Note 5 - Stockholders' Equity (Tables)

9 Months Ended

Mar. 31, 2016

Notes Tables

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	Number of Shares			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Life		Aggregate Intrinsic Value
Outstanding at June 30, 2015		147,609		$	25.51
Granted		44,075		$	11.37
Forfeited		(75,981	)	$	26.44
Expired		(5,251	)	$	41.47
Outstanding at March 31, 2016		110,452		$	18.47		5.8		--
Vested and Expected to Vest at March 31, 2016		96,809		$	19.21		5.7		--
Exercisable at March 31, 2016		61,443		$	22.12		5.4		--

Schedule of Assumptions Used [Table Text Block]

Expected life (years)	5
Risk-free interest rate	1.5	%
Expected volatility	79	%
Dividend yield	0	%

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

				Weighted Average
	Number of Shares			Grant Date Fair Value
Balance at June 30, 2015		72,589		$	22.40
Granted		--
Vested		(3,367	)	$	30.33
Forfeited		(12,902	)	$	41.26
Outstanding at March 31, 2016		56,320		$	17.66

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

	Number of Shares			Weighted- Average Exercise Price Per Share
Beginning balance		252,620		$	44.18
Warrants granted		5,238,971		$	9.83
Warrants canceled		(611,156	)	$	17.21
Warrants exercised		(51,712	)	$	13.60
Outstanding at March 31, 2016		4,828,723		$	9.37
Exercisable at March 31, 2016		600,782		$	19.02

Schedule of Changes in Additional Paid In Capital [Table Text Block]

Balance – June 30, 2015	$	172,579
Discount due to beneficial conversion features		7,262
Discount due to warrants		4,434
Issuance of common shares and warrants in private placement		2,462
Issuance of common shares for exercise of Series B Warrants		1,092
Stock-based compensation expense, net of stock surrenders		546
Shares issued and adjustments related to reverse split		5
Balance – March 31, 2016	$	188,380