XML 18 R6.htm IDEA: XBRL DOCUMENT v3.23.1
CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Cash flows from operating activities:    
Net income (loss) $ 20,556 $ (7,694)
Adjustments to reconcile net income (loss) to net cash used in operating activities:    
Depreciation and amortization expense 2,970 2,867
Amortization of right of use of assets 597 611
Share-based compensation expense 113 136
Change of inventory to net realizable value 120 850
Loss on disposal of assets 146 0
Gain recognized on Paycheck Protection Plan Loan forgiveness (1,528) 0
Gain on legal settlement proceeds, net of capitalized legal costs less amortization (33,623) 0
Changes in operating assets and liabilities:    
Receivables 1,388 203
Inventories 1,812 603
Prepaid expenses and other assets 684 (2,485)
Accounts payable (4,104) 1,438
Accrued liabilities 485 166
Income taxes receivable 6,466 (366)
Deferred product revenue 9 (69)
Operating lease liabilities (623) (631)
Other long-term liabilities 353 (23)
Net cash used in operating activities (4,179) (4,394)
Cash flows from investing activities:    
Capitalized patent defense costs (737) (7,836)
Purchase of property and equipment (51) (221)
Purchase of intangibles (137) (290)
Proceeds from maturities and sales of marketable securities 3,010 4,004
Purchase of marketable securities 0 (4,164)
Net cash used in investing activities 2,085 (8,507)
Cash flows from financing activities:    
Gross proceeds from issuance of common stock and warrants 0 10,000
Costs of issuance of common stock and warrants 0 (712)
Proceeds from issuance of short-term notes 2,000 2,000
Proceeds from Paycheck Protection Program loan 767 0
Principal payments of long-term debt (720) (1,098)
Proceeds from equity-based compensation programs 4 15
Net cash provided by financing activities 2,051 10,205
Effect of exchange rate changes on cash and cash equivalents (44) (36)
Net increase (decrease) in cash and cash equivalents (87) (2,732)
Cash and cash equivalents at the beginning of the year 1,071 3,803
Cash and cash equivalents at the end of the year 984 1,071
Supplemental disclosure of cash flow information:    
Cash paid for income taxes 88 107
Cash paid for interest 226 296
Supplemental disclosure of non-cash investing and financing activities    
Right-of-use assets obtained in exchange for lease obligations 107 212
Issue of common stock in consideration of cancellation of debt $ 2,000 $ 0