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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Cash flows from operating activities: |  |  |
Net income (loss) | $ (20,378,000) | $ (44,766,000) | $ 3,515,000
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities: |  |  |
Depreciation and amortization | 10,430,000 | 12,909,000 | 25,448,000
Amortization of deferred revenue | 0 | (2,008,000) | (5,223,000)
Bad debt expense | 30,000 | 21,000 | 493,000
Asset impairments | 4,363,000 | 7,672,000 | 0
(Gain) loss on assets held for sale, net | (7,642,000) | 259,000 | 0
Gain on insurance recoveries | (3,571,000) | 0 | 0
Loss (gain) on the sale of fixed assets and other assets | 268,000 | (35,000) | (757,000)
Deferred income taxes | 200,000 | (23,234,000) | 1,409,000
Stock-based compensation expense | 2,795,000 | 2,741,000 | 3,125,000
Changes in operating assets and liabilities: |  |  |
Contracts receivable and retainage, net | 2,962,000 | (8,319,000) | 28,067,000
Contract assets | (26,932,000) | (1,544,000) | (13,984,000)
Prepaid expenses, inventory and other assets | (3,294,000) | 744,000 | 6,731,000
Accounts payable | 10,515,000 | 9,354,000 | (12,757,000)
Contract liabilities | 12,371,000 | 8,390,000 | (12,305,000)
Deferred revenue | (852,000) | (4,917,000) | (11,656,000)
Deferred compensation | 843,000 | 1,608,000 | 305,000
Accrued expenses and other liabilities | (2,500,000) | 1,740,000 | 2,157,000
Net cash (used in) provided by operating activities | (20,392,000) | (39,385,000) | 14,568,000
Cash flows from investing activities: |  |  |
Cash received in acquisition | 0 | 0 | 3,035,000
Capital expenditures | (3,481,000) | (4,834,000) | (6,795,000)
Purchase of short-term investments | (9,610,000) | 0 | 0
Maturities of short-term investments | 1,200,000 | 0 | 0
Proceeds from the sale of property, plant and equipment | 85,247,000 | 2,155,000 | 6,458,000
Recoveries from insurance claims | 9,362,000 | 1,544,000 | 0
Net cash provided by (used in) investing activities | 82,718,000 | (1,135,000) | 2,698,000
Cash flows from financing activities: |  |  |
Proceeds from borrowings under Credit Agreement | 15,000,000 | 2,000,000 | 0
Repayment of borrowings under Credit Agreement | (15,000,000) | (2,000,000) | 0
Payment of financing cost | (42,000) | (150,000) | (122,000)
Tax payments made on behalf of employees from vested stock withholdings | (810,000) | (916,000) | (217,000)
Payments of dividends on common stock | 0 | (598,000) | (588,000)
Net cash used in financing activities | (852,000) | (1,664,000) | (927,000)
Net increase (decrease) in cash and cash equivalents | 61,474,000 | (42,184,000) | 16,339,000
Cash and cash equivalents, beginning of period | 8,983,000 | 51,167,000 | 34,828,000
Cash and cash equivalents, end of period | 70,457,000 | 8,983,000 | 51,167,000
Supplemental cash flow information: |  |  |
Interest paid | 352,000 | 349,000 | 332,000
Income taxes paid (refunds received), net | 6,000 | 189,000 | 377,000
Reclassification of property, plant and equipment to assets held for sale | 0 | 109,488,000 | 0
Reclassification of assets held for sale to property, plant and equipment | 866,000 | 0 | 0
Reclassification of accrued expenses to assets held for sale | $ 3,245,000 | $ 0 | $ 0

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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
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- Definition The cash outflow for securities or other assets acquired, which qualify for treatment as an investing activity and are to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
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- Definition Amount of cash inflow for proceeds from settlement of insurance claim, classified as investing activities. Excludes insurance settlement classified as operating activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 21B -URI http://asc.fasb.org/extlink&oid=109223946&loc=SL94080549-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
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- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition The cash inflow from maturities, prepayments, calls and collections of all investments, including securities and other assets, having ready marketability and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
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- Definition The cash inflow from sale of machinery and equipment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
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- Definition The amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. For cash flows, this element primarily pertains to amortization of deferred credits on long-term arrangements. As a noncash item, it is deducted from net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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- Definition Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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