Earnings Per Share (Schedule of Earnings Per Share, Basic and Diluted) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Numerator for both basic and diluted earnings per share:
Net income (loss)	$ 9,004	$ (94,351)
Denominator, basic shares	18,164	18,137
Effect of dilutive securities:
Stock-based compensation awards	0	0
Denominator, diluted shares	18,164	18,137
Basic earnings (loss) per share: (in dollars per share)	$ 0.50	$ (5.20)
Diluted earnings (loss) per share: (in dollars per share)	$ 0.50	$ (5.20)