Condensed Consolidated Statements of Cash Flow (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Aug. 31, 2013	Aug. 31, 2012
Cash Flows From: Operating Activities:
Net Income	$ 2,383	$ 5,471
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation, Amortization and Accretion	1,962	2,450
Equity in Results of Joint Venture	(116)	(115)
Deferred Income Taxes	567	2,884
Gain on Sales of Assets		(3,216)
Compensatory Effect of Stock Plans	401	292
Changes in Assets and Liabilities:
Receivables	772	2,015
Income Taxes Receivable	1,367	(1,489)
Prepaid Expenses	(500)	(429)
Inventories	792	(1,134)
Accounts Payable	1,641	(1,152)
Accrued Expenses	(1,466)	(904)
Pension and Postretirement Liabilities	(1,833)	(692)
Other, Net	(754)	(93)
Net Cash Provided by Operating Activities	5,216	3,888
Investing Activities:
Capital Expenditures	(3,536)	(2,060)
Restricted Cash	(1,123)
Investment in Research Entity	(105)
Proceeds from Sale of Assets		9,180
Net Cash Provided by (Used In) Investing Activities	(4,764)	7,120
Financing Activities:
Purchases of Treasury Stock		(1,999)
Issuance of Common Stock	455	3
Net Cash Provided by ( Used In) Financing Activities	455	(1,996)
Effect of Exchange Rate Changes on Cash	55	(48)
Net Increase in Cash and Cash Equivalents	962	8,964
Cash and Cash Equivalents at Beginning of Period	37,508	28,201
Cash and Cash Equivalents at End of Period	38,470	37,165
Non-Cash Transactions:
Capital Expenditures in Accounts Payable at End of Period	424	634
Treasury Stock Purchases in Accrued Liabilities at Period-End		14
Supplemental Cash Flow Disclosures:
Interest Paid	12	16
Income Taxes Paid (Refunded), Net	$ (1,415)	$ 1,827