Consolidated Balance Sheets - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 9,218,036	$ 4,510,660
Trade receivables, net of allowances	2,846,619	2,997,743
Inventories	10,006,897	9,509,454
Current right-of-use assets from operating leases	1,157,077	1,160,658
Prepaid expenses	281,719	172,834
Total current assets	23,510,348	18,351,349
Note receivable	2,100,000	0
Property and equipment, net	6,888,601	1,351,039
Goodwill	1,367,109	1,367,109
Intangible assets, net	2,992,473	3,394,073
Long-term operating lease right-of-use assets, less current portion	3,522,923	2,335,040
Other long-term assets	197,638	204,784
Total assets	40,579,092	27,003,394
Current liabilities:
Accounts payable-Trade	1,510,697	1,467,845
Notes payable, related party	307,032	1,084,072
Notes payable	1,813,425	0
Current operating lease liabilities	1,148,309	1,175,109
Accrued expenses	844,324	916,509
Customer deposits and other liabilities	428,976	165,404
Total current liabilities	6,052,763	4,808,939
Notes payable, related party, less current portion	9,052,810	8,554,980
Notes payable, less current portion	4,240,658	0
Long-term operating lease liabilities, less current portion	3,654,419	2,445,301
Total liabilities	23,000,650	15,809,220
Commitments and contingencies
Stockholders' equity:
Common stock, $0.01 par value; 60,000,000 shares authorized; 26,924,631 shares and 26,924,381 shares issued and outstanding as of December 31, 2019 and 2020 respectively	269,246	269,244
Additional paid-in capital	40,173,000	40,172,677
Accumulated deficit	(22,863,804)	(29,247,747)
Total stockholders' equity	17,578,442	11,194,174
Total liabilities and stockholders' equity	$ 40,579,092	$ 27,003,394