Annual report pursuant to Section 13 and 15(d)

Shareholders' Equity and Capital Stock - Non-compensation transactions (Details)

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Shareholders' Equity and Capital Stock - Non-compensation transactions (Details) - USD ($)
1 Months Ended 12 Months Ended
Feb. 29, 2016
Dec. 31, 2017
Dec. 31, 2016
Aug. 19, 2014
Shareholders' Equity and Capital Stock [Abstract]        
Stock Issued During Period, Value, New Issues   $ 1,076,000 $ 5,684,000  
Shares Authorized Value       $ 100,000,000
Proceeds from Issuance or Sale of Equity $ 5,700,000 1,200,000 $ 108,000  
Sale of Stock, Number of Shares Issued in Transaction 12,921,000   164,979  
Stock issuance costs $ 800,000 $ 93,000 $ 884,000  
Sale of Stock, Price Per Share $ 0.50   $ 0.65