Condensed Consolidated Balance Sheets - USD ($)	Sep. 30, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 3,213,000	$ 8,482,000
Accounts receivable, net	8,252,000	8,680,000
Inventories, net	15,265,000	14,029,000
Investments held to maturity	5,975,000	5,731,000
Prepaid expenses and other current assets	1,992,000	1,560,000
Total current assets	34,697,000	38,482,000
Right of use assets, operating leases	504,000	742,000
Property and equipment, net	2,155,000	1,902,000
Intangible assets, net	3,052,000	3,866,000
Total assets	40,408,000	44,992,000
Current liabilities
Accounts payable	3,211,000	3,183,000
Accrued expenses	1,675,000	1,578,000
Notes payable	230,000
Operating lease obligations, current	513,000	463,000
Customer deposits and deferred revenue	1,983,000	1,490,000
Total current liabilities	7,612,000	6,714,000
Operating lease obligations, net of current portion	376,000	755,000
Deferred tax liabilities	430,000	546,000
Total liabilities	8,418,000	8,015,000
Commitments and contingencies (See Note 12)
Stockholders’ equity
Series A Preferred stock, $0.00001 par value per share: -0- shares authorized on September 30, 2024, and December 31, 2023, respectively; -0- shares issued and outstanding on September 30, 2024, and December 31, 2023, respectively.
Common stock, $0.00001 par value per share, 100,000,000 shares authorized on September 30, 2024, and December 31, 2023, respectively: Common stock, 2,464,398 and 2,439,923 were issued, and 2,464,265 and 2,439,790 were outstanding on September 30, 2024, and December 31, 2023, respectively.
Additional paid-in capital	348,548,000	347,507,000
Accumulated other comprehensive loss	(827,000)	(1,027,000)
Treasury stock, at cost – 133 shares as of September 30, 2024, and December 31, 2023, respectively	(277,000)	(277,000)
Accumulated deficit	(315,454,000)	(309,226,000)
Total stockholders’ equity	31,990,000	36,977,000
Total liabilities and stockholders’ equity	$ 40,408,000	$ 44,992,000