Condensed Consolidated Balance Sheets (USD $)	Nov. 30, 2013	Feb. 28, 2013
Current Assets:
Cash and Cash Equivalents	$ 50,947,249	$ 55,597,751
Accounts Receivable (Net of Allowance for Doubtful Accounts of $1,876,182 at November 30, 2013 and $1,000,000 at February 28, 2013)	129,340,830	97,857,193
Inventories:
Raw Material	63,492,747	47,189,162
Work-In-Process	39,594,154	32,040,915
Finished Goods	2,813,281	3,100,849
Costs and Estimated Earnings In Excess of Billings On Uncompleted Contracts	21,420,393	12,878,068
Deferred Income Taxes	9,474,271	7,615,525
Prepaid Expenses and Other	7,345,904	6,152,476
Total Current Assets	324,428,829	262,431,939
Property, Plant and Equipment, Net	198,103,382	154,476,220
Goodwill	281,711,232	171,886,270
Intangibles and Other Assets, Net	184,932,018	105,410,385
Total Assets	989,175,461	694,204,814
Current Liabilities:
Accounts Payable	40,912,686	28,921,539
Income Tax Payables	4,006,330	568,722
Accrued Salaries and Wages	14,169,463	11,013,779
Other Accrued Liabilities	20,444,277	14,811,126
Customer Advance Payment	37,902,908	39,168,672
Profit Sharing	6,299,439	8,360,000
Long Term Debt Due Within One Year	19,910,714	14,285,714
Billings In Excess of Costs and Estimated Earnings On Uncompleted Contracts	2,906,638	1,769,656
Total Current Liabilities	146,552,455	118,899,208
Long Term Accrued Liabilities Due After One Year	9,037,018	8,539,278
Long-Term Debt Due After One Year	416,642,857	196,428,571
Deferred Income Taxes	42,446,611	36,403,283
Shareholders' Equity:
Common Stock, $1 Par Value, Shares Authorized 100,000,000 (25,538,265 Shares at November 30, 2013 and 25,376,967 Shares at February 28, 2013)	25,538,265	25,376,967
Capital In Excess of Par Value	21,755,908	17,653,912
Retained Earnings	332,738,023	294,092,945
Accumulated Other Comprehensive Income	(5,535,676)	(3,189,350)
Total Shareholders' Equity	374,496,520	333,934,474
Total Liabilities and Shareholders' Equity	$ 989,175,461	$ 694,204,814