XML 35 R20.htm IDEA: XBRL DOCUMENT v3.19.3
Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($)
Sep. 30, 2019
Jan. 01, 2019
Operating Lease, Liability, Total $ 997,000 $ 1,258,000
Operating Lease, Right-of-Use Asset $ 997,000 1,258,000
Accounting Standards Update 2016-02 [Member]    
Operating Lease, Liability, Total   1,258,000
Operating Lease, Right-of-Use Asset   $ 1,258,000