Annual report pursuant to Section 13 and 15(d)

Note 8 - Commitments and Contingencies (Details Textual)

v3.19.1
Note 8 - Commitments and Contingencies (Details Textual)
1 Months Ended 12 Months Ended
Sep. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Feb. 01, 2017
USD ($)
ft²
$ / item
Operating Leases, Rent Expense, Total   $ 358,000 $ 442,000  
Sublease Agreement for Relocation of Headquarters [Member]        
Area of Real Estate Property | ft²       12,400
Operating Leases, Monthly Rent Per Rentable Square Foot During First Year | $ / item       20.5
Operating Leases, Monthly Rent Per Rentable Square Foot During Second Year | $ / item       21.12
Operating Leases, Monthly Rent Per Rentable Square Foot During Third Year | $ / item       21.75
Security Deposit       $ 22,000
Operating Leases, Allowance for Certain Improvements       $ 88,000
Noncancelable Operating Lease Agreement for Office Equipment [Member]        
Lessee, Operating Lease, Term of Contract 3 years      
Operating Leases, Monthly Payment $ 3,000