Annual report pursuant to Section 13 and 15(d)

Nature of Business and Summary of Significant Accounting Policies Cumulative Effect of Accounting Standards Adoption (Details)

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Nature of Business and Summary of Significant Accounting Policies Cumulative Effect of Accounting Standards Adoption (Details) - USD ($)
Dec. 31, 2019
Jan. 01, 2019
Dec. 31, 2018
Dec. 31, 2017
Jan. 01, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Operating lease, liability $ 2,174,000        
Restructuring Reserve 0   $ 218,000 $ 194,000 $ 0
Total property, plant & equipment, net 596,000 $ 669,000 545,000    
Right of use assets – operating leases 1,746,000 1,367,000 0    
Accounts payable and other accrued liabilities 2,816,000 2,627,000 2,838,000    
Operating lease, liability, current 587,000 759,000 0    
Deferred rent 0 0 45,000    
Operating lease, liability, noncurrent 1,587,000 1,100,000 0    
Deferred rent, non-current 0 0 302,000    
Accumulated deficit $ (65,128,000) (58,685,000) $ (58,875,000)    
Accounting Standards Update 2016-02          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Operating lease, liability   1,900,000      
Adoption of ASC Topic 842   190,000      
Right of use assets – operating leases   1,400,000      
Operating lease, liability, current   759,000      
Operating lease, liability, noncurrent   1,100,000      
Scenario, Adjustment | Accounting Standards Update 2016-02          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Total property, plant & equipment, net   124,000      
Right of use assets – operating leases   1,367,000      
Accounts payable and other accrued liabilities   (211,000)      
Operating lease, liability, current   759,000      
Deferred rent   (45,000)      
Operating lease, liability, noncurrent   1,100,000      
Deferred rent, non-current   (302,000)      
Accumulated deficit   $ 190,000