Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Commitments and Contingencies (Details Textual)

v3.10.0.1
Note 7 - Commitments and Contingencies (Details Textual)
1 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2018
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2017
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2017
USD ($)
Feb. 01, 2017
USD ($)
ft²
$ / item
Operating Leases, Rent Expense, Total   $ 65,000 $ 138,000 $ 293,000 $ 305,000  
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 3 years   3 years    
Operating Leases, Monthly Payment $ 2,600