CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net cash used in operating activities	$ (3,122)	$ (3,701)
Cash flows from investing activities:
Proceeds from sale of assets	144	4,699
Proceeds from sale of trading securities	113
Acquisitions of property, plant and equipment	(28)	(61)
Net cash from investing activities	229	4,638
Cash flows from financing activities:
Proceeds from issuance of common stock, net of issuance costs	2,492	809
Net cash from financing activities	2,492	809
Net decrease in cash and cash equivalents	(401)	1,746
Cash and cash equivalents, beginning of period	3,293	3,250
Cash and cash equivalents, end of period	$ 2,892	$ 4,996

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

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