Note 1 - Summary of Significant Accounting Policies (Details Textual) (USD $)	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Accounts Receivable Payment Terms	30 days
Warranty Term on Ground Equipment Products	3 years
Overnight Air Cargo [Member]
Number of Major Customers	1
Cargo and Freight Revenue	$ 32,672,000	$ 33,076,000
Computer Equipment [Member]
Property, Plant and Equipment, Useful Life	3 years
Flight Equipment [Member]
Property, Plant and Equipment, Useful Life	7 years
Equipment Leased to Other Party [Member]
Property, Plant and Equipment, Useful Life	10 years