Private Placement (Details Textual) - Subsequent Event [Member] $ / shares in Units, $ in Millions  | 
 Aug. 01, 2017  
USD ($)  
$ / shares  
shares 
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| Sale of Stock, Price Per Share | $ 10.20 | 
| Private Placement [Member] | |
| Number Of Warrants Issued | shares | 11,100,000 | 
| Sale of Stock, Price Per Share | $ 1.00 | 
| Proceeds from Issuance of Warrants | $ | $ 11.1 | 
| Class of Warrant or Right, Exercise Price of Warrants or Rights | $ 11.50 | 
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- Definition The total number of warrants issued during the period. No definition available. 
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- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt). Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. No definition available. 
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- Details 
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- Details 
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