Note 2 - Acquisitions (Details Textual)				9 Months Ended
	Oct. 03, 2016 USD ($) a	Jul. 18, 2016 USD ($)	Nov. 24, 2015 USD ($) $ / shares shares	Dec. 31, 2016 USD ($)	Sep. 01, 2016	Mar. 31, 2016 USD ($)
Goodwill				$ 4,185,265		$ 275,408
Preferred Stock, Liquidation Preference Per Share | $ / shares			$ 0
Preferred Stock, Dividend Rate, Percentage			0.00%
Deferred Tax Assets, Net of Valuation Allowance, Current				71,126		$ 291,000
Delphax [Member]
Payments to Acquire Businesses, Gross			$ 1,050,000
Business Combination, Warrants Acquired, Condition Under Which Warrants May Be Exercised for Cash, Number of Times the Aggregate Exercise Price			0.95
Business Combination, Warrants Acquired, Exercise for Cash, Measurement Period			20 days
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt			$ 3,313,317
Business Acquisition, Percentage of Voting Interests Acquired			38.00%
Goodwill			$ 375,408
Delphax [Member] | Series B Preferred Stock of Delphax [Member]
Business Combination, Shares Acquired | shares			43,000
Business Combination, Warrants Acquired, Number of Securities Called by Warrants | shares			95,600
Business Combination, Warrants Acquired, Exercise Price Per Share | $ / shares			$ 33.4728
Convertible Preferred Stock, Shares Issued upon Conversion | shares			100
Business Combination,Shares Acquired, Percentage, of the Shares of Acquired Entity's Common Stock That Would Be Outstanding Assuming Conversion			38.00%
Business Combination, Shares Acquired, Percentage of the Shares of Acquired Entity's Common Stock that Would Be Outstanding Assuming Conversion and Issuance of All Shares Reserved for Issuance Under Employee Stock Option Plans			31.00%
Percentage of Preferred Stock Initially Purchasable under Warrant Permitted to Acquire			50.00%
Shares of Preferred Stock Acquired in Connection With the Exercise of the Warrant as a Percentage of the Number of Preferred Shares Initially Purchasable under the Warrant			50.00%
Contrail Aviation Inc. [Member]
Goodwill		$ 3,986,865
Contrail Aviation Inc. [Member] | Contrail Aviation Support LLC. [Member]
Payments to Acquire Businesses, Gross		$ 4,033,368
Business combination, Equity Interests in Acquiree, Percentage		21.00%
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value High, Per Year		$ 1,500,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High		3,000,000
Amortization of Intangible Assets				60,000
Contrail Aviation Inc. [Member] | Contrail Aviation Support LLC. [Member] | EBITDA Range 1 [Member]
Business Combination, Contingent Consideration Arrangement, Earnout Payment		0
Contrail Aviation Inc. [Member] | Contrail Aviation Support LLC. [Member] | EBITDA Range 1 [Member] | Maximum [Member]
Business Combination, Contingent Consideration Arrangements, EBITDA Threshold		1,500,000
Contrail Aviation Inc. [Member] | Contrail Aviation Support LLC. [Member] | EBITDA Range 2 [Member]
Business Combination, Contingent Consideration Arrangements, EBITDA Threshold		$ 1,500,000
Business Combination, Contingent Consideration Arrangement, Earnout Payment Calculation, Multiplier		2
Contrail Aviation Inc. [Member] | Contrail Aviation Support LLC. [Member] | EBITDA Range 2 [Member] | Maximum [Member]
Business Combination, Contingent Consideration Arrangements, EBITDA Threshold		$ 2,000,000
Contrail Aviation Inc. [Member] | Contrail Aviation Support LLC. [Member] | EBITDA Range 2 [Member] | Minimum [Member]
Business Combination, Contingent Consideration Arrangements, EBITDA Threshold		1,500,000
Contrail Aviation Inc. [Member] | Contrail Aviation Support LLC. [Member] | EBITDA Range 3 [Member]
Business Combination, Contingent Consideration Arrangement, Earnout Payment		1,000,000
Contrail Aviation Inc. [Member] | Contrail Aviation Support LLC. [Member] | EBITDA Range 3 [Member] | Maximum [Member]
Business Combination, Contingent Consideration Arrangements, EBITDA Threshold		4,000,000
Contrail Aviation Inc. [Member] | Contrail Aviation Support LLC. [Member] | EBITDA Range 3 [Member] | Minimum [Member]
Business Combination, Contingent Consideration Arrangements, EBITDA Threshold		2,000,000
Contrail Aviation Inc. [Member] | Contrail Aviation Support LLC. [Member] | EBITDA Range 4 [Member]
Business Combination, Contingent Consideration Arrangements, EBITDA Threshold		1,500,000
Contrail Aviation Inc. [Member] | Contrail Aviation Support LLC. [Member] | EBITDA Range 4 [Member] | Minimum [Member]
Business Combination, Contingent Consideration Arrangements, EBITDA Threshold		4,000,000
Contrail Aviation Inc. [Member] | Contrail Aviation Support LLC. [Member] | EBITDA Range 5 [Member]
Business Combination, Contingent Consideration Arrangement, Earnout Payment		3,000,000
Contrail Aviation Inc. [Member] | Contrail Aviation Support LLC. [Member] | EBITDA Range 5 [Member] | Minimum [Member]
Business Combination, Contingent Consideration Arrangements, EBITDA Threshold		$ 15,000,000
Jet Yard, LLC [Member] | Global Aviation Partners LLC [Member]
Payments to Acquire Businesses, Gross	$ 15,000
Business Acquisition, Percentage of Voting Interests Acquired	100.00%
Jet Yard, LLC [Member] | Global Aviation Partners LLC [Member] | Lease Contract with Pinal Country, Arizona [Member]
Area of Total Facility | a	48.5
Lessee Leasing Arrangements, Operating Leases, Renewal Term	30 years
Area of Lease Facility | a	2.6
Operating Lease, Lessee, Initial Annual Rent, Amount	$ 27,000
Operating Lease, Lessee, Annual Rent, After Annual Increments, Amount	$ 152,000
Operating Lease, Lessee, Annual Rent, Increase Percentage	5.00%
Operating Lease, Lessee, Annual Rent Increase, Incremental Period	3 years
Jet Yard, LLC [Member] | Global Aviation Partners Llc and Global Aviation Service [Member]
Payments to Acquire Businesses, Gross	$ 400,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	100,000
Amortization of Intangible Assets				$ 5,000
Payments to Acquire Business, Additional Payment After Closing, Amount	100,000
Payments to Acquire Business, Final Payment, Payable	100,000
Payments to Acquire Business, Final Payment, Payable, Monthly Installments, Amount	16,667
Business Combination, Consideration Transferred	700,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Tangible Assets	200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	300,000
Goodwill	200,000
Business Combination, Consideration Transferred, Liabilities Incurred	0
Deferred Tax Assets, Net of Valuation Allowance, Current	$ 0
Five Year Senior Subordinated Promissory Note [Member] | Delphax [Member]
Debt Instrument, Face Amount			$ 2,500,000
Debt Instrument, Interest Rate, Stated Percentage			8.50%		10.50%
Delphax 90-Day Senior Subordinated Note [Member] | Delphax [Member]
Debt Instrument, Cancellation, Outstanding Principal Surrendered			$ 500,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt			$ 508,000