Equity Transactions and Share-based Compensation - Narrative (Details) - USD ($)		3 Months Ended			12 Months Ended
	Jan. 01, 2023	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2022	Aug. 10, 2020
Share-based Compensation Arrangement by Share-based Payment Award
Shares issued for restricted stock units (in shares)		221,000		134,000
One-time employee termination benefits		$ 600,000	$ 1,854,000		$ 400,000
Public Offering
Share-based Compensation Arrangement by Share-based Payment Award
Sale of common stock, amount authorized				$ 250,000,000		$ 75,000,000
Sales of stock, authorization term				3 years
The 2013 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Evergreen option provision, equity increase	4.00%
Additional shares authorized (in shares)	3,500,000
Number of shares reserved for future issuance (in shares)		3,000,000
Shares issued pursuant to the exercise of stock options (in shares)		0		34,000
The 2013 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award
Additional shares authorized (in shares)	422,535
Number of shares reserved for future issuance (in shares)		2,300,000
Number of shares authorized to be granted (in shares)		4,800,000
Participation term		24 months
Percentage of pay that employee can contribute, maximum		15.00%
Discounted purchase price from market price, offering date		15.00%
Discounted purchase price from market price, purchase date		15.00%
Purchase interval		6 months
Shares issued pursuant to employee stock purchase plan (in shares)		308,000		384,000