Condensed Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Operating activities
Net loss	$ (2,520)	$ (10,672)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Inventories allowances	(61)	48
Amortization of deferred finance and other assets	113	0
Depreciation and amortization	1,218	1,061
Share-based compensation expense-stock options	163	205
Share-based compensation expense-restricted stock units	773	367
Loss on investments	831	1,021
Changes in operating assets and liabilities:
Trade accounts receivable	1,506	2,850
Inventories	593	(9,402)
Prepaid expenses and other current assets	(385)	(77)
Other assets	(277)	(46)
ROU assets and lease liabilities	(38)	(27)
Accounts payable	(1,135)	7,374
Accrued compensation and related taxes	412	362
Accrued warranty expense	145	54
Deferred revenue	2,660	190
Accrued other expenses and other current liabilities	(58)	(166)
Net cash provided by (used in) operating activities	3,940	(6,858)
Investing activities
Purchases of property, plant, and equipment	(1,835)	(959)
Net cash used in investing activities	(1,835)	(959)
Financing activities
Proceeds from common stock issuance	63	0
Cash dividends paid	0	(1,519)
Proceeds from the credit facility and notes payable	58,896	2,988
Repayment of the credit facility and notes payable	(58,916)	(198)
Net cash provided by financing activities	43	1,271
Net change in cash and cash equivalents	2,148	(6,546)
Cash and cash equivalents, beginning of period	1,918	10,580
Cash and cash equivalents, end of period	4,066	4,034
Supplemental disclosure
Cash paid for interest	487	93
Non-cash financing activity
Common stock issued under restricted stock units	$ 556	$ 364