Condensed Consolidated Balance Sheets (USD $)	Nov. 30, 2011	Feb. 28, 2011
Assets
Cash and Cash Equivalents	$ 160,098,553	$ 138,389,837
Accounts Receivable (Net of Allowance for Doubtful Accounts of $850,000 at November 30, 2011 and $720,000 at February 28, 2011)	65,454,139	61,945,377
Inventories:
Raw Material	43,270,127	42,745,225
Work-In-Process	19,024,305	12,451,979
Finished Goods	2,367,061	4,355,188
Costs and Estimated Earnings In Excess of Billings On Uncompleted Contracts	14,048,240	15,880,092
Deferred Income Taxes	6,359,213	7,003,167
Prepaid Expenses and Other	2,397,618	1,248,270
Total Current Assets	313,019,256	284,019,135
Property, Plant and Equipment, Net	127,090,526	125,361,635
Goodwill	112,902,427	113,463,436
Intangibles and Other Assets, Net	40,653,502	43,680,635
Total Assets	593,665,711	566,524,841
Liabilities and Shareholders' Equity
Accounts Payable	24,292,558	21,713,896
Income Taxes Payable	516,294	2,838,901
Accrued Salaries and Wages	6,348,495	7,038,999
Other Accrued Liabilities	17,675,813	19,158,165
Customer Advance Payments	11,284,795	7,308,909
Long Term Debt Due Within One Year	14,285,714
Billings In Excess of Costs and Estimated Earnings On Uncompleted Contracts	472,217	127,360
Total Current Liabilities	74,875,886	58,186,230
Long-Term Debt Due After One Year	210,714,286	225,000,000
Deferred Income Taxes	30,170,642	27,320,738
Shareholders' Equity:
Common Stock, $1 Par Value, Shares Authorized 50,000,000, Shares Issued 12,609,160	12,609,160	12,609,160
Capital In Excess of Par Value	26,578,137	24,141,022
Retained Earnings	238,561,936	218,889,963
Accumulated Other Comprehensive Income	329,942	920,063
Less Common Stock Held In Treasury, At Cost (26,545 Shares at November 30, 2011 and 109,804 Shares at February 28, 2011)	(174,278)	(542,335)
Total Shareholders' Equity	277,904,897	256,017,873
Total Liabilities and Shareholders' Equity	$ 593,665,711	$ 566,524,841