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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Cash flows from operating activities:    
Net income $ 7,607 $ 7,465
Depreciation and amortization 2,790 2,646
Deferred income taxes (77) (279)
Other, net 348 285
Change in assets and liabilities:    
Accounts receivable, net (4,289) (2,881)
Inventories, net 280 1,246
Accounts payable and accrued liabilities 438 (1,600)
Accounts with affiliates 817 (143)
Prepaids and other, net 17 (60)
Net cash provided by operating activities 7,931 6,679
Cash flows from investing activities -    
Capital expenditures (2,344) (2,484)
Note receivable from affiliate:    
Collections 4,400  
Advances (15,100)  
Net cash used in investing activities (13,044) (2,484)
Cash flows from financing activities -    
Dividends paid (1,863) (1,861)
Cash and cash equivalents - net change from:    
Operating, investing and financing activities (6,976) 2,334
Balance at beginning of period 52,347 45,570
Balance at end of period 45,371 47,904
Supplemental disclosures - cash paid for:    
Income taxes $ 3,355 $ 4,424