Consolidated Statements Of Cash Flows (USD $)	12 Months Ended
	Jan. 31, 2012	Jan. 31, 2011
Cash Flows from Operating Activities:
Net Income	$ 3,131,691	$ 2,061,769
Adjustments to Reconcile Net Income to Net Cash Provided By Operating Activities:
Depreciation and Amortization	1,575,665	1,575,935
Employee Stock Ownership Plan Contribution	100,000	80,000
Share-Based Compensation	207,884	333,240
Deferred Income Tax Benefit	(207,726)	(134,386)
Excess Tax Benefit From Share-Based Compensation	(305,656)	(384,503)
Legal Settlement Receivable		1,495,051
Loss on Sale of Asheboro Operations	617,877
Loss on Sale of Securities Available for Sale		30,961
Changes in Assets and Liabilities, Net of Impact of Divestiture:
Accounts Receivable	(688,507)	(1,939,117)
Inventories	(4,508)	(2,365,609)
Accounts Payable and Accrued Expenses	679,291	791,685
Income Taxes Payable	562,147	(290,837)
Other	(195,841)	93,375
Net Cash Provided by Operating Activities	5,472,317	1,347,564
Cash Flows from Investing Activities:
Proceeds from Sales/Maturities of Securities Available for Sale	10,155,000	9,644,039
Purchases of Securities Available for Sale	(8,570,791)	(12,957,711)
Additions to Property, Plant and Equipment	(1,154,693)	(2,089,858)
Net Cash Provided by/Used in Investing Activities	429,516	(5,403,530)
Cash Flows from Financing Activities:
Proceeds (Contributions) from Common Shares Issued Under Employee Benefit Plans and Employee Stock Option Plans, Net of Payment of Minimum Tax Withholdings	(168,789)	434,016
Cash Settlement of Stock Options		(186,054)
Purchases of Treasury Stock		(975,682)
Excess Tax Benefit from Share-Based Compensation	305,656	384,503
Dividends Paid	(2,055,214)	(2,035,778)
Net Cash Used in Financing Activities	(1,918,347)	(2,378,995)
Net Increase (Decrease) in Cash and Cash Equivalents	3,983,486	(6,434,961)
Cash and Cash Equivalents, Beginning of Year	7,720,135	14,155,096
Cash and Cash Equivalents, End of Year	11,703,621	7,720,135
Supplemental Information:
Cash Paid During the Period for: Income Taxes, Net of Refunds	$ 740,041	$ 1,080,994