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Consolidated Statements of Cash Flows - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Cash flows from operating activities: |  |  |
Net loss |  | $ (6,074,952) | $ (6,327,658)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities |  |  |
Impairment charge |  | 3,599,322 |
Stock-based compensation |  | 242,679 | 572,177
Depreciation and amortization | [1] | 1,389,145 | 1,042,829
Deferred income tax benefit |  |  | 1,425,414
Recovery on contingent earnout |  |  | (200,000)
Bad debt expense |  | 140,044 |
(Increase)/decrease in operating assets |  |  |
Accounts receivable |  | 1,357,765 | 1,519,683
Contract assets |  | 18,671 | 844,846
Inventories |  | 585,874 | 152,160
Tax receivable |  | (715,599) |
Other current assets |  | 24,162 |
Other assets |  |  | 125,056
Increase/(decrease) in operating liabilities |  |  |
Accounts payable |  | 282,539 | (177,801)
Accrued expenses |  | (493,819) | 315,195
Contract liabilities |  | (1,488,579) | 1,278,813
Total adjustments |  | 4,942,204 | 6,898,372
Net cash (used in) provided by operating activities |  | (1,132,748) | 570,714
Cash flows from investing activities: |  |  |
Capital expenditures |  | (1,577,175) | (2,688,231)
Net cash used in investing activities |  | (1,577,175) | (2,688,231)
Cash flows from financing activities |  |  |
Proceeds from Payroll Protection Plan Loan |  | 2,415,970 |
Payments of long-term debt |  | (670,965) | (657,591)
Net cash provided by (used) in financing activities |  | 1,745,005 | (657,591)
Net decrease in cash and cash equivalents |  | (964,918) | (2,775,108)
Cash and cash equivalents at beginning of period |  | 8,664,253 | 11,439,361
Cash and cash equivalents at end of period |  | 7,699,335 | 8,664,253
Supplemental disclosure of cash flow information: |  |  |
Income taxes paid |  | 3,040 | 2,800
Interest paid |  | 445,109 | 365,254
Supplemental disclosure of non-cash investing and financing activities: |  |  |
Capitalization of right to use Asset |  |  | $ 84,354
[1] | Includes amortization expense of $124,550 and $120,488 for the year ending December 31, 2020 and the year ended December 31, 2019, respectively. Such amortization expense relates to other capitalized and intangibles assets.

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