Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

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CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Cash flows from operating activities:    
Net loss $ (11,969) $ (15,069)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and lease asset amortization 6,463 7,264
Other amortization, net 48 37
Bad debt expense   59
Asset impairments   622
(Gain) loss on sale of assets held for sale, net 72 (369)
(Gain) loss on sale of fixed assets and other assets, net (5) (565)
Stock-based compensation expense 781 1,808
Changes in operating assets and liabilities:    
Contracts receivable and retainage, net 1,659 (7,822)
Contract assets (20,232) (20,873)
Prepaid expenses, inventory and other current assets 1,713 1,502
Accounts payable 18,900 29,244
Contract liabilities (6,094) (1,164)
Accrued expenses and other current liabilities (656) (470)
Noncurrent assets and liabilities, net (including long-term retainage) 2,043 (910)
Net cash used in operating activities (7,277) (6,706)
Cash flows from investing activities:    
Capital expenditures (10,191) (1,990)
Proceeds from sale of property, plant and equipment 1,679 1,598
Purchases of short-term investments (19,992) (45,366)
Maturities of short-term investments 20,000 28,761
Net cash used in investing activities (8,504) (16,997)
Cash flows from financing activities:    
Proceeds from borrowings 10,000  
Payment of financing cost (70) (48)
Tax payments for vested stock withholdings (74) (795)
Net cash provided by (used in) financing activities 9,856 (843)
Net decrease in cash and cash equivalents (5,925) (24,546)
Cash and cash equivalents, beginning of period 49,703 70,457
Cash and cash equivalents, end of period $ 43,778 $ 45,911