Condensed Consolidated Statements of Income (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
Income Statement [Abstract]
Net sales	$ 56,933	$ 60,392	$ 76,823	$ 84,060
Costs of goods sold	35,347	37,525	48,828	54,226
Gross profit	21,586	22,867	27,995	29,834
Selling, general and administrative expenses	14,417	15,145	24,919	26,674
Restructuring Charges	412	0	475	0
Interest expense	472	463	800	718
Income (loss) before income taxes	6,285	7,259	1,801	2,442
Income tax expense (benefits)	75	206	38	222
Net income (loss)	$ 6,210	$ 7,053	$ 1,763	$ 2,220
Net income (loss) per common share :
Basic	$ 0.43	$ 0.49	$ 0.12	$ 0.15
Diluted	$ 0.42	$ 0.49	$ 0.12	$ 0.15
Weighted average shares outstanding:
Basic	14,570	14,369	14,506	14,333
Diluted	14,647	14,395	14,591	14,358