Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings (Loss) Per Share [Abstract]
Options Excluded from calculation									39		15
Net Income (Loss) Attributable to Parent	$ 6,126	$ 9,286	$ 7,601	$ 13,939	$ 2,883	$ 7,198	$ 6,027	$ 1,848	$ 36,952	$ 17,956	$ (4,640)
Weighted Average Number of Shares Outstanding, Basic	31,085	30,988	30,779	30,957	31,016	31,526	31,663	31,928	31,128	31,408	33,124
Weighted Average Number Diluted Shares Outstanding Adjustment									467	692	0
Dilutive Securities, Effect on Basic Earnings Per Share, Dilutive Convertible Securities									$ 103	$ 66	$ 0
Warrant Dilutive Shares									$ 92	$ 0	$ 0
Weighted Average Number of Shares Outstanding, Diluted	32,018	31,459	31,754	31,654	32,075	32,204	32,339	32,549	31,790	32,166	33,124
Earnings Per Share, Basic	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 1.19	$ 0.57	$ (0.14)
Earnings Per Share, Diluted	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 1.16	$ 0.56	$ (0.14)
Restricted Stock Units, outstanding					805					805
stock options, outstanding					615					615
Restricted Stock Units Excluded from Calculation									0		190