Quarterly report pursuant to Section 13 or 15(d)

Management's Liquidity Plans (Details Textual)

v2.4.1.9
Management's Liquidity Plans (Details Textual) (USD $)
1 Months Ended 3 Months Ended
Jan. 31, 2015
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Subsidiary, Sale of Stock [Line Items]        
Working Capital   $ 12,835,370cobu_WorkingCapital    
Stockholders' Equity Attributable to Parent   12,663,179us-gaap_StockholdersEquity   1,069,604us-gaap_StockholdersEquity
Net Loss   781,265us-gaap_NetIncomeLoss 254,410us-gaap_NetIncomeLoss  
Proceeds from Issuance of Common Stock 13,950,000us-gaap_ProceedsFromIssuanceOfCommonStock      
IPO [Member]        
Subsidiary, Sale of Stock [Line Items]        
Stock Issued During Period, Shares, New Issues 11,250,000us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_IPOMember
     
Share Price $ 1.00us-gaap_SharePrice
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_IPOMember
$ 1.00us-gaap_SharePrice
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_IPOMember
   
Stock Issued During Period, Value, New Issues 11,250,000us-gaap_StockIssuedDuringPeriodValueNewIssues
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_IPOMember
     
Private Placement [Member]        
Subsidiary, Sale of Stock [Line Items]        
Stock Issued During Period, Shares, New Issues 2,700,000us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_PrivatePlacementMember
     
Stock Issued During Period, Value, New Issues $ 2,700,000us-gaap_StockIssuedDuringPeriodValueNewIssues
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_PrivatePlacementMember