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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) | 6 Months Ended
--- | ---
Jun. 30, 2015 | Jun. 30, 2014
Operating activities: |  |
Net income | $ 1,071,318 | $ 1,057,050
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Settlement of tax liability | (406,453) | 0
Depreciation and amortization | 843,085 | 896,309
Deferred income taxes | 0 | (75,698)
Amortization of financing fees | 10,178 | 12,980
Adjustment of European liabilities related to discontinued operations | (11,405) | (59,063)
(Recovery) Provision of doubtful accounts | (13,036) | 15,032
Stock based compensation | 134,674 | 378,830
Change in operating assets and liabilities: |  |
Accounts receivable and unbilled revenue | (1,235,153) | (161,440)
Prepaid expenses and other assets | 4,901 | 43,086
Accounts payable | 2,665,878 | (728,227)
Accrued expenses and other liabilities | 3,607 | 217,644
Net cash provided by operating activities | 3,067,594 | 1,596,503
Investing activities: |  |
Purchases of equipment and capitalized development costs | (577,140) | (375,285)
Net cash used in investing activities | (577,140) | (375,285)
Financing activities: |  |
Net taxes paid on RSU grants exercised | 251,083 | 96,289
Proceeds from revolving line of credit | 0 | 1,350,000
Payments on revolving line of credit | (1,793,275) | (1,261,469)
Payments on term note payable and capital leases | (381,282) | (949,576)
Net cash used in financing activities | (2,425,640) | (957,334)
Net change – cash | 64,814 | 263,884
Cash, beginning of year | 3,714,525 | 3,137,153
Cash, end of period | 3,779,339 | 3,401,037
Supplemental information: |  |
Interest paid | 71,759 | 161,564
Income taxes paid | 97,483 | 0
Non-cash investing and financing activities: |  |
Purchase of property and equipment under capital lease | 103,609 | 0
Purchase of intangible assets through a contingent liability | $ 715,874 | $ 0

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