Consolidated Statements of Income (USD $)	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Operating Revenues:
Revenues	$ 112,181,158	$ 100,772,045
Operating Expenses:
Flight-air cargo	22,219,794	20,679,970
Maintenance-air cargo	22,889,035	25,718,067
Ground equipment sales	31,949,363	24,580,644
Ground support services	17,495,471	13,588,522
General and administrative	14,222,996	12,843,507
Depreciation and amortization	856,911	752,412
Loss (gain) on sale of property and equipment	(869,116)	(23,617)
	108,764,455	98,139,505
Operating Income	3,416,703	2,632,540
Non-operating Income:
Gain on sale of marketable securities	8,487	10,954
Other investment income, net	(10,265)	15,142
	(1,778)	26,096
Income Before Income Taxes	3,414,926	2,658,636
Income Taxes	931,000	1,192,000
Net Income	2,483,926	1,466,636
Earnings Per Share:
Basic (in dollars per share)	$ 1.05	$ 0.61
Diluted (in dollars per share)	$ 1.04	$ 0.60
Dividends Declared Per Share (in dollars per share)		$ 0.30
Weighted Average Shares Outstanding:
Basic (in shares)	2,359,610	2,414,184
Diluted (in shares)	2,379,928	2,433,058
Overnight Air Cargo [Member]
Operating Revenues:
Revenues	49,864,547	52,341,439
Operating Expenses:
Depreciation and amortization	158,179	166,796
Operating Income	1,174,330	2,158,525
Ground Equipment Sales [Member]
Operating Revenues:
Revenues	41,770,395	31,510,192
Operating Expenses:
Depreciation and amortization	502,648	400,879
Operating Income	4,283,683	2,397,357
Ground Support Services [Member]
Operating Revenues:
Revenues	20,546,216	16,920,414
Operating Expenses:
Depreciation and amortization	167,743	134,663
Operating Income	$ 266,862	$ 1,085,103