CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands		Jun. 30, 2021		Dec. 31, 2020
Statement of Financial Position [Abstract]
Valuation allowance after adoption of ASC 326		$ 71,713	[1]	$ 61,408
Valuation allowance before adoption of ASC 326	[1]			$ 61,408
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)		25,762,538		25,713,408
Common stock, shares outstanding (in shares)		25,289,966		25,239,748
Treasury stock, at cost (in shares)		472,572		473,660

[1] Beginning January 1, 2021 calculation is based on the current expected credit loss methodology. Prior to January 1, 2021 calculation was based on the incurred loss methodology.