CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net sales	$ 131,622	$ 145,658	$ 252,805	$ 287,673
Cost of sales	105,930	117,098	204,040	232,301
Gross profit	25,692	28,560	48,765	55,372
Selling, general and administrative expenses	17,966	20,764	35,636	38,372
Impairment of goodwill and other intangible assets	(2,611)	0	105,972	0	[1]
Restructuring charges	373	344	601	502
Income (loss) from operations	9,964	7,452	(93,444)	16,498
Interest expense	(1,505)	(1,994)	(3,706)	(4,173)
Interest income and other, net	184	17	224	420
Earnings (loss) before (benefit) provision for income taxes	8,643	5,475	(96,926)	12,745
(Benefit) provision for income taxes	(14,133)	(587)	(19,005)	1,363
Net earnings (loss) available to common stockholders	22,776	6,062	(77,921)	11,382	[1]
Class A [Member]
Net earnings (loss) available to common stockholders	$ 3,987	$ 1,054	$ (13,718)	$ 1,981
Net earnings (loss) per common share:
Common share - basic and diluted (in dollars per share)	$ 1.83	$ 0.49	$ (6.31)	$ 0.91
Weighted-average number of shares outstanding:
Common share - basic and diluted (in shares)	2,175	2,175	2,175	2,175
Dividends paid per common share:
Common share (in dollars per share)	$ 0.06	$ 0.06	$ 0.12	$ 0.12
Class B [Member]
Net earnings (loss) available to common stockholders	$ 18,789	$ 5,008	$ (64,203)	$ 9,401
Net earnings (loss) per common share:
Common share - basic and diluted (in dollars per share)	$ 1.93	$ 0.52	$ (6.61)	$ 0.97
Weighted-average number of shares outstanding:
Common share - basic and diluted (in shares)	9,729	9,693	9,715	9,682
Dividends paid per common share:
Common share (in dollars per share)	$ 0.07	$ 0.07	$ 0.14	$ 0.14

[1] (Revised)