(7) Shareholders’ Equity (Tables)

12 Months Ended

Dec. 31, 2022

Equity [Abstract]

Schedule of stock purchases

	Twelve Months Ended
	December 31, 2022				December 31, 2021
	Shares		Avg. Price		Shares		Avg. Price
Open market purchases		3,246,511	$	10.44		1,639,138	$	6.98
Shares redeemed upon net exercise of stock options		893,153		13.56		245,743		6.95
Other		–		–		1,999,995		6.26
Total stock purchases		4,139,664	$	11.11		3,884,876	$	3.97

Schedule of assumptions for stock options

	Year Ended December 31,
	2022		2021		2020
Expected life (years)		4.00		4.00		4.01
Risk-free interest rate		2.38%		0.49%		0.25%
Volatility		76%		72%		73%
Expected dividend yield		–		–		–

Schedule of option activity

						Weighted
	Number of			Weighted		Average
	Shares			Average		Remaining
	(in thousands)			Exercise Price		Contractual Term
Options outstanding at the beginning of period		13,075		$	4.54		N/A
Granted		1,710			10.28		N/A
Exercised		(3,128	)		4.89		N/A
Forfeited/Expired		(490	)		7.07		N/A
Options outstanding at the end of period		11,167		$	5.21		3.15 years
Options exercisable at the end of period		7,770		$	4.56		2.12 years

Schedule of options outstanding and exercisable

	Number of shares as of				Number of shares as of
	December 31, 2022				December 31, 2021
	Outstanding		Exercisable		Outstanding		Exercisable
	(In thousands)				(In thousands)
Range of exercise prices:
$0.95 - $1.99		–		–		577		577
$2.00 - $2.99		1,445		775		1,517		489
$3.00 - $3.99		3,785		3,495		4,285		3,382
$4.00 - $4.99		2,739		1,802		2,870		1,410
$5.00 - $5.99		–		–		–		–
$6.00 - $6.99		740		740		2,651		2,652
$7.00 - $7.99		748		748		1,175		1,175
$10.00 - $10.99		1,710		210		–		–
Total shares		11,167		7,770		13,075		9,685