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v3.20.4

Consolidated Statements of Cash Flows - USD ($) | 12 Months Ended
--- | ---
Dec. 26, 2020 | Dec. 28, 2019 | Dec. 29, 2018
Cash flows from operating activities: |  |  |
Net loss | $ (4,530,925) | $ (29,374,222) | $ (34,482,492)
Adjustments to reconcile net loss to net cash used in operating activities: |  |  |
Depreciation and amortization | 651,083 | 792,221 | 1,958,680
Accretion of premium or discount on marketable debt securities | 7,762 | 21,838 | 15,948
Stock-based compensation | 821,122 | 2,057,400 | 4,791,054
Net loss (gain) on investment transactions | 29,356 | 3,858,453 | (2,849,816)
Income taxes | 116,536 | 105,036 | 4,185
Foreign currency (gains) losses | (289,471) | (220,015) | (1,096,487)
Loss on sale of property and plant |  | 508,833 | 51,159
Impairment of assets |  |  | 2,526,669
Impairment of goodwill |  | 331,344 | 1,417,470
Change in allowance for bad debt | (763,159) | 633,131 | (155,000)
Write-off of excess inventory | 667,019 | 1,834,300 | 832,615
Change in warranty reserves | (1,172) | (62,107) | (79,633)
Changes in assets and liabilities: |  |  |
Accounts receivable | (2,954,703) | (3,944,859) | 853,163
Contract assets and unbilled receivables | (2,600,671) | 2,168,581 | 865,474
Inventory | (1,332,139) | (792,165) | (1,656,196)
Prepaid expenses, other current assets and other assets | (160,371) | 821,340 | 113,015
Accounts payable and accrued expenses | 5,227,011 | (163,084) | (1,208,848)
Billings in excess of revenue earned | 695,565 | 397,121 | (4,742)
Net cash used in operating activities | (4,417,157) | (21,026,854) | (28,103,782)
Cash flows from investing activities: |  |  |
Proceeds from sale of marketable debt securities | 12,148,117 | 7,454,139 | 26,646,078
Purchase of marketable debt securities |  |  | (5,697,329)
Equity investments purchase |  | (2,500,000) | (1,000,000)
Other assets | 193,186 | (41,031) | (8,373)
Capital expenditures | (542,862) | (170,186) | (1,183,131)
Net cash provided by investing activities | 11,798,441 | 4,742,922 | 18,757,245
Cash flows from financing activities: |  |  |
Sale of treasury stock, net of costs | 3,829,462 |  |
Sale of registered stock, net of costs |  | 8,038,529 |
Settlements of restricted stock for tax withholding obligations | (139,926) | (45,513) | (208,015)
Distribution to noncontrolling interest holder |  |  | (699,105)
Net cash provided by (used in) financing activities | 3,689,536 | 7,993,016 | (907,120)
Effect of exchange rate changes on cash | 12,802 | (6,184) | (268,223)
Net increase (decrease) in cash and cash equivalents | 11,083,622 | (8,297,100) | (10,521,880)
Cash and cash equivalents at beginning of year | 6,029,247 | 14,326,347 | 24,848,227
Cash and cash equivalents at end of year | 17,112,869 | 6,029,247 | 14,326,347
Supplemental disclosure of cash flow information: |  |  |
Income taxes paid |  |  | 1,374,000
Construction in progress included in accrued expenses | $ 257,000 |  |

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