Segment Data (Details 1) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2016	Oct. 31, 2015	Jan. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		$ 23,243	$ 24,888	$ 65,881	$ 79,172
Operating Profit (Loss)		2,248	3,192	4,996	12,111
Depreciation and Amortization Expense		360	240	963	704
Interest Expense		150	183	522	576
Income Tax Expense (Benefits)		583	882	1,548	3,676
Total assets	[1]	85,047		85,047		$ 88,260
Assets Less Intersegment	[1]	85,050		85,050		88,260
Property and Equipment		8,538		8,538		9,268
Goodwill		871		871		871
Capital Expenditures				120	720
Intersegment Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		(8,270)	(11,990)	(25,640)	(36,940)
External Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		23,240	24,890	65,880	79,170
Intersegment Eliminations [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		8,270	11,990	25,640	36,940
Operating Profit (Loss)		30	(110)	90	(220)
Depreciation and Amortization Expense		40	(30)	(40)	(110)
Interest Expense		0	0	0	0
Income Tax Expense (Benefits)		10	(10)	20	(40)
Total assets	[1]	(51,390)		(51,390)		(52,520)
Property and Equipment		(30)		(30)		(70)
Unites States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		12,750	15,960	38,090	49,120
Operating Profit (Loss)		1,580	3,110	5,620	10,800
Depreciation and Amortization Expense		40	40	120	110
Interest Expense		0	0	0	0
Income Tax Expense (Benefits)		0	0	0	0
Total assets	[1]	53,660		53,660		48,180
Assets Less Intersegment	[1]	30,750		30,750		33,630
Property and Equipment		2,100		2,100		2,200
Goodwill		870		870		870
Capital Expenditures				20	60
Unites States [Member] | Intersegment Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		1,490	1,300	2,850	3,140
Unites States [Member] | External Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		11,260	14,660	35,240	45,980
Other foreign [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		5,340	3,730	12,250	10,570
Operating Profit (Loss)		810	270	1,360	580
Depreciation and Amortization Expense		30	10	110	30
Interest Expense		20	30	80	80
Income Tax Expense (Benefits)		160	80	270	190
Total assets	[1]	19,470		19,470		17,550
Assets Less Intersegment	[1]	10,830		10,830		9,910
Property and Equipment		1,540		1,540		1,570
Capital Expenditures				0	60
Other foreign [Member] | Intersegment Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		250	120	760	340
Other foreign [Member] | External Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		5,090	3,610	11,490	10,230
Europe (UK) [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		1,900	2,810	6,950	11,880
Operating Profit (Loss)		10	260	290	2,450
Depreciation and Amortization Expense		0	0	0	10
Interest Expense		0	0	0	10
Income Tax Expense (Benefits)		10	10	40	440
Total assets	[1]	4,050		4,050		5,050
Assets Less Intersegment	[1]	4,040		4,040		5,030
Property and Equipment		40		40		60
Capital Expenditures				0	0
Europe (UK) [Member] | Intersegment Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		0	0	0	10
Europe (UK) [Member] | External Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		1,900	2,810	6,950	11,870
Mexico [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		840	1,060	2,420	2,810
Operating Profit (Loss)		40	170	50	80
Depreciation and Amortization Expense		30	40	90	110
Interest Expense		0	0	0	0
Income Tax Expense (Benefits)		0	0	0	0
Total assets	[1]	4,010		4,010		4,250
Assets Less Intersegment	[1]	3,930		3,930		4,230
Property and Equipment		2,020		2,020		2,110
Capital Expenditures				0	0
Mexico [Member] | Intersegment Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		440	620	1,290	1,720
Mexico [Member] | External Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		400	440	1,130	1,090
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		10,410	13,000	30,370	40,180
Operating Profit (Loss)		1,370	1,160	3,150	3,350
Depreciation and Amortization Expense		80	70	250	240
Interest Expense		40	30	120	110
Income Tax Expense (Benefits)		360	300	810	780
Total assets	[1]	28,430		28,430		29,920
Assets Less Intersegment	[1]	18,010		18,010		17,630
Property and Equipment		2,140		2,140		2,370
Capital Expenditures				30	130
China [Member] | Intersegment Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		5,820	9,630	19,300	30,180
China [Member] | External Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		4,590	3,370	11,070	10,000
Corporate [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		270	320	1,440	1,550
Operating Profit (Loss)		(1,600)	(1,670)	(5,560)	(4,930)
Depreciation and Amortization Expense		140	110	430	310
Interest Expense		90	120	320	380
Income Tax Expense (Benefits)		40	500	410	2,310
Total assets	[1]	28,160		28,160		37,180
Assets Less Intersegment	[1]	17,030		17,030		17,390
Property and Equipment		700		700		1,000
Capital Expenditures				50	470
Corporate [Member] | Intersegment Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales from continuing operations		270	$ 320	1,440	1,550
India [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total assets	[1]	(1,340)		(1,340)		(1,350)
Assets Less Intersegment	[1]	460		460		440
Property and Equipment		$ 30		30		$ 30
Capital Expenditures				$ 20	$ 0

[1] Negative assets reflect intersegment accounts eliminated in consolidation