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STATEMENTS OF CASH FLOWS - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Cash flows from operating activities: |  |  |
Net income (loss) | $ (3,608,576) | $ 5,015,993 | $ (25,209,275)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Depreciation and amortization | 661,921 | 854,063 | 763,736
Amortization of debt issue costs | 61,320 |  |
Deferred rent | 8,235 | 46,017 | 17,098
Stock-based compensation expense | 524,269 | 524,274 | 467,765
Common stock issued as employee compensation | 163,451 | 59,423 | 57,993
Loss on disposal of fixed asset |  |  | 1,042
Deferred portion of provision for income taxes | (2,077,299) | 2,659,000 | (3,790,000)
Tax benefit from stock option plans |  | (33,000) | (86,000)
Bad debt expense | 460,514 | 50,000 |
Changes in operating assets and liabilities: |  |  |
(Increase) in accounts receivable | (1,309,290) | (1,249,023) | (2,074,560)
(Increase) decrease in costs and estimated earnings in excess of billings on uncompleted contracts | 3,043,861 | (23,568,248) | 33,542,997
Increase in prepaid expenses and other assets | (1,013,008) | (237,199) | (219,007)
(Increase) decrease in refundable income taxes | (77,000) | 8,133,433 | (8,138,322)
Increase (decrease) in accounts payable and accrued expenses | (4,023,547) | 9,446,948 | 1,715,580
Increase in accrued losses on uncompleted contracts | 827,448 | 153,541 | 396,182
(Decrease) increase in income taxes payable | (183,000) | 220,822 | (730,469)
Decrease in billings in excess of costs and estimated earnings on uncompleted contracts | (60,101) | (18,212) | (82,520)
Net cash (used in) provided by operating activities | (6,600,802) | 2,057,832 | (3,367,760)
Cash flows from investing activities: |  |  |
Purchase of plant and equipment | (136,320) | (209,718) | (602,924)
Net cash used in investing activities | (136,320) | (209,718) | (602,924)
Cash flows from financing activities: |  |  |
Proceeds from exercise of stock options |  | 80,000 | 447,751
Payment on line of credit | (30,400,000) | (9,650,000) | (4,700,000)
Proceeds from line of credit | 29,138,685 | 8,200,000 | 8,500,000
Payment on long-term debt | (1,710,145) | (1,013,998) | (1,024,263)
Proceeds from long-term debt | 10,000,000 |  |
Debt issue costs | (253,855) |  |
Tax benefit from stock options |  | 33,000 | 86,000
Net cash provided by (used in) financing activities | 6,774,685 | (2,350,998) | 3,309,488
Net increase (decrease) in cash | 37,563 | (502,884) | (661,196)
Cash at beginning of year | 1,002,023 | 1,504,907 | 2,166,103
Cash at end of year | 1,039,586 | 1,002,023 | 1,504,907
Supplemental schedule of noncash investing and financing activities: |  |  |
Equipment acquired under capital lease | 465,475 | 247,881 | 67,283
Supplemental disclosures of cash flow information: |  |  |
Cash paid during the year for interest | 1,182,791 | 1,000,403 | 915,695
Cash paid for income taxes | $ 302,025 | $ 351,275 | $ 855,000

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585 + Details
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- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585 + 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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- References No definition available. + Details
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