Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue	$ 4,034,408	$ 3,718,884	$ 7,400,268	$ 9,755,244
Cost of revenue	3,188,746	3,117,369	6,236,026	7,218,205
Gross profit	845,662	601,515	1,164,242	2,537,039
Operating expenses
Research and development	128,512	96,108	228,944	209,936
Selling and shipping	217,976	131,263	353,731	297,040
General and administrative	1,582,098	1,506,398	3,283,278	3,054,156
Total operating expenses	1,928,586	1,733,769	3,865,953	3,561,132
Operating loss	(1,082,924)	(1,132,254)	(2,701,711)	(1,024,093)
Other income (expense):
Interest income	403	5,478	1,626	30,380
Interest expense	(107,000)	(114,484)	(214,221)	(230,522)
Gain on debt extinguishment	2,443,418	0	2,443,418	0
Other Income	217,592	107,880	436,827	218,688
Total other income (loss), net	2,554,413	(1,126)	2,667,650	18,546
Income (loss) before income tax	1,471,489	(1,133,380)	(34,061)	(1,005,547)
Income tax expense (benefit)	1,064	1,049	1,064	(1,529,596)
Net income (loss)	$ 1,470,425	$ (1,134,429)	$ (35,125)	$ 524,049
Basic income (loss) per common share (in dollars per share)	$ 0.22	$ (0.17)	$ (0.01)	$ 0.08
Diluted income (loss) per common share (in dollars per share)	$ 0.22	$ (0.17)	$ (0.01)	$ 0.08
Outstanding-basic (in shares)	6,684,281	6,634,746	6,682,347	6,630,391
Outstanding-diluted (in shares)	6,687,229	6,634,746	6,682,347	6,630,391