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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Cash flows from operating activities: |  |  |
Net income |  | $ 2,737 | $ 2,191
Less: loss on discontinued operations, net of taxes of $0 (Note 9) |  | (412) | (541)
Income from continuing operations |  | 3,149 | 2,732
Adjustments to reconcile net income from continuing operations to cash provided by (used in) operating activities: |  |  |
Depreciation and amortization |  | 1,596 | 1,342
Interest on finance lease with purchase option |  | 9 | 3
Loss on extinguishment of debt |  | 27 |
Amortization of debt issuance/debt discount costs |  | 294 | 208
Deferred tax (benefit) expense |  | (119) | 4
(Recovery of) provision for bad debt reserves |  | (101) | 386
Loss on disposal of property and equipment |  | 29 | 3
Issuance of common stock for services |  | 232 | 241
Stock-based compensation |  | 236 | 179
Changes in operating assets and liabilities of continuing operations: |  |  |
Accounts receivable |  | 3,620 | (5,829)
Unbilled receivables |  | (6,469) | (4,879)
Prepaid expenses, inventories and other assets |  | 1,147 | 923
Accounts payable, accrued expenses and unearned revenue |  | 4,217 | 664
Cash provided by (used in) continuing operations |  | 7,867 | (4,023)
Cash used in discontinued operations |  | (499) | (660)
Cash provided by (used in) operating activities |  | 7,368 | (4,683)
Cash flows from investing activities: |  |  |
Purchases of property and equipment (net) | [1] | (1,715) | (1,535)
Proceeds from sale of property and equipment |  | 4 | 2
Cash used in investing activities of continuing operations |  | (1,711) | (1,533)
Cash provided by investing activities of discontinued operations |  | 118 | 121
Cash used in investing activities |  | (1,593) | (1,412)
Cash flows from financing activities: |  |  |
Borrowing on revolving credit |  | 102,788 | 59,333
Repayments of revolving credit borrowings |  | (103,109) | (59,651)
Proceeds from issuance of long-term debt |  | 5,666 | 2,500
Proceeds from finance leases |  |  | 405
Principal repayment of finance lease liabilities |  | (615) | (272)
Principal repayments of long term debt |  | (2,759) | (1,344)
Payment of debt issuance costs |  | (85) | (112)
Proceeds from issuance of common stock upon exercise of options |  | 6 | 133
Cash provided by financing activities of continuing operations |  | 1,892 | 992
Effect of exchange rate changes on cash |  | 6 | 19
Increase (decrease) in cash and finite risk sinking fund (restricted cash) (Note 2) |  | 7,673 | (5,084)
Cash and finite risk sinking fund (restricted cash) at beginning of period (Note 2) |  | 11,697 | 16,781
Cash and finite risk sinking fund (restricted cash) at end of period (Note 2) |  | 19,370 | 11,697
Supplemental disclosure: |  |  |
Interest paid |  | 366 | 422
Income taxes paid |  | 70 | 245
Non-cash investing and financing activities: |  |  |
Equipment purchase subject to finance lease |  | 856 | 393
Equipment purchase subject to financing |  | 27 |
Issuance of Common Stock with debt |  |  | 263
Issuance of Warrant with debt |  |  | $ 93
[1] | Net of financed amount of $883,000 and $393,000 for the year ended December 31, 2020 and 2019, respectively.

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