Segment Data (Details 1) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended			12 Months Ended
		Jul. 31, 2015	Jul. 31, 2014		Jul. 31, 2015	Jul. 31, 2014		Jan. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		$ 29,465	$ 22,812	[1]	$ 54,284	$ 44,570	[1]
Operating Profit (Loss)		5,700	1,798	[1]	8,919	2,656	[1]
Depreciation and Amortization Expense		230	260		474	576	[1]
Interest Expense		(210)	(517)	[1]	(393)	(1,003)	[1]
Income Tax Expense (Benefits)		1,902	677	[1]	2,794	700	[1]
Total assets		92,135			92,135			$ 93,208	[1]
Property and Equipment		9,696			9,696			10,144	[1]
Capital Expenditures		470						880
Goodwill		871			871			871	[1]
External Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		29,470	22,810		54,280	44,570
Intersegment Eliminations [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		14,690	10,390		24,950	20,800
Operating Profit (Loss)		30	130		(110)	80
Depreciation and Amortization Expense		(40)	(10)		(70)	(10)
Interest Expense		0	50		0	0
Income Tax Expense (Benefits)		0	40		(30)	10
Total assets	[2]	(55,220)			(55,220)			(80,490)
Property and Equipment		(100)			(100)			(120)
Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		(14,690)	(10,390)		(24,950)	(20,800)
Unites States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		19,510	12,600		33,160	25,700
Operating Profit (Loss)		5,120	1,560		7,690	2,470
Depreciation and Amortization Expense		40	40		70	90
Interest Expense		0	0		0	0
Income Tax Expense (Benefits)		0	0		0	0
Total assets	[2]	44,600			44,600			36,350
Property and Equipment		2,250			2,250			2,300
Capital Expenditures		30						50
Goodwill		870			870			870
Unites States [Member] | External Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		18,480	11,970		31,330	24,160
Unites States [Member] | Intersegment Eliminations [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		1,030	630		1,830	1,540
Total assets	[2]	37,410			37,410			30,140
Other foreign [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		3,760	3,210		6,840	6,890
Operating Profit (Loss)		410	60		310	240
Depreciation and Amortization Expense		10	30		30	60
Interest Expense		40	(10)		60	20
Income Tax Expense (Benefits)		70	110		120	170
Total assets	[2]	18,120			18,120			18,000
Property and Equipment		1,680			1,680			1,770
Capital Expenditures		20						50
Other foreign [Member] | External Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		3,610	2,930		6,610	6,380
Other foreign [Member] | Intersegment Eliminations [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		150	280		230	510
Total assets	[2]	10,170			10,170			10,320
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total assets	[2]	6,160			6,160			6,750
Property and Equipment		70			70			70
Capital Expenditures		0						30
Europe [Member] | Intersegment Eliminations [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total assets	[2]	6,150			6,150			6,750
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		3,450	3,730		9,060	6,520
Operating Profit (Loss)		410	320		2,200	530
Depreciation and Amortization Expense		0	0		10	10
Interest Expense		0	0		10	20
Income Tax Expense (Benefits)		20	70		420	100
Europe [Member] | External Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		3,450	3,720		9,050	6,510
Europe [Member] | Intersegment Eliminations [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		0	10		10	10
Mexico [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		900	850		1,750	1,770
Operating Profit (Loss)		(40)	(200)		(90)	(210)
Depreciation and Amortization Expense		40	10		70	30
Interest Expense		0	(20)		0	0
Income Tax Expense (Benefits)		0	(40)		0	(70)
Total assets	[2]	4,150			4,150			4,200
Property and Equipment		2,150			2,150			2,170
Capital Expenditures		0						30
Mexico [Member] | External Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		350	280		650	700
Mexico [Member] | Intersegment Eliminations [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		550	570		1,100	1,070
Total assets	[2]	4,200			4,200			4,130
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		15,930	12,620		27,190	23,320
Operating Profit (Loss)		1,410	1,300		2,180	2,260
Depreciation and Amortization Expense		80	60		160	110
Interest Expense		40	20		70	(10)
Income Tax Expense (Benefits)		310	250		480	490
Total assets	[2]	32,160			32,160			33,040
Property and Equipment		2,660			2,660			2,700
Capital Expenditures		120						310
China [Member] | External Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		3,580	3,910		6,640	6,820
China [Member] | Intersegment Eliminations [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		12,350	8,710		20,550	16,500
Total assets	[2]	17,580			17,580			17,030
Brazil [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total assets	[2]	0			0			6,340
Brazil [Member] | Intersegment Eliminations [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total assets	[2]	0			0			6,330
Corporate [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		610	190		1,230	1,170
Operating Profit (Loss)		(1,640)	(1,370)		(3,260)	(2,710)
Depreciation and Amortization Expense		100	130		200	290
Interest Expense		130	480		250	970
Income Tax Expense (Benefits)		1,500	250		1,800	0
Total assets	[2]	43,580			43,580			70,330
Property and Equipment		950			950			1,200
Capital Expenditures		300						390
Corporate [Member] | Intersegment Eliminations [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		610	$ 190		1,230	$ 1,170
Total assets	[2]	16,310			16,310			18,070
India [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total assets	[2]	(1,420)			(1,420)			(1,310)
Property and Equipment		40			40			50
Capital Expenditures		0						20
India [Member] | Intersegment Eliminations [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total assets	[2]	$ 310			$ 310			$ 440

[1] Restated for discontinued operations.

[2] Negative assets reflect intersegment accounts eliminated in consolidation