Note 5 - PNC Credit Facility (Details Textual)				1 Months Ended	3 Months Ended		6 Months Ended		9 Months Ended	12 Months Ended	30 Months Ended
	May 10, 2017 USD ($) $ / shares shares	Mar. 31, 2017 USD ($) $ / shares shares	Sep. 17, 2015 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2017 USD ($) $ / shares	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) $ / shares	Jun. 30, 2016 USD ($)	Sep. 30, 2014 USD ($)	Dec. 31, 2016 USD ($) $ / shares	Sep. 30, 2019
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares					$ 0.34		$ 0.34			$ 0.57
Long-term Debt					$ 454,815		$ 454,815			$ 622,872
Amortization of Debt Issuance Costs					37,000	$ 39,000	297,557	$ 74,694
Fair Value Hedging [Member] | Interest Rate Swap [Member]
Derivative, Notional Amount			$ 10,000,000
Derivative, Swaption Interest Rate			1.88%
Derivative Liability					72,000		72,000			91,000
Fair Value Hedging [Member] | Interest Rate Swap [Member] | Interest Expense [Member]
Unrealized Gain (Loss) on Derivatives					(11,000)	$ (74,000)	19,000	$ (172,000)
Prepaid Expenses and Other Current Assets [Member]
Unamortized Debt Issuance Expense					147,000		147,000			171,000
Other Assets [Member]
Unamortized Debt Issuance Expense					$ 51,000		$ 51,000			$ 259,000
Cross River Partners, L.P. [Member]
Proceeds from Issuance of Subordinated Long-term Debt	$ 1,000,000
Class of Warrant or Right, Expiration Period	5 years
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares	645,161
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 0.31
Subordinated Debt [Member]
Debt Instrument, Interest Rate, Stated Percentage		10.00%
Subordinated Debt [Member] | Cross River Partners, L.P. [Member]
Debt Instrument, Interest Rate, Stated Percentage	10.00%
Two Thousand Fourteen Credit Agreement [Member]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage									0.375%
Two Thousand Fourteen Credit Agreement [Member] | Warrants Purchased in Credit Agreement [Member]
Class of Warrant or Right, Expiration Period		5 years
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares		967,741
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares		$ 0.31
Two Thousand Fourteen Credit Agreement [Member] | Domestic Rate Loans [Member]
Debt Instrument, Interest Rate, Effective Percentage					7.25%		7.25%			6.75%
Long-term Debt					$ 1,900,000		$ 1,900,000			$ 1,900,000
Two Thousand Fourteen Credit Agreement [Member] | LIBOR Based Loans [Member]
Long-term Debt					18,500,000		$ 18,500,000			$ 21,300,000
Two Thousand Fourteen Credit Agreement [Member] | Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate			4.50%				5.55%		4.50%	5.21%
Two Thousand Fourteen Credit Agreement [Member] | Minimum [Member] | Base Rate [Member] | Domestic Rate Loans [Member]
Debt Instrument, Basis Spread on Variable Rate			4.50%						3.00%
Two Thousand Fourteen Credit Agreement [Member] | Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate			5.50%				5.72%		5.50%	5.27%
Two Thousand Fourteen Credit Agreement [Member] | Maximum [Member] | Base Rate [Member] | Domestic Rate Loans [Member]
Debt Instrument, Basis Spread on Variable Rate			5.50%						4.00%
Two Thousand Fourteen Credit Agreement [Member] | Revolving Credit Facility [Member]
Line of Credit Facility, Remaining Borrowing Capacity					1,500,000		$ 1,500,000			$ 4,500,000
Debt Instrument, Required Funds to be Raised		$ 1,500,000
Debt Instrument, Letters of Credit Issued		1,500,000
Long-term Debt					20,400,000		20,400,000			$ 23,200,000
Amortization of Debt Issuance Costs Due to Change in Maturity Date							217,000
Unamortized Debt Issuance Expense					$ 197,000		$ 197,000
Debt Instrument, Term				5 years
Line of Credit Facility, Maximum Borrowing Capacity				$ 30,000,000					$ 30,000,000
Line of Credit Facility Limitation on Borrowings Percentage of Eligible Receivables				85.00%					85.00%
Line of Credit Facility Limitation on Borrowings Percentage of Appraised Value of Trucks and Equipment				75.00%					75.00%
Two Thousand Fourteen Credit Agreement [Member] | Revolving Credit Facility [Member] | Scenario, Forecast [Member]
Debt Covenant, Minimum Fixed Charge Coverage Ratio											1.25
Two Thousand Fourteen Credit Agreement [Member] | Revolving Credit Facility [Member] | Subordinated Debt [Member]
Debt Instrument, Required Additional Funds to be Raised		$ 1,000,000