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STATEMENTS OF CASH FLOWS (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Cash flows from operating activities: |  |  |
Net income | $ 7,736,894 | $ 11,011,130 | $ 7,416,928
Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |  |
Depreciation and amortization | 704,435 | 623,795 | 591,373
Deferred rent | 54,621 | 90,419 | 266,909
Stock-based compensation expense | 379,809 | 382,657 | 985,600
Common stock issued as employee compensation | 41,830 | 37,761 | 36,157
Deferred portion of provision for income taxes | (107,000) | 11,000 | (103,000)
Tax benefit for stock options | (27,000) | (313,000) | (438,000)
Bad debts | 0 | (50,000) | 75,000
Changes in operating assets and liabilities: |  |  |
(Increase) decrease in accounts receivable | 2,382,092 | (3,951,680) | 1,791,974
Increase (decrease) in other assets | 1,512,904 | 0 | 0
Increase in costs and estimated earnings in excess of billings on uncompleted contracts | (3,612,292) | (29,783,016) | (31,942,776)
Decrease (increase) in prepaid expenses and other current assets | (183,205) | 240,263 | (8,220)
Decrease (increase) in accounts payable and accrued expenses | (5,817,028) | 1,465,562 | 4,423,371
(Decrease) increase in income taxes payable | 582,536 | (2,383,000) | 3,105,994
Increase (decrease) in billings in excess of costs and estimated earnings on uncompleted contracts | (380,683) | 540,387 | 97,580
Net cash provided by (used in) operating activities | 3,267,913 | (22,077,722) | (13,701,110)
Cash flows from investing activities: |  |  |
Purchase of property and equipment | (637,370) | (825,110) | (1,587,898)
Net cash provided by (used in) investing activities | (637,370) | (825,110) | (1,587,898)
Cash flows from financing activities: |  |  |
Proceeds from exercise of stock options | 0 | 1,290,515 | 455,447
Proceeds from sale of common stock | 0 | 13,323,694 | 0
Payment of line of credit | (13,100,000) | (4,000,000) | 0
Proceeds from line of credit | 11,000,000 | 11,350,000 | 15,300,000
Payment of long-term debt | (1,101,243) | (2,042,774) | (849,615)
Proceeds from long-term debt | 0 | 4,500,000 | 0
Tax benefit for stock options | 27,000 | 313,000 | 438,000
Net cash provided by financing activities | (3,174,243) | 24,734,435 | 15,343,832
Net increase (decrease) in cash | (543,700) | 1,831,603 | 54,824
Cash at beginning of year | 2,709,803 | 878,200 | 823,376
Cash at end of year | 2,166,103 | 2,709,803 | 878,200
Supplemental schedule of noncash investing and financing activities: |  |  |
Equipment acquired under capital lease | 9,342 | 76,592 | 751,129
Settlement of other receivables | 0 | 0 | 30,000
Accrued expenses settled in exchange for common stock | 152,076 | 228,290 | 0
Stock options proceeds paid with Company's stock | 303,064 | 355,655 | 159,000
Supplemental schedule of cash flow information: |  |  |
Cash paid during the year for interest | 985,189 | 783,373 | 366,491
Cash paid for income taxes | $ 3,000,000 | $ 7,886,409 | $ 180,000

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