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Marketable Equity Securities (Details Narrative) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2017
May 02, 2016
Notes to Financial Statements    
Purchase of Vendetta Units - shares   7,240,000
Aggregate consideration for shares of Vendetta; purchase cost of shares of $186,000; purchase cost of warrants $103,000   $ 289,000
Shares of Vendetta sold 1,480,000  
Proceeds from sale of Vendetta Shares $ 259  
Gain on sale of Vendetta Shares $ 221  
Shares of Vendetta Warrants exercised and received 2,240,000  
Payment to Vendetta for Warrants (Cdn$224,000) $ 167  
Intrinsic value of Vendetta Warrants 309  
Total value Vendetta Warrants exercised $ 476  
Shares owned of Vendetta 8,000,000