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SUPPLEMENTAL CASH FLOW INFORMATION
 6 Months Ended
Jun. 30, 2019
SUPPLEMENTAL CASH FLOW INFORMATION [Abstract]  
SUPPLEMENTAL CASH FLOW INFORMATION

12.   SUPPLEMENTAL CASH FLOW INFORMATION



Supplemental cash flow information for the six months ended June 30, 2019 and 2018 is as follows:







 

 

 

 

($ in thousands)

 

2019

 

2018



 

 

 

 

Interest paid

$

 82 

$

 93 



 

 

 

 

Federal, state, and local income taxes paid (refund), net

$

 5,326 

$

 (234)



 

 

 

 

Change in contract receivables, net

$

 (1,959)

$

 (8,634)



 

 

 

 

Change in contract liabilities, net

$

 1,959 

$

 8,634 



 

 

 

 

Property, plant, and equipment purchases in accounts payable

$

 741 

$

 170