CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY (UNAUDITED) - USD ($) shares in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings	Accumulated other comprehensive loss
Balance, shares at Jan. 31, 2020		8,481,665	(509,242)
Balance, amount at Jan. 31, 2020	$ 85,052,000	$ 85,000	$ (5,023,000)	$ 75,171,000	$ 17,581,000	$ (2,762,000)
Net income	27,237,000	0	0	0	27,237,000	0
Other comprehensive income	225,000	$ 0	0	0	0	225,000
Restricted stock issued, shares		9,595
Restricted Stock Plan	1,186,000	$ 0	0	1,186,000	0	0
Return of shares in lieu of payroll withholding	(79,000)	$ 0	$ 0	(79,000)	0	0
Balance, shares at Oct. 31, 2020		8,491,260	(509,242)
Balance, amount at Oct. 31, 2020	113,621,000	$ 85,000	$ (5,023,000)	76,278,000	44,818,000	(2,537,000)
Balance, shares at Jul. 31, 2020		8,489,144	(509,242)
Balance, amount at Jul. 31, 2020	103,357,000	$ 85,000	$ (5,023,000)	75,494,000	35,554,000	(2,753,000)
Net income	9,264,000	0	0	0	9,264,000	0
Other comprehensive income	216,000	$ 0	0	0	0	216,000
Restricted stock issued, shares		2,116
Restricted Stock Plan	808,000	$ 0	0	808,000	0	0
Return of shares in lieu of payroll withholding	(24,000)	$ 0	$ 0	(24,000)	0	0
Balance, shares at Oct. 31, 2020		8,491,260	(509,242)
Balance, amount at Oct. 31, 2020	113,621,000	$ 85,000	$ (5,023,000)	76,278,000	44,818,000	(2,537,000)
Balance, shares at Jan. 31, 2021		8,498,457	(509,242)
Balance, amount at Jan. 31, 2021	122,918,000	$ 85,000	$ (5,023,000)	76,781,000	52,687,000	(1,612,000)
Net income	9,991,000	$ 0	0	0	9,991,000	0
Restricted stock issued, shares		57,215
Restricted Stock Plan	1,025,000	$ 0	0	1,025,000	0	0
Return of shares in lieu of payroll withholding	(622,000)	0	0	(622,000)	0	0
Other comprehensive loss	5,000	0	0	0	0	5,000
Restricted stock issued, amount	1,000	1,000	$ 0	0	0	0
Treasury stock purchased, shares			(271,024)
Treasury stock purchased, amount	(5,887,000)	$ 0	$ (5,887,000)
Balance, shares at Oct. 31, 2021		8,555,672	(780,266)
Balance, amount at Oct. 31, 2021	127,431,000	$ 86,000	$ (10,910,000)	77,184,000	62,678,000	(1,607,000)
Balance, shares at Jul. 31, 2021		8,542,372	(736,696)
Balance, amount at Jul. 31, 2021	125,206,000	$ 86,000	$ (10,017,000)	76,927,000	59,886,000	(1,676,000)
Net income	2,792,000	0	0	0	2,792,000	0
Other comprehensive income	69,000	$ 0	0	0	0	69,000
Restricted stock issued, shares		13,300
Restricted Stock Plan	418,000	$ 0	0	418,000	0	0
Return of shares in lieu of payroll withholding	(161,000)	0	$ 0	(161,000)	0	0
Treasury stock purchased, shares			(43,570)
Treasury stock purchased, amount	(893,000)	$ 0	$ (893,000)
Balance, shares at Oct. 31, 2021		8,555,672	(780,266)
Balance, amount at Oct. 31, 2021	$ 127,431,000	$ 86,000	$ (10,910,000)	$ 77,184,000	$ 62,678,000	$ (1,607,000)