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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2017 | Sep. 30, 2016
Cash flows from operating activities: |  |
Net income (loss) | $ 5,846 | $ (3,021)
Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |
Depreciation and amortization | 1,370 | 1,509
Bad debt (recovery) | (8) |
Bad debt expense |  | 6
Amortization of debt discount | 64 | 54
Non-cash interest expense | 213 | 0
Stock-based compensation expense | 377 | 748
Gain on debt extinguishment | (9,045) | 0
Accrued non-cash stock-based expense | 0 | 168
Impairment charges | 1,712 | 630
Deferred tax provision (benefit) | (230) | 111
Changes in assets and liabilities: |  |
Accounts receivable | 276 | 953
Prepaid expenses and other current assets | 211 | (342)
Other assets | 0 | 1
Accounts payable | 126 | (271)
Accrued expenses and other liabilities | 246 | (281)
Accrued sales taxes and regulatory fees | (85) | 0
Net cash provided by operating activities | 1,073 | 265
Cash flows from investing activities: |  |
Purchases of property and equipment | (93) | (273)
Net cash used in investing activities | (93) | (273)
Cash flows from financing activities: |  |
Principal payments under borrowing arrangements | (341) | (400)
Proceeds from new loan agreements, net of expenses of $170 | 2,030 | 0
Payment of equity issuance costs | (45) | 0
Purchase of treasury stock | (2,325) | (13)
Net cash used in financing activities | (681) | (413)
Increase (decrease) in cash and cash equivalents | 299 | (421)
Cash at beginning of period | 1,140 | 1,764
Cash at end of period | 1,439 | 1,343
Supplemental disclosures of cash flow information: |  |
Cash paid during the period for interest | 777 | 841
Non-cash investing and financing activities: |  |
Accrued preferred stock dividends | 9 | 9
Retired debt and accrued interest obligations in exchange for treasury stock | 2,191 | 0
Recognition of prepaid equity issuance costs as additional paid-in capital | $ 0 | $ 18

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