Note 21 - Segment Information - Segment Data (Details) - USD ($)	3 Months Ended												12 Months Ended
	Mar. 31, 2016	[1]	Dec. 31, 2015	[1]	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	[1]	Dec. 31, 2014	[1]	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2016		Mar. 31, 2015
Revenues	$ 34,581,000		$ 46,619,000		$ 44,654,000	$ 22,359,000	$ 24,885,000		$ 30,893,000		$ 34,625,000	$ 21,779,000	$ 148,211,938	[2]	$ 112,181,158
Operating Income (Loss)	$ (2,314,000)		$ 3,890,000		$ 5,505,000	$ (1,049,000)	$ (1,420,000)		$ 2,141,000		$ 2,597,000	$ 99,000	6,031,663	[2]	3,416,703
Capital Expenditures													1,246,071	[3]	799,666
Depreciation and Amortization													1,107,207		856,911
Corporate, Non-Segment [Member]
Operating Income (Loss)													(647,888)		(184,881)
Capital Expenditures													275,559		69,175
Depreciation and Amortization													53,060		28,340
Overnight Air Cargo [Member]
Revenues													68,226,891	[2]	49,864,547
Overnight Air Cargo [Member] | Operating Segments [Member]
Revenues													68,226,891		49,864,547
Operating Income (Loss)													3,283,495		19,519
Capital Expenditures													92,707		245,548
Depreciation and Amortization													138,639		158,179
Ground Equipment Sales [Member]
Revenues													51,175,818	[2]	41,770,395
Ground Equipment Sales [Member] | Operating Segments [Member]
Revenues													51,175,818		41,770,395
Operating Income (Loss)													6,390,287		3,674,598
Capital Expenditures													341,124		228,025
Depreciation and Amortization													518,013		502,648
Ground Equipment Sales [Member] | Operating Segments [Member] | Domestic [Member]
Revenues													45,175,818		33,231,529
Ground Equipment Sales [Member] | Operating Segments [Member] | International [Member]
Revenues													6,000,000		8,538,866
Ground Support Services [Member]
Revenues													24,834,616	[2]	20,546,216
Ground Support Services [Member] | Operating Segments [Member]
Revenues													24,834,616		20,546,216
Operating Income (Loss)													(1,035,929)		(92,532)
Capital Expenditures													520,243		256,918
Depreciation and Amortization													224,878		167,743
Printing Equipment and Maintenance [Member]
Revenues													3,954,797	[2]
Printing Equipment and Maintenance [Member] | Operating Segments [Member]
Revenues													3,954,797
Operating Income (Loss)													(1,966,626)
Capital Expenditures													16,438
Depreciation and Amortization													163,893
Printing Equipment and Maintenance [Member] | Operating Segments [Member] | Domestic [Member]
Revenues													2,753,138
Printing Equipment and Maintenance [Member] | Operating Segments [Member] | International [Member]
Revenues													1,201,659
Leasing [Member]
Revenues													19,816	[2]
Leasing [Member] | Operating Segments [Member]
Revenues													19,816
Operating Income (Loss)													8,324
Depreciation and Amortization													$ 8,724

[1] Results of operations for the third and fourth quarter of 2016 have been restated. See Note 1A.

[2] The Consolidated Statement of Comprehensive Income for the year ended March 31, 2016 has been restated. See Note 1A.

[3] The Consolidated Statement of Cash Flow for the year ended March 31, 2016 has been restated. See Note 1A.