Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member] Revision of Prior Period, Adjustment [Member]	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Stockholder's equity at Jan. 31, 2021		$ 82	$ 0	$ 60,875	$ (8,357)	$ (3,287)	$ 49,313
Net income (loss)		0	0	0	(843)	0	(843)
Stock-based compensation expense		0	0	272	0	0	272
Foreign currency translation adjustment		0	0	0	0	40	40
Stockholder's equity at Apr. 30, 2021		$ 82	0	61,147	(9,200)	(3,247)	48,782
Balance (in shares) at Jan. 31, 2021	0	8,164,989
Stockholder's equity at Jan. 31, 2021		$ 82	0	60,875	(8,357)	(3,287)	49,313
Net income (loss)							3,068
Stockholder's equity at Oct. 31, 2021		$ 81	$ (496)	61,461	(5,289)	(3,375)	52,382
Balance (in shares) at Jan. 31, 2021	0	8,164,989
Treasury stock purchased (in shares)			(234,281)
Shares issued, net of shares used for tax withholding (in shares)		221,046
Balance (in shares) at Oct. 31, 2021		8,151,754
Stockholder's equity at Apr. 30, 2021		$ 82	$ 0	61,147	(9,200)	(3,247)	48,782
Net income (loss)		0	0	0	3,416	0	3,416
Common stock issued under stock plans, net of shares used for tax withholding		(1)	0	(254)	0	0	(255)
Stock-based compensation expense		0	0	276	0	0	276
Foreign currency translation adjustment		0	0	0	0	(150)	(150)
Stockholder's equity at Jul. 31, 2021		81	0	61,169	(5,784)	(3,397)	52,069
Net income (loss)		0	0	0	495	0	495
Common stock issued under stock plans, net of shares used for tax withholding		0	0	22	0	0	22
Stock-based compensation expense		0	0	270	0	0	270
Foreign currency translation adjustment		0	0	0	0	22	22
Repurchase of common stock		0	(496)	0	0	0	(496)
Stockholder's equity at Oct. 31, 2021		$ 81	(496)	61,461	(5,289)	(3,375)	52,382
Balance (in shares) at Oct. 31, 2021		8,151,754
Stockholder's equity at Jan. 31, 2022		$ 82	(1,992)	61,766	(2,295)	(3,104)	54,457
Net income (loss)		0	0	0	(885)	0	(885)
Common stock issued under stock plans, net of shares used for tax withholding		0	0	16	0	0	16
Stock-based compensation expense		0	0	236	0	0	236
Foreign currency translation adjustment		0	0	0	0	(932)	(932)
Stockholder's equity at Apr. 30, 2022		$ 82	(1,992)	62,018	(3,180)	(4,036)	52,892
Balance (in shares) at Jan. 31, 2022	(234,281)	8,151,754
Stockholder's equity at Jan. 31, 2022		$ 82	(1,992)	61,766	(2,295)	(3,104)	54,457
Net income (loss)							2,711
Stockholder's equity at Oct. 31, 2022		$ 80	$ 0	62,307	(1,617)	(5,979)	54,791
Balance (in shares) at Jan. 31, 2022	(234,281)	8,151,754
Treasury stock purchased (in shares)			(4,887)
Shares issued, net of shares used for tax withholding (in shares)		92,016
Balance (in shares) at Oct. 31, 2022		8,004,602
Stockholder's equity at Apr. 30, 2022		$ 82	$ (1,992)	62,018	(3,180)	(4,036)	52,892
Net income (loss)		0	0	0	1,868	0	1,868
Common stock issued under stock plans, net of shares used for tax withholding		0	0	(247)	0	0	(247)
Stock-based compensation expense		0	0	284	0	0	284
Foreign currency translation adjustment		0	0	0	0	(455)	(455)
Repurchase of common stock		0	(43)	0	0	0	(43)
Retirement of treasury stock		(2)	2,035	0	(2,033)	0	0
Stockholder's equity at Jul. 31, 2022		80	0	62,055	(3,345)	(4,491)	54,299
Net income (loss)		0	0	0	1,728	0	1,728
Common stock issued under stock plans, net of shares used for tax withholding		0	0	9	0	0	9
Stock-based compensation expense		0	0	243	0	0	243
Foreign currency translation adjustment		0	0	0	0	(2,735)	(2,735)
Pension liability		0	0	0	0	1,247	1,247
Stockholder's equity at Oct. 31, 2022		$ 80	$ 0	$ 62,307	$ (1,617)	$ (5,979)	$ 54,791
Treasury stock purchased (in shares)							0
Balance (in shares) at Oct. 31, 2022		8,004,602