Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities:
Net loss (including noncontrolling interests)	$ (2,932)	$ (3,134)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense	35	84
Depreciation and amortization	37	87
Amortization of operating lease right-of-use assets	33	224
Recoveries of bad debt		(79)
Changes in operating assets and liabilities:
Accounts receivable and unbilled revenue, net	140	253
Inventory	17	(2,312)
Prepaid expenses and other current assets	27	232
Accounts payable, accrued payroll and employee benefits, and accrued expenses	374	(287)
Contract liabilities	(13)	12
Operating lease obligations	(33)	(294)
Net cash used in operating activities	(2,315)	(5,214)
Cash flows from investing activities:
Purchase of property and equipment	(36)	(47)
Net cash used in investing activities	(36)	(47)
Cash flows from financing activities:
Proceeds from issuance of common stock, net of offering costs	7,866
Principal payments on finance lease obligations	(52)	(99)
Net cash provided by (used in) financing activities	7,814	(99)
Effect of exchange rate changes on cash and cash equivalents	12	403
Net increase (decrease) in cash and cash equivalents	5,475	(4,957)
Cash and cash equivalents at beginning of period	14,816	17,383
Cash and cash equivalents at end of period	20,291	12,426
Supplemental disclosure of cash flow information:
Cash paid for income taxes	60	2
Cash paid for interest	$ 6	6
Supplemental disclosure of non-cash investing and financial activities:
Property and equipment obtained in exchange for lease obligations		$ 24