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Condensed Consolidated Statements of Partners' Capital (Unaudited) - USD ($)
$ in Thousands
Total
AOCI Attributable to Parent [Member]
General Partner [Member]
Limited Partner [Member]
Partners' capital at Dec. 31, 2015 $ 38,721 $ (321) $ 39,042  
Proceeds from sale of general partner interest 224   224  
Partner's capital issued for cash  
Allocation of net loss:        
Allocation of net loss (1,126)   (1,126)  
Accumulated other comprehensive income        
Change in pension and severance 4 4    
Partners' capital at Jun. 30, 2016 37,823 (317) 38,140  
Partners' capital at Mar. 31, 2016 38,094 (319) 38,413  
Proceeds from sale of general partner interest 224   224  
Partner's capital issued for cash  
Allocation of net loss:        
Allocation of net loss (497)   (497)  
Accumulated other comprehensive income        
Change in pension and severance 2 2    
Partners' capital at Jun. 30, 2016 37,823 (317) 38,140  
Partners' capital at Dec. 31, 2016 37,042 (228) 37,270  
Proceeds from sale of general partner interest    
Partner's capital issued for cash 19,856   201 19,655
Allocation of net loss:        
Allocation of net loss (968)   (968)  
Accumulated other comprehensive income        
Change in pension and severance    
Partners' capital at Jun. 30, 2017 55,930 (228) 56,158  
Partners' capital at Mar. 31, 2017 36,659 (228) 36,887  
Proceeds from sale of general partner interest    
Partner's capital issued for cash 19,856   201 $ 19,655
Allocation of net loss:        
Allocation of net loss (585)   (585)  
Accumulated other comprehensive income        
Change in pension and severance    
Partners' capital at Jun. 30, 2017 $ 55,930 $ (228) $ 56,158