Condensed Consolidated Statements of Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Operating Revenues:
Overnight air cargo	$ 12,062,070	$ 10,718,997	$ 35,228,575	$ 29,963,524
Ground equipment sales	10,940,354	10,036,373	26,285,380	20,980,186
Ground support services	2,647,621	1,558,320	6,158,505	6,564,539
	25,650,045	22,313,690	67,672,460	57,508,249
Operating Expenses:
Flight-air cargo	4,947,424	4,522,341	14,369,938	13,139,044
Maintenance-air cargo	5,533,222	4,632,982	15,781,339	12,244,359
Ground equipment sales	9,526,057	8,375,763	22,985,652	17,338,331
Ground support services	1,783,466	1,150,276	4,199,530	4,851,226
General and administrative	2,914,114	2,630,899	8,103,722	7,519,540
Depreciation and amortization	74,992	86,329	191,703	273,912
(Gain) on sale of equipment	(30,534)	(3,700)	(29,659)	(3,700)
	24,748,741	21,394,890	65,602,225	55,362,712
Operating Income	901,304	918,800	2,070,235	2,145,537
Non-operating Income (Expense):
Investment income	6,416	19,447	29,151	115,795
Interest expense and other	(992)	(728)	(1,786)	(2,083)
	5,424	18,719	27,365	113,712
Income Before Income Taxes	906,728	937,519	2,097,600	2,259,249
Income Taxes	328,000	339,000	758,000	816,000
Net Income	$ 578,728	$ 598,519	$ 1,339,600	$ 1,443,249
Earnings Per Share:
Basic (in Dollars per share)	$ 0.24	$ 0.25	$ 0.55	$ 0.59
Diluted (in Dollars per share)	$ 0.24	$ 0.24	$ 0.55	$ 0.58
Dividends Declared Per Share (in Dollars per share)			$ 0.25	$ 0.33
Weighted Average Shares Outstanding:
Basic (in Shares)	2,446,286	2,431,286	2,442,959	2,431,301
Diluted (in Shares)	2,446,286	2,452,589	2,447,440	2,468,496