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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Cash flows from operating activities: |  |  |
Net loss | $ (13,558) | $ (1,710) | $ 1,241
Adjustments to reconcile net loss to net cash provided by operating activities: |  |  |
Depreciation and amortization | 5,197 | 3,248 | 2,845
Reduction of operating lease right-of-use assets | 741 | 1,311 | 1,192
Loss on impairment, receivables and sale or disposal of equipment | 319 | 162 | 60
Stock-based compensation | 14,574 | 17,837 | 1,706
Amortization of debt issuance costs | 32 | 32 | 32
Deferred tax assets | 48 | 2,437 | (2,855)
Deferred tax liabilities | (916) | 916 | 0
Changes in assets and liabilities: |  |  |
Accounts receivable | (6,006) | (2,170) | (1,955)
Settlement assets | 173 | 2,878 | 1,599
Prepaid expenses | (6,509) | 270 | 3,628
Other current assets | (4,100) | (1,393) | 45
Related party loan receivable | 586 | 0 | 0
Other assets | 124 | (248) | (31)
Accounts payable | 1,424 | (714) | 446
Accrued expenses and other liabilities | 7,511 | 1,774 | 226
Operating lease liabilities | (801) | (1,374) | (1,252)
Settlement liabilities | 7,372 | (16,548) | 5,503
Other liabilities | (725) | 877 | 0
Net cash provided by operating activities | 5,486 | 7,585 | 12,430
Cash flows from investing activities: |  |  |
Purchase of property and equipment | (2,706) | (2,488) | (3,235)
Proceeds from sale or disposal of property and equipment | 0 | 2 | 4
Software development costs | (4,908) | (1,809) | (1,673)
Net cash used by investing activities | (7,614) | (4,295) | (4,904)
Cash flows from financing activities: |  |  |
Principal payments of finance leases | (774) | (808) | (793)
Principal payments of term loan | (25,191) | (319) | (39)
Proceeds from term loan | 45,000 | 0 | 0
Principal payments of line of credit | 0 | (1,000) | 0
Proceeds from line of credit | 0 | 9,613 | 5,500
Repurchases of common stock | 0 | 0 | (14)
Vesting of restricted common stock | 567 | 0 | 0
Proceeds from initial public offering, net of underwriters' discounts and commissions | 57,458 | 0 | 0
Proceeds from issuance of common stock on exercise of stock options | 3,505 | 1,301 | 482
Net cash provided by financing activities | 80,565 | 8,787 | 5,136
Net increase in cash and cash equivalents | 78,437 | 12,077 | 12,662
Cash and cash equivalents and restricted cash, beginning of period | 46,878 | 34,801 | 22,139
Cash and cash equivalents and restricted cash, end of period | 125,315 | 46,878 | 34,801
Supplemental disclosure of cash flow information: |  |  |
Cash paid for interest | 3,082 | 2,929 | 2,708
Cash paid for income taxes | 6,922 | 150 | 216
Noncash investing and financing items: |  |  |
Commercial building and land acquired with long-term debt (net of issuance costs of $8,226) | 0 | 0 | 10,644
Right-of-use assets acquired with lease liabilities | 0 | 1,260 | 1,210
Reconciliation of cash, cash equivalents and restricted cash to the consolidated balance sheets |  |  |
Cash and cash equivalents | 98,398 | 34,401 | 9,990
Restricted cash included in other current assets | 8,651 | 1,955 | 421
Restricted cash included in other assets | 47 | 48 | 246
Restricted cash included in settlement assets | 18,219 | 10,474 | 24,144
Total cash, cash equivalents and restricted cash | $ 125,315 | $ 46,878 | $ 34,801

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