CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Jan. 31, 2010	$ 55,647	$ (1,353,247)	$ 49,622,632	$ 25,221,050	$ (1,122,293)	$ 72,423,789
Balance (in shares) at Jan. 31, 2010	5,564,732	(125,322)
Net income (loss)	0	0	0	971,999	0	971,999
Other comprehensive income (loss)	0	0	0	0	1,774,105	1,774,105
Stock based compensation:
Restricted stock issued at par	40	0	(40)	0	0	0
Restricted stock issued at par (in shares)	4,012	0
Restricted stock plan:
2006 Plan	0	0	50,123	0	0	50,123
2009 Plan	0	0	626,181	0	0	626,181
Return of shares in lieu of payroll tax withholding	0	0	(19,283)	0	0	(19,283)
Stock repurchase program	0	(1,659,673)	0	0	0	(1,659,673)
Stock repurchase program (in shares)		(189,119)
Balance at Jan. 31, 2011	55,687	(3,012,920)	50,279,613	26,193,049	651,812	74,167,241
Balance (in shares) at Jan. 31, 2011	5,568,744	(314,441)
Net income (loss)	0	0	0	(376,825)	0	(376,825)
Other comprehensive income (loss)	0	0	0	0	(677,301)	(677,301)
Stock based compensation:
Grant of director stock options	0	0	22,280	0	0	22,280
Restricted stock issued at par	132	0	(132)	0	0	0
Restricted stock issued at par (in shares)	13,175	0
Restricted stock plan:
2006 Plan	0	0	4,465	0	0	4,465
2009 Plan	0	0	516,797	0	0	516,797
Return of shares in lieu of payroll tax withholding	0	0	(50,429)	0	0	(50,429)
Stock repurchase program	0	(339,371)	0	0	0	(339,371)
Stock repurchase program (in shares)	0	(42,000)
Balance at Jan. 31, 2012	$ 55,819	$ (3,352,291)	$ 50,772,594	$ 25,816,224	$ (25,489)	$ 73,266,857
Balance (in shares) at Jan. 31, 2012	5,581,919	(356,441)