Annual report pursuant to Section 13 and 15(d)

Concentrations (Details)

v3.3.1.900
Concentrations (Details)
12 Months Ended
Jan. 28, 2016
Jan. 31, 2015
Jan. 28, 2015
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Percentage of Capacity       66.00% 19.00% 10.00%
Revenue related to the DOD contract       89.00% 88.00% 80.00%
Percentage of amounts due from the department of defense in relation to consolidated accounts receivable       10.00% 25.00%  
Percentage of payment to supplier of natural gas in relation to cost of sales       91.00% 64.00% 41.00%
Department of Defense [Member] | Omega [Member]            
Natural gas distribution agreement   10 years 6 months      
Potential natural gas distribution agreement       10 years    
Subsequent Event [Member] | Department of Defense [Member] | Omega [Member]            
Natural gas distribution agreement 10 years          
Mogas [Member]            
Percentage of Capacity       67.00% 19.00% 10.00%