Quarterly report pursuant to Section 13 or 15(d)

Note 9 - Income Taxes (Details Textual)

v3.8.0.1
Note 9 - Income Taxes (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Mar. 31, 2018
Mar. 31, 2017
Sep. 30, 2017
Income Tax Expense (Benefit), Total $ (101,000) $ 433,000 $ (304,000) $ 800,000  
Effective Income Tax Rate Reconciliation, Percent, Total 24.90% 32.30% (91.10%) 31.00%  
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability     $ (384,000)    
Unrecognized Tax Benefits, Ending Balance $ 0   0    
State and Local Jurisdiction [Member]          
Operating Loss Carryforwards, Valuation Allowance, Total $ 191,000   191,000   $ 159,000
State and Local Jurisdiction [Member] | Deferred Tax Assets Related to Operating Loss Carryforwards [Member]          
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount     $ 32,000