Segment Data (Details 1) - USD ($) $ in Thousands		3 Months Ended
		Apr. 30, 2017	Apr. 30, 2016	Jan. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		$ 22,961	$ 20,369
Operating Profit (Loss)		2,473	169
Depreciation and Amortization Expense		186	287
Interest Expense		76	198
Income Tax Expense (Benefits)		688	(24)
Total assets	[1]	83,972		$ 84,554
Assets Less Intersegment	[1]	83,970		84,550
Property and Equipment		8,432		8,527
Capital Expenditures		140	30
Goodwill		871		871
Intersegment Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		(8,480)	(7,630)
External Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		22,960	20,370
Intersegment Eliminations [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		8,480	7,630
Operating Profit (Loss)		90	70
Depreciation and Amortization Expense		(10)	(40)
Interest Expense		0	0
Income Tax Expense (Benefits)		20	20
Total assets	[1]	(53,080)		(52,730)
Property and Equipment		(10)		(20)
Unites States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		13,400	12,780
Operating Profit (Loss)		2,260	1,570
Depreciation and Amortization Expense		30	40
Interest Expense		0	0
Income Tax Expense (Benefits)		0	0
Total assets	[1]	58,160		56,340
Assets Less Intersegment	[1]	27,780		30,940
Property and Equipment		2,060		2,090
Capital Expenditures		0	0
Goodwill		870		870
Unites States [Member] | Intersegment Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		700	590
Unites States [Member] | External Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		12,700	12,190
Other foreign [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		4,050	3,190
Operating Profit (Loss)		430	300
Depreciation and Amortization Expense		40	20
Interest Expense		20	40
Income Tax Expense (Benefits)		50	30
Total assets	[1]	19,080		18,160
Assets Less Intersegment	[1]	11,220		10,170
Property and Equipment		1,460		1,550
Capital Expenditures		0	0
Other foreign [Member] | Intersegment Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		350	320
Other foreign [Member] | External Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		3,700	2,870
Europe (UK) [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		2,130	2,390
Operating Profit (Loss)		70	100
Depreciation and Amortization Expense		0	0
Interest Expense		0	0
Income Tax Expense (Benefits)		10	10
Total assets	[1]	4,130		3,610
Assets Less Intersegment	[1]	4,130		3,580
Property and Equipment		30		30
Capital Expenditures		0	0
Europe (UK) [Member] | Intersegment Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		40	0
Europe (UK) [Member] | External Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		2,090	2,390
Mexico [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		920	760
Operating Profit (Loss)		30	(10)
Depreciation and Amortization Expense		30	30
Interest Expense		0	0
Income Tax Expense (Benefits)		0	0
Total assets	[1]	4,030		3,990
Assets Less Intersegment	[1]	4,070		4,070
Property and Equipment		2,020		2,050
Capital Expenditures		10	0
Mexico [Member] | Intersegment Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		350	390
Mexico [Member] | External Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		570	370
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		10,520	8,410
Operating Profit (Loss)		970	470
Depreciation and Amortization Expense		60	90
Interest Expense		0	40
Income Tax Expense (Benefits)		290	90
Total assets	[1]	32,220		30,540
Assets Less Intersegment	[1]	20,300		18,440
Property and Equipment		2,020		2,050
Capital Expenditures		20	20
China [Member] | Intersegment Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		6,620	5,860
China [Member] | External Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		3,900	2,550
India [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total assets	[1]	(1,350)		(1,360)
Assets Less Intersegment	[1]	500		430
Property and Equipment		20		30
Capital Expenditures		0	10
Corporate [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		420	470
Operating Profit (Loss)		(1,380)	(2,330)
Depreciation and Amortization Expense		40	150
Interest Expense		60	120
Income Tax Expense (Benefits)		320	(170)
Total assets	[1]	20,780		26,000
Assets Less Intersegment	[1]	15,970		16,920
Property and Equipment		830		$ 750
Capital Expenditures		110	0
Corporate [Member] | Intersegment Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		$ 420	$ 470

[1] Negative assets reflect intersegment amounts eliminated in consolidation