Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2022		Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 3,411		$ 8,229
Accounts receivable, net of allowance for doubtful accounts of $11 and $18 respectively	3,712		2,369
Inventories	2,468		1,429
Investments in available-for-sale debt securities	422		0
Investments in equity securities	245	[1]	0
Prepaid expenses and other current assets	374		355
Total current assets	10,632		12,382
Property and equipment:
Furniture and fixtures	135		136
Leasehold improvements	6		6
Equipment	988		994
Real property	2,059		2,059
Property and equipment, Gross	3,188		3,195
Accumulated depreciation	1,033		958
Property and equipment, Net	2,155		2,237
Operating lease assets, net	5		58
Intangible assets, net	2,798		2,866
Deferred income taxes	4,699		4,824
Long-term investments in available-for-sale debt securities	1,526		0
TOTAL ASSETS	21,815		22,367
Current liabilities:
Accounts payable	1,088		236
Deferred revenue	115		107
Warranty	109		128
Accrued compensation	40		132
Operating lease obligations	6		59
Current maturities of long-term debt	58		56
Other current liabilities	109		181
Total current liabilities	1,525		899
Commitments and Contingencies	0		0
Long-term debt	1,631		1,674
TOTAL LIABILITIES	3,156		2,573
Shareholders' equity:
Preferred stock, $0.01 par value; 5,000,000 shares authorized, none issued or outstanding	0		0
Common stock, $0.01 par value; 20,000,000 shares authorized, 5,406,237 and 5,378,857  issued and outstanding at September 30, 2022 and December 31, 2021, respectively	54		54
Additional paid-in capital	25,513		25,167
Accumulated other comprehensive loss	(564)		(288)
Accumulated deficit	(6,344)		(5,139)
Total shareholders' equity	18,659		19,794
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 21,815		$ 22,367

[1] The fair value of the Company's equity investments are determined based on readily available market data and are classified as level 1 fair value measurements.