(Loss) Income Per Common Share (Tables)	12 Months Ended
	Dec. 31, 2021
(Loss) Income Per Common Share [Abstract]
Computation Of Basic And Diluted (Loss) Income Per Common Share	Basic (loss) income per common share2021 2020 2019Net (loss) income$ (14,834) $ (16,682) $ 1,720Net loss (income) allocated to participating securities 94 111 (12)Net (loss) income allocated to common shareholders$ (14,740) $ (16,571) $ 1,708 Basic weighted-average common shares outstanding 38,983 37,861 37,118Basic (loss) income per common share$ (0.38) $ (0.44) $ 0.05 Diluted (loss) income per common share2021 2020 2019Net (loss) income$ (14,834) $ (16,682) $ 1,720Net loss (income) allocated to participating securities 94 111 (12)Net (loss) income allocated to common shareholders$ (14,740) $ (16,571) $ 1,708 Basic weighted-average common shares outstanding 38,983 37,861 37,118Effect of dilutive options and awardsa - - 742Diluted weighted-average common shares outstanding 38,983 37,861 37,860Diluted (loss) income per common share$ (0.38) $ (0.44) $ 0.05_____________________a    We excluded stock options from the calculation of diluted weighted-average common shares outstanding if the per share value, including the sum of (i) the exercise price of the options and (ii) the amount of the compensation cost attributed to future services and not yet recognized, was greater than the average market price of the shares, because the inclusion of these stock options would be antidilutive to (loss) income per common share. For the year ended December 31, 2021 and 2020 all stock options and awards were excluded from the calculation of weighted-average common shares outstanding as these would be antidilutive to the net loss. For the year ended December 31, 2019 stock options to purchase 131,000 shares were excluded from the calculation of diluted weighted-average common shares outstanding.