CONSOLIDATED STATEMENT OF OPERATIONS (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2013	Jul. 31, 2012
Document Period End Date			Jul. 31, 2013
Net sales	$ 61,665	$ 42,882	$ 117,249	$ 86,504
Cost of sales	47,972	35,299	90,589	72,175
Gross profit	13,693	7,583	26,660	14,329
Operating expenses
General and administrative expenses	6,540	5,316	13,222	11,394
Selling expenses	2,383	2,870	5,778	5,400
Total operating expenses	8,923	8,186	19,000	16,794
Income (loss) from operations	4,770	(603)	7,660	(2,465)
(Loss) income from joint venture	(172)	69	(467)	(177)
Interest expense, net	403	353	840	658
Income (loss) from continuing operations before income taxes	4,195	(887)	6,353	(3,300)
Income tax (benefit) expense	(241)	350	(183)	61
Income (loss) from continuing operations	4,436	(1,237)	6,536	(3,361)
(Loss) income from discontinued operations, net of tax	(40)	(120)	8,941	(52)
Net income (loss)	$ 4,396	$ (1,357)	$ 15,477	$ (3,413)
Weighted average number of shares outstanding
Basic	6,985	6,923	6,958	6,919
Diluted	7,054	6,923	6,985	6,919
Earnings (loss) per share from continuing operations
Basic	$ 0.64	$ (0.18)	$ 0.94	$ (0.49)
Diluted	$ 0.63	$ (0.18)	$ 0.94	$ (0.49)
Earnings (loss) per share discontinued operations
Basic and diluted	$ (0.01)	$ (0.02)	$ 1.28	$ (0.01)
Earnings (loss) per share
Basic	$ 0.63	$ (0.20)	$ 2.22	$ (0.49)
Diluted	$ 0.62	$ (0.20)	$ 2.22	$ (0.49)