Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information - shares
6 Months Ended
Jun. 30, 2018
Aug. 14, 2018
Document and Entity Information:    
Registrant CIK 0000726293  
SEC Form 10-Q  
Period End date Jun. 30, 2018  
Fiscal Year End --12-31  
Trading Symbol nbgv  
Tax Identification Number (TIN) 841089377  
Number of common stock shares outstanding   57,113,555
Filer Category Smaller Reporting Company  
Current with reporting Yes  
Voluntary filer No  
Well-known Seasoned Issuer No  
Amendment Flag false  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q2  
Contained File Information, File Number 0-11730  
Entity Incorporation, State Country Name Delaware  
Entity Address, Address Line One 626 East 1820 North  
Entity Address, City or Town Orem  
Entity Address, State or Province Utah  
Entity Address, Postal Zip Code 84097  
City Area Code 801  
Local Phone Number 592-3000