option activity

	Plan Shares Available for Grant			Plan Options Outstanding			Weighted Average Exercise Price Per Share		Aggregate Intrinsic Value
Balance at January 1, 2022		97,648			19,122		$	13.23
Restricted stock units and awards granted		(6,248	)		—
Stock options exercised		—			(1,300	)		8.26	$	2,422
Cancelled or forfeited options		1,462			(3,736	)		11.41
Balance at December 31, 2022		92,862			14,086			14.17
Cancelled or forfeited options		12,623			(12,623	)		14.02
Balance at December 31, 2023		105,485			1,463			15.54

Schedule of Stock options outstanding

		Options Outstanding							Options Exercisable
Exercise Prices		Number Outstanding		Weighted Average Remaining Contractual Life			Weighted Average Exercise Price Per Share		Number Exercisable		Weighted Average Exercise Price Per Share
$	15.54		1,463		0.39	years	$	15.54		1,463	$	15.54

Schedule of Restricted stock and restricted stock unit activity

	Number of Shares			Weighted average grant date fair value
Unvested shares at January 1, 2022		8,531		$	10.01
Granted		6,248			9.60
Vested		(8,910	)		10.25
Unvested shares at December 31, 2022		5,869		$	9.21
Granted		—
Vested		(5,869	)		7.66
Unvested shares at December 31, 2023		—			—