XML 49 R39.htm IDEA: XBRL DOCUMENT v3.19.1
BENEFIT PLANS (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Dec. 31, 2018
Jan. 31, 2019
Jan. 31, 2018
Jan. 31, 2019
Jan. 31, 2018
Defined Benefit Plan Disclosure [Line Items]          
Share-based Compensation, Total       $ 184,000 $ 136,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total   $ 178,000   178,000  
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent   157,000 $ 225,000 471,000 674,000
Increase (Decrease) in Obligation, Pension Benefits       $ (2,000,000) (1,040,000)
Stock Issued During Period, Shares, Restricted Stock Award, Gross       29,200  
Non employee Individual of Board of Directors [Member]          
Defined Benefit Plan Disclosure [Line Items]          
Share-based Compensation, Total   20,000   $ 60,000  
Equity Plan [Member]          
Defined Benefit Plan Disclosure [Line Items]          
Share-based Compensation, Total   $ 43,000 31,000 $ 124,000 $ 76,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period       16,583  
Two Thousand Six Equity Plan [Member]          
Defined Benefit Plan Disclosure [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number   47,367   47,367  
Two Thousands And Sixteen Equity Plan [Member] | Board of Directors Chairman [Member]          
Defined Benefit Plan Disclosure [Line Items]          
Shares Issued, Price Per Share $ 5.95        
Non Cash Director Compensation     $ 20,000    
Stock Issued During Period, Shares, Restricted Stock Award, Gross 13,444