Annual report pursuant to Section 13 and 15(d)

Note 10 - Share-based Compensation (Details Textual)

v3.10.0.1
Note 10 - Share-based Compensation (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
11 Months Ended 12 Months Ended
Nov. 30, 2015
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Allocated Share-based Compensation Expense, Total   $ 1,000 $ 1,300 $ 2,400
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense   $ 500 $ 500 $ 800
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross   19,482    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Contractual Term   10 years    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term   2 years 328 days    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance   561,595 836,020  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value   $ 6.93 $ 8.30 $ 11.53
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value   $ 100 $ 800 $ 300
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total   $ 300    
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition   1 year 146 days    
Independent Directors [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term   3 years    
Certain Executives Not Including Chief Executive Officer [Member]        
Vesting Condition, Cumulative Compound Growth Rate   5.00%    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number     196,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance     130,000  
Stock Appreciation Rights (SARs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross   0    
Restricted Stock Units (RSUs) [Member]        
Allocated Share-based Compensation Expense, Total   $ 537 $ 806  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total   $ 600    
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition   1 year    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 0 162,500    
Restricted Stock [Member]        
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total   $ 0    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period   16,234    
Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term   5 years    
Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term   3 years    
Stock Option Plan 1992 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant   1,447,639    
Stock Option Plan 1992 [Member] | Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant   6,487,867