Share-based Payments (Tables)

12 Months Ended

Dec. 31, 2021

Share-Based Payments

Schedule of valuation assumptions for applying the Black-Scholes methodology to the options granted under share-based payments

Risk free interest rate, average	0.84%
Expected option life, average	5 years
Expected price volatility, average	69.74%
Expected dividend yield	0%

Schedule of stock option activity

	Number of Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value
As of December 31, 2019		544,647		$	9.01		4.93	$	—
Granted		337,500			2.50
Expired and canceled		(38,701	)		4.81
Forfeited prior to vesting		—			—
Exercised		—			—
As of December 31, 2020		843,446		$	6.60		4.91	$	—
Granted		50,000			2.30
Expired and canceled		(34,875	)		6.70
Forfeited prior to vesting		(27,500	)		2.50
Exercised		—			—
As of December 31, 2021		831,071		$	6.47		4.10	$	—
Vested and Expected to Vest at December 31, 2020		843,446		$	6.60		4.91	$	—
Vested at December 31, 2020		505,946		$	9.33		4.21	$	—
Vested and Expected to Vest at December 31, 2021		831,071		$	6.47		4.10	$	—
Vested at December 31, 2021		555,237		$	8.46		3.64	$	—

Schedule of shares purchased and compensation expense associated with Employee Stock Purchase Plans

	2021		2020
Shares purchased under ESPP plan		11,164		8,998
Plan compensation expense	$	5	$	5