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v3.22.1

Statements Of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Cash flows from operating activities |  |
Net income (loss) | $ 410 | $ (124)
Adjustments to reconcile net income (loss) to net cash from operating activities: |  |
Depreciation and amortization | 295 | 360
Deferred income taxes | 38 | (43)
Stock-based compensation expense | 5 | 6
Interest accrued on Treasury Bills | (2) | (4)
Other | (7) | 4
Change in: |  |
Trade receivables | (48) | 79
Inventories | (91) | 123
Other current assets | (18) | (11)
Accounts payable | 152 | 68
Accrued expenses | 12 | (101)
Income taxes receivable | 23 | (26)
Net cash from operating activities | 769 | 331
Cash flows from (used in) investing activities |  |
Purchases of Treasury Bills | (11,999) | (13,745)
Proceeds from the maturity of Treasury Bills | 17,000 | 5,750
Purchase of property and equipment | (141) | (25)
Net cash from (used in) investing activities | 4,860 | (8,020)
Cash flows used in financing activities |  |
Payments on financing lease | (6) | (6)
Proceeds from Paycheck Protection Program | 0 | 645
Repayment of Paycheck Protection Program loan | 0 | (645)
Net cash used in financing activities | (6) | (6)
Net increase (decrease) in cash and cash equivalents | 5,623 | (7,695)
Cash and cash equivalents, beginning | 1,090 | 8,785
Cash and cash equivalents, ending | 6,713 | 1,090
Supplemental cash flow information |  |
Cash paid during the year for income taxes | 15 | 20
Cash paid during the year for interest | $ 1 | $ 3

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