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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Cash flows from operating activities:    
Net income $ 2,200 $ 2,414
Depreciation and amortization 909 886
Deferred income taxes (28) (101)
Other, net 58 80
Change in assets and liabilities:    
Accounts receivable, net (3,121) (3,427)
Inventories, net 627 (34)
Accounts payable and accrued liabilities (3,066) (3,537)
Accounts with affiliates 648 688
Prepaids and other, net (675) 26
Net cash used by operating activities (2,448) (3,005)
Cash flows from investing activities -    
Capital expenditures (1,221) (790)
Cash flows from financing activities -    
Dividends paid (620) (620)
Cash and cash equivalents - net change from:    
Operating, investing and financing activities (4,289) (4,415)
Balance at beginning of period 52,347 45,570
Balance at end of period 48,058 41,155
Supplemental disclosures - cash paid for:    
Income taxes $ 565 $ 701