Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details Textual)

v3.19.1
Income Taxes (Details Textual) - USD ($)
 3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2018
Dec. 31, 2017
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2018
Income Tax Contingency [Line Items]              
Statutory federal income tax rate 21.00% 34.00%       21.00% 30.80%
Deferred Tax Assets, Valuation Allowance $ 37,103,000         $ 38,771,000 $ 37,103,000
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount           1,700,000  
Income Tax Expense (Benefit)           39,000 (597,000)
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense           2,500 2,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued $ 15,300         17,800 15,300
Federal [Member]              
Income Tax Contingency [Line Items]              
Tax Credit Carryforward, Amount           800,000  
Operating Loss Carryforwards           26,900,000  
State and Local Jurisdiction [Member]              
Income Tax Contingency [Line Items]              
Tax Credit Carryforward, Amount           100,000  
Income Tax Expense (Benefit)           23,000 $ 54,000
Operating Loss Carryforwards           8,100,000  
expiration net operating loss carryforward           $ 1,200,000  
Subsequent Event [Member]              
Income Tax Contingency [Line Items]              
Other Tax Carryforward, Expiration Dates       Mar. 31, 2021      
Subsequent Event [Member] | Minimum [Member] | Federal [Member]              
Income Tax Contingency [Line Items]              
Operating Loss Carryforwards, Expiration Date     Mar. 31, 2022        
Subsequent Event [Member] | Minimum [Member] | State and Local Jurisdiction [Member]              
Income Tax Contingency [Line Items]              
Other Tax Carryforward, Expiration Dates         Mar. 31, 2020    
Operating Loss Carryforwards, Expiration Date         Mar. 31, 2020