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Earnings Per Share Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Earnings Per Share [Abstract]
Income (Loss) from Continuing Operations Attributable to Parent	$ 2,569	$ 577	$ 4,862	$ 6,525	$ (2,658)	$ 2,200	$ 2,747	$ 9,356	$ 14,533	$ 11,645	$ 37,193
Earnings Allocated to Unvested Restricted Stock									(62)	(57)	(135)
Income from Continuing Operations Less Earnings Allocated to Unvested Restricted Stock									$ 14,471	$ 11,588	$ 37,058
Weighted Average Number of Shares Outstanding, Basic									17,877	17,971	16,438
Dilutive Securities, Effect on Basic Earnings Per Share, Options and Restrictive Stock Units									$ 118	$ 66	$ 336
Incremental common shares attributable to dilutive effect of conversion of debt securities									10	337	941
Weighted average number of common and common equivalent shares outstanding for diluted EPS computation									18,005	18,374	17,715
Basic earnings per common share (in dollars per share)	$ 0.14	$ 0.03	$ 0.27	$ 0.36	$ (0.14)	$ 0.11	$ 0.15	$ 0.58	$ 0.81	$ 0.64	$ 2.25
Diluted earnings per common share (in dollars per share)	$ 0.14	$ 0.03	$ 0.27	$ 0.36	$ (0.14)	$ 0.11	$ 0.15	$ 0.52	$ 0.80	$ 0.63	$ 2.09

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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