Note 9 - Equity Compensation (Tables)

12 Months Ended

Jun. 30, 2018

Notes Tables

Stock Warrants, Valuation Assumptions [Table Text Block]

	February 21,
	2017
Dividend yield		2.01	%
Expected volatility		39	%
Risk-free interest rate		1.80	%
Expected life (in years)		4.5

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	2018			2017			2016
Dividend yield		3.3	%		1.9	%		1.3	%
Expected volatility		41	%		42	%		44	%
Risk-free interest rate		1.8	%		1.3	%		1.7	%
Expected life (in years)		6.0			6.0			6.0

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

	Twelve Months Ended June 30, 2018
						Weighted
				Weighted		Average
				Average		Remaining		Aggregate
				Exercise		Contractual Term		Intrinsic
	Shares			Price		(in years)		Value
Outstanding at 6/30/17		3,119,688		$	9.12		7.4	$	2,332,324
Granted		794,537		$	5.98
Exercised		(42,939	)	$	6.66
Forfeited		(467,609	)	$	9.11
Expired		(105,000	)	$	19.62
Outstanding at 6/30/18		3,298,677		$	8.06		7.0	$	8,037
Exercisable at 6/30/18		1,824,552		$	8.22		5.8	$	39,011

	Twelve Months Ended June 30, 2017
						Weighted
				Weighted		Average
				Average		Remaining		Aggregate
				Exercise		Contractual Term		Intrinsic
	Shares			Price		(in years)		Value
Outstanding at 6/30/16		2,976,490		$	8.97		6.6	$	8,338,974
Granted		1,332,623		$	10.59
Exercised		(486,446	)	$	7.37
Forfeited		(702,979	)	$	12.46
Outstanding at 6/30/17		3,119,688		$	9.12		7.4	$	2,332,324
Exercisable at 6/30/17		1,277,561		$	8.75		5.0	$	1,592,653

	Twelve Months Ended June 30, 2016
						Weighted
				Weighted		Average
				Average		Remaining		Aggregate
				Exercise		Contractual Term		Intrinsic
	Shares			Price		(in years)		Value
Outstanding at 6/30/15		2,677,436		$	8.85		6.1	$	4,914,601
Granted		1,026,800		$	9.39
Exercised		(561,946	)	$	7.34
Forfeited		(165,800	)	$	15.15
Outstanding at 6/30/16		2,976,490		$	8.97		6.6	$	8,338,974
Exercisable at 6/30/16		1,312,985		$	9.75		4.0	$	3,819,127

Schedule of Nonvested Share Activity [Table Text Block]

				Weighted-Average
				Grant Date
	Shares			Fair Value
Unvested at June 30, 2017		1,842,127		$	3.52
Granted		794,537		$	1.73
Vested		(942,905	)	$	3.39
Forfeited		(219,634	)	$	3.43
Unvested at June 30, 2018		1,474,125		$	2.65

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

				Weighted-Average
				Grant Date
	Shares			Fair Value
Unvested at June 30, 2017		133,335		$	10.38
Awarded		91,490		$	5.92
Vested		(43,803	)	$	10.32
Forfeited		(11,625	)	$	9.82
Unvested at June 30, 2018		169,397		$	8.03