Consolidated Statements of Cash Flows $ in Thousands, £ in Millions	12 Months Ended
	Jan. 31, 2017 USD ($)	Jan. 31, 2016 USD ($)	Jan. 31, 2015 USD ($)
Cash Flows from Operating Activities:
Net Income	$ 4,228	$ 4,525	$ 4,662
Adjustments to Reconcile Net Income to Net Cash Provided By Operating Activities:
Depreciation and Amortization	2,431	2,065	2,063
Share-Based Compensation	1,019	1,209	511
Deferred Income Tax Provision (Benefit)	174	(292)	(397)
Excess Tax Benefit From Share-Based Compensation		(65)	(107)
Gain on Sale of UK Property	(419)
Write-down of Asset Held for Sale			220
Changes in Assets and Liabilities, Net of Impact of Acquisitions:
Accounts Receivable	(416)	(1,285)	(2,741)
Inventories	(4,659)	600	(404)
Accounts Payable and Accrued Expenses	1,426	151	810
Income Taxes Payable	2,187	412	(1,747)
Other	982	407	(1,379)
Net Cash Provided by Operating Activities	6,953	7,727	1,491
Cash Flows from Investing Activities:
Proceeds from Maturities of Securities Available for Sale	4,029	9,978	12,885
Purchases of Securities Available for Sale	(400)	(5,192)	(9,306)
Proceeds from Sale of UK Property	474
Acquisition of RITEC's Aerospace Printer Business		(7,360)
Net Proceeds Received for Sale of Asset Held for Sale		1,698
Release of Funds Held in Escrow From Sale of Grass			1,800
Proceeds Received on Disposition of Grass Inventory			2,355
Payments Received on Line of Credit and Note Receivable	256	395	258
Additions to Property, Plant and Equipment	(1,238)	(3,061)	(2,247)
Net Cash Provided (Used) by Investing Activities	3,121	(3,542)	5,745
Cash Flows from Financing Activities:
Net Proceeds from Common Shares Issued Under Employee Benefit Plans and Employee Stock Option Plans, Net of Payment of Minimum Tax Withholdings	79	387	870
Purchase of Treasury Stock			(6,250)
Excess Tax Benefit from Share-Based Compensation		65	107
Dividends Paid	(2,082)	(2,048)	(2,128)
Net Cash Used in Financing Activities	(2,003)	(1,596)	(7,401)
Effect of Foreign Exchange Rate Changes on Cash and Cash Equivalents	(16)	(504)	(218)
Net Increase (Decrease) in Cash and Cash Equivalents	8,055	2,085	(383)
Cash and Cash Equivalents, Beginning of Year	10,043	7,958	8,341
Cash and Cash Equivalents, End of Year	18,098	10,043	7,958
Supplemental Information:
Income Taxes, Net of Refunds	$ (84)	$ 2,257	$ 4,566