Condensed Balance Sheets (Unaudited) - USD ($)	Sep. 30, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 2,279,820	$ 125,982
Accounts receivable, net	4,747,507	2,760,606
Inventories	6,341,792	7,927,678
Deposits on inventory purchases	28,728	723,639
Prepaid expenses and other current assets	356,371	194,946
Total current assets	13,754,218	11,732,851
Other assets	202,894	222,160
Operating lease right-of-use assets, net	127,410	0
Equipment, net	283,986	261,476
Total assets	14,368,508	12,216,487
Current liabilities
Bank debt	0	1,741,272
Accounts payable	4,361,223	4,369,309
Operating lease liabilities	101,127	0
Accrued other expenses	2,706,534	2,229,561
Total current liabilities	7,168,884	8,340,142
Long-term operating lease liabilities	26,283	0
Total liabilities	7,195,167	8,340,142
Commitments and contingencies (Note 4)
Stockholders' equity
Common stock: authorized: 40,000,000 shares at $0.01 par value, issued and outstanding: 20,880,136 shares at September 30, 2019 and 16,124,681 shares at December 31, 2018	208,801	161,247
Additional paid-in capital	46,411,235	41,035,936
Accumulated deficit	(39,446,695)	(37,320,838)
Total stockholders' equity	7,173,341	3,876,345
Total liabilities and stockholders' equity	$ 14,368,508	$ 12,216,487