Note 14 - Share-based Compensation (Tables)

6 Months Ended

Nov. 30, 2015

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 (years)		Aggregate Intrinsic Value (1)
Service-based options outstanding at May 31, 2015		158,329		$	100.00
Granted		528,072			100.00
Exercised		-			-
Forfeited		(16,386	)		100.00
Expired or cancelled		(730	)		100.00
Service-based options outstanding at November 30, 2015		669,285			100.00		8.3	$	-
Exercisable at November 30, 2015		142,163		$	100.00		6.5	$	-

	Number of Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (years)		Aggregate Intrinsic Value (1)
Performance or market-based options outstanding at May 31, 2015		149,329		$	100.00
Granted		6,538			100.00
Exercised		-			-
Forfeited		(20,183	)		100.00
Expired or cancelled		(101,027	)		100.00
Performance or market-based options outstanding at November 30, 2015		34,657			100.00		6.1	$	-
Exercisable at November 30, 2015		34,657		$	100.00		6.1	$	-

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

	Number of Shares		Weighted-Average Grant-Date Fair Value
Nonvested restricted stock units outstanding at May 31, 2015		2,400	$	84.55
Granted		34,566		104.24
Vested		-		-
Forfeited		-		-
Nonvested restricted stock units outstanding at November 30, 2015		36,966	$	102.98

	Number of Shares			Weighted-Average Grant-Date Fair Value
Stock appreciation rights outstanding at May 31, 2015		167,000		$	1.98
Granted		3,000			1.98
Vested		-			-
Forfeited		(2,600	)		1.98
Cancelled/Expired		(167,400	)		1.98
Stock appreciation rights outstanding at November 30, 2015		-		$	-