Note 11 - Segment Information - Segment Data (Details) - USD ($)	3 Months Ended
Jun. 30, 2016	Jun. 30, 2015
Revenues	$ 30,493,253	$ 22,358,520
Operating Income (Loss)	(7,073,482)	(1,049,099)
Capital Expenditures	519,569	219,496
Depreciation and Amortization	605,081	178,617
Corporate, Non-Segment [Member]
Revenues	281,926	265,209
Operating Income (Loss)	(931,837)	(100,029)
Capital Expenditures	388,635
Depreciation and Amortization	30,743	7,473
Intersegment Eliminations [Member]
Revenues	(3,348,426)	(265,209)
Operating Income (Loss)	(524,989)
Capital Expenditures	(3,066,500)
Depreciation and Amortization	(14,351)
Overnight Air Cargo [Member]
Revenues	16,637,165	12,889,190
Overnight Air Cargo [Member] \| Operating Segments [Member]
Revenues	16,637,165	12,889,190
Operating Income (Loss)	979,177	(94,443)
Capital Expenditures		24,325
Depreciation and Amortization	29,209	34,472
Ground Equipment Sales [Member]
Revenues	4,254,188	4,039,237
Ground Equipment Sales [Member] \| Operating Segments [Member]
Revenues	6,670,688	4,039,237
Operating Income (Loss)	342,320	(519,171)
Capital Expenditures	19,596	125,770
Depreciation and Amortization	47,594	95,440
Ground Equipment Sales [Member] \| Operating Segments [Member] \| Domestic [Member]
Revenues	5,386,069	1,978,029
Ground Equipment Sales [Member] \| Operating Segments [Member] \| International [Member]
Revenues	1,284,619	2,061,208
Ground Support Services [Member]
Revenues	6,800,042	5,430,093
Ground Support Services [Member] \| Operating Segments [Member]
Revenues	6,800,042	5,430,093
Operating Income (Loss)	(110,052)	(335,456)
Capital Expenditures	101,411	69,401
Depreciation and Amortization	83,436	41,232
Printing Equipment and Maintenance [Member]
Revenues	2,560,088
Printing Equipment and Maintenance [Member] \| Operating Segments [Member]
Revenues	3,210,088
Operating Income (Loss)	(6,935,359)
Capital Expenditures	9,927
Depreciation and Amortization	296,081
Printing Equipment and Maintenance [Member] \| Operating Segments [Member] \| Domestic [Member]
Revenues	2,232,706
Printing Equipment and Maintenance [Member] \| Operating Segments [Member] \| International [Member]
Revenues	977,382
Leasing [Member]
Revenues	241,770
Leasing [Member] \| Operating Segments [Member]
Revenues	241,770
Operating Income (Loss)	107,258
Capital Expenditures	3,066,500
Depreciation and Amortization	$ 132,369

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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