Condensed Consolidated Balance Sheets - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 802,090	$ 530,110
Restricted cash	500,000	500,000
Accounts receivable, net of allowance of doubtful accounts of $209,710 and $138,331 as of March 31, 2023 and December 31, 2022, respectively	3,194,760	2,758,406
Inventories, net	22,766,496	25,415,206
Prepaid expenses and other current assets	441,971	360,735
Total current assets	27,705,317	29,564,457
Equipment, net	552,190	636,973
Operating lease right-of-use assets, net	134,071	173,480
Intangible assets, net	46,256	73,301
Other assets	514,240	511,795
Total assets	28,952,074	30,960,006
Current liabilities
Bank credit line	3,828,380	4,758,663
Accounts payable	5,336,178	2,837,191
Current maturities of bridge loan agreement	1,000,000	1,000,000
Current maturities of operating lease liabilities	125,010	150,968
Accrued expenses	4,729,053	4,440,724
Deferred revenue, current	629,691	633,542
Total current liabilities	15,648,312	13,821,088
Operating lease liabilities, less current maturities	9,061	22,512
Deferred revenue, noncurrent	896,990	771,738
Total liabilities	16,554,363	14,615,338
Commitments and Contingencies (Note 7)
Stockholders’ equity
Preferred Stock, authorized: 2,000,000 shares at $0.01 par value; 0 shares issued and outstanding
Common Stock, authorized: 60,000,000 shares at $0.01 par value; issued and outstanding: 1,887,535 shares at March 31, 2023 and 1,877,970 shares at December 31, 2022 respectively	471,883	469,492
Additional paid-in capital	90,831,139	90,710,030
Accumulated deficit	(78,905,311)	(74,834,854)
Total stockholders’ equity	12,397,711	16,344,668
Total liabilities and stockholders’ equity	$ 28,952,074	$ 30,960,006