Quarterly report pursuant to Section 13 or 15(d)

Note 6 - Commitments and Contingencies (Details Textual)

v3.7.0.1
Note 6 - Commitments and Contingencies (Details Textual)
3 Months Ended
Feb. 01, 2017
USD ($)
a
$ / item
Mar. 31, 2017
USD ($)
Mar. 31, 2016
USD ($)
Operating Leases, Rent Expense | $   $ 73,000 $ 55,000
Sublease Agreement for Relocation of Headquarters [Member]      
Area of Real Estate Property | a 12,400    
Operating Leases of Lessee, Period Following Delivery of Possession Triggering Commencement 120 days    
Lessee, Operating Lease, Term of Contract 3 years    
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