Stock Based Compensation (Tables)

12 Months Ended

Dec. 31, 2023

Share-Based Payment Arrangement [Abstract]

Schedule of Weighted Average for Options Granted

The following table presents the weighted-average assumptions used for options granted under the 2021 Plan:

	2022
Option term (years)		4.95
Volatility		110.21	%
Unvested forfeiture rate		0.00	%
Risk-free interest rate		3.93	%
Dividend yield		0.00	%
Weighted-average fair value per option granted	$	14.75

Schedule of Share Based Compensation Expense

Total share-based compensation expense, related to the Company’s share-based awards, recognized for the years ended December 31, was included within the representative group comprised as follows:

	2023		2022
(Dollars in thousands)
Cost of cryptocurrency mining revenue, exclusive of depreciation	$	300	$	67
Cost of data hosting revenue, exclusive of depreciation		24		-
General and administrative expenses, exclusive of depreciation and amortization		3,988		3,785
Share-based compensation expense	$	4,312	$	3,852

Summary of Stock Option Activity

Presented below is a summary of the Company’s stock option activity for the Plans for the years ended December 31:

	2023		2022
Shares under option, beginning		52,393		39,662
Granted		-		21,564
Exercised		-		(7,097	)
Forfeited		-		(430	)
Expired/canceled		-		(1,306	)
Shares under option, ending		52,393		52,393
Options exercisable		45,276		38,158

The weighted average exercise price for the Company’s stock option activity for the Plans is as follows for each of the years ended December 31:

	2023		2022
Shares under option, beginning	$	102.86	$	136.00
Granted	$	-	$	23.75
Exercised	$	-	$	21.50
Forfeited	$	-	$	259.75
Expired/canceled	$	-	$	196.00
Shares under option, ending	$	102.86	$	102.86
Options exercisable, ending	$	92.53	$	78.25

Summary of Option Outstanding and Exercisable

The following table summarizes information for options outstanding and exercisable for the Plans as of December 31, 2023:

Outstanding							Exercisable
			Weighted Average		Weighted				Weighted Average		Weighted
			Remaining		Average				Remaining		Average
Exercise Price Range	Number		Contractual Life		Exercise Price		Number		Contractual Life		Exercise Price
$17.50-$30.00		25,409		3.88	$	23.72		25,159		3.85	$	23.78
$30.01-188.00		26,384		4.64	$	175.11		19,717		4.39	$	176.50
$188.01-277.50		600		7.23	$	277.50		400		7.23	$	277.50
		52,393		4.30	$	102.86		45,276		4.12	$	92.53

Summary of Non Vested Restricted Stock

Non-vested restricted stock activity is as follows for the year ended December 31:

	2023			2022
Non-vested restricted stock balance, beginning January 1		33,221			16,213
Non-vested restricted stock granted		20,000			29,017
Vested restricted stock		—			—
Non-vested restricted stock exercised		(35,336	)		(7,730	)
Non-vested restricted stock forfeited/expired		(6,382	)		(4,279	)
Non-vested restricted stock balance, ending December 31		11,503			33,221

Summary of Weighted Average Fair Value Price Restricted Stock Activity

The weighted average fair value price for the Company’s restricted stock activity for the Plans is as follows for each of the years ended December 31:

	2023		2022
Restricted stock, beginning	$	208.83	$	282.11
Granted	$	7.47	$	180.55
Exercised	$	107.84	$	245.22
Forfeited/ expired	$	112.55	$	235.54
Restricted stock, ending	$	222.39	$	208.83

Summary of Common Stock Warrant Activity

The following is a summary of common stock warrant activity during the year ended December 31, 2023.

	Number of Warrant Shares			Weighted Average Exercise Price ($)
Balance, December 31, 2022		396,107		$	57.25
Granted		834,022			9.55
Exercised		(81,726	)		0.01
Forfeited/ Expired		(134	)		0.01
Balance, December 31, 2023		1,148,269		$	24.21

The following is a summary of common stock warrant activity during the year ended December 31, 2022.

	Number of Warrant Shares			Weighted Average Exercise Price ($)
Balance, December 31, 2021		87,758		$	346.25
Granted		359,491			57.75
Exercised		(3,780	)		206.00
Forfeited/ Expired		(47,362	)		237.50
Balance, December 31, 2022		396,107		$	57.25