Condensed Consolidated Balance Sheets (USD $)	Nov. 30, 2012	Feb. 29, 2012
Current Assets:
Cash and Cash Equivalents	$ 49,505,820	$ 143,302,666
Accounts Receivable (Net of Allowance for Doubtful Accounts of $1,200,000 at November 30, 2012 and $898,000 at February 29, 2012)	94,398,244	74,647,303
Inventories:
Raw Material	45,269,143	44,008,243
Work-In-Process	35,776,081	13,860,151
Finished Goods	3,096,738	2,412,736
Costs and Estimated Earnings In Excess of Billings On Uncompleted Contracts	12,256,456	14,038,161
Deferred Income Taxes	7,048,783	7,654,781
Prepaid Expenses and Other	4,780,366	2,811,858
Total Current Assets	252,131,631	302,735,899
Property, Plant and Equipment, Net	152,005,729	135,826,703
Goodwill	166,607,181	121,383,863
Intangibles and Other Assets, Net	103,719,991	46,828,100
Total Assets	674,464,532	606,774,565
Current Liabilities:
Accounts Payable	30,576,637	24,401,194
Income Tax Payables	377,029	998,496
Accrued Salaries and Wages	8,912,650	7,988,594
Other Accrued Liabilities	21,856,992	18,049,283
Customer Advance Payment	32,245,825	11,267,525
Long Term Debt Due Within One Year	14,285,714	14,285,714
Billings In Excess of Costs and Estimated Earnings On Uncompleted Contracts	1,237,978	987,771
Total Current Liabilities	109,492,825	77,978,577
Long Term Accrued Liabilities Due After One Year	8,748,481	0
Long-Term Debt Due After One Year	196,428,571	210,714,286
Deferred Income Taxes	32,426,015	30,472,937
Shareholders' Equity:
Common Stock, $1 Par Value, Shares Authorized 50,000,000 (23,376,967 Shares at November 30, 2012 and 25,218,320 Shares at February 29, 2012)	25,376,967	25,218,320
Capital In Excess of Par Value	17,295,689	14,200,811
Retained Earnings	284,412,072	247,059,938
Accumulated Other Comprehensive Income	283,912	1,303,974
Less Common Stock Held In Treasury, At Cost (0 Shares at November 30, 2012 and 53,090 Shares at February 29, 2012)	0	(174,278)
Total Shareholders' Equity	327,368,640	287,608,765
Total Liabilities and Shareholders' Equity	$ 674,464,532	$ 606,774,565