CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Valuation allowance after adoption of ASC 326	$ 67,526	$ 67,773
Common stock, shares authorized (in shares)	90,000,000	90,000,000
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, shares issued (in shares)	25,816,997	25,777,609
Common stock, shares outstanding (in shares)	25,346,149	25,300,793
Treasury stock, at cost (in shares)	470,848	476,816