General form of registration statement for all companies including face-amount certificate companies

Note 2 - Significant Accounting Policies and Basis of Presentation (Details Textual)

v3.19.2
Note 2 - Significant Accounting Policies and Basis of Presentation (Details Textual) - USD ($)
shares in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Dec. 31, 2017
Jan. 01, 2019
Cost Reimbursements from SBIR Grant as Offset to Research and Development Expenses $ 95,000 $ 84,000 $ 538,000 $ 41,000  
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 0.7 0.5 0.6 0.5  
Accounting Standards Update 2016-02 [Member]          
Operating Lease, Right-of-Use Asset         $ 53,000
Operating Lease, Liability, Total         75,700
Accounting Standards Update 2016-02 [Member] | Subsequent Event [Member]          
Operating Lease, Right-of-Use Asset         50,000
Operating Lease, Liability, Total         $ 75,000