Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Earnings (Loss) Per Share [Abstract]
Options Excluded from calculation									15		707
Net Income (Loss) Attributable to Parent	$ 2,883	$ 7,198	$ 6,027	$ 1,848	$ 1,494	$ (998)	$ (4,412)	$ (724)	$ 17,956	$ (4,640)	$ 3,458
Weighted Average Number of Shares Outstanding, Basic	31,016	31,526	31,663	31,928	32,882	33,237	33,240	33,092	31,408	33,124	32,783
Weighted Average Number Diluted Shares Outstanding Adjustment									692	0	605
Weighted Average Number of Shares Outstanding, Diluted	32,075	32,204	32,339	32,549	33,504	33,237	33,240	33,092	32,166	33,124	33,388
Earnings Per Share, Basic	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0.57	$ (0.14)	$ 0.11
Earnings Per Share, Diluted	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0.56	$ (0.14)	$ 0.10
Restricted Stock Units, outstanding					805					805
stock options, outstanding					615					615
Restricted Stock Units Excluded from Calculation									190		3