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Note 9 - Debt (Details Textual) - USD ($) $ / shares in Units, $ in Thousands					1 Months Ended	8 Months Ended	12 Months Ended
	Oct. 23, 2018	Oct. 19, 2018	Sep. 07, 2018	Oct. 10, 2017	Jun. 30, 2016	Jun. 09, 2019	Sep. 30, 2018	Jun. 30, 2018	Sep. 30, 2017	Jun. 30, 2017	Dec. 14, 2016	Aug. 15, 2016
Long-term Debt, Gross							$ 3,944		$ 2,500
Proceeds from Issuance of Long-term Debt, Total							$ 953
Class of Warrant or Right, Number of Securities Called by Warrants or Rights							72,315		219,538
Class of Warrant or Right, Exercise Price of Warrants or Rights
Debt Instrument, Unamortized Discount, Total							$ 353
Interest Paid, Excluding Capitalized Interest, Operating Activities							250		128
Repayments of Debt							78
Subsequent Event [Member] \| Public Offering [Member]
Proceeds from Issuance or Sale of Equity, Total		$ 5,000
Warrants Issued as Consideration for Loan [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights				66,315
Class of Warrant or Right, Exercise Price of Warrants or Rights				$ 2.65
Equity Buy-out, First Tranche				$ 250
Promissory Term Notes [Member]
Long-term Debt, Gross			$ 941				941
Debt Instrument, Interest Rate, Stated Percentage			12.00%
Debt Instrument, Interest Rate, Discount Percentage			15.00%
Deb And Equity Financing Minimum Requirement			$ 3,000
Debt Instrument, Unamortized Discount, Total			141
Payments of Debt Issuance Costs			40
Proceeds from Debt, Net of Issuance Costs			$ 760
Promissory Term Notes [Member] \| Maximum [Member]
Debt Instrument, Term			180 days
Promissory Term Notes [Member] \| Subsequent Event [Member]
Interest Paid, Excluding Capitalized Interest, Operating Activities	$ 13
Repayments of Debt	$ 954
Non-Revolving Term Loan [Member]
Long-term Debt, Gross							922
Michael Taglich [Member]
Guaranty Agreement, Out of Formula Borrowings Available, Maximum							$ 1,500
Class of Warrant or Right, Exercise Price of Warrants or Rights							$ 20
Bridge Bank Loan Agreement [Member] \| Michael Taglich [Member]
Guaranty Agreement, Out of Formula Borrowings Available, Maximum							$ 1,500
Loan Agreement [Member] \| Non-Revolving Term Loan [Member]
Debt Instrument, Term				3 years
Debt Agreement Maximum Borrowing Capacity				$ 1,500
Proceeds from Issuance of Long-term Debt, Total				$ 1,000
Debt Instrument, Interest Rate, Stated Percentage				12.75%
Payments of Financing Costs, Total				$ 47
Debt Instrument, Monthly Payment, Principal, When First Tranche Received				$ 26
Ninth Promissory Note [Member]
Warrants Term				8 years
Heritage Agreement [Member]
Debt Instrument, Term					2 years
Line of Credit Facility, Commitment Fee Percentage								0.20%		0.40%
Line of Credit Facility, Maximum Borrowing Capacity					$ 2,500		2,500
Line of Credit Facility, Maximum Borrowing Capacity, Percentage of Eligible Receivables					75.00%
Guaranty Agreement, Out of Formula Borrowings Available, Maximum					$ 1,000
Long-term Line of Credit, Total							2,100		2,500
Long-term Debt, Gross							$ 2,081		$ 2,500
Heritage Agreement [Member] \| First Amendment [Member]
Line of Credit Facility, Maximum Borrowing Capacity					$ 3,000							$ 2,500
Heritage Agreement [Member] \| Second Amendment [Member]
Line of Credit, Minimum Cash Requirement in Lender Bank Account											$ 250
Heritage Agreement [Member] \| Wall Street Journal Prime Rate [Member]
Debt Instrument, Basis Spread on Variable Rate					1.75%		7.00%		6.00%
Heritage Agreement [Member] \| Scenario, Forecast [Member]
Line of Credit Facility, Annual Commitment Fee Amount, Thereafter						$ 6