UNAUDITED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Revenue	$ 14,905,009	$ 11,625,327	$ 28,220,761	$ 24,984,964
Cost of revenue	10,252,265	8,300,132	19,135,233	18,264,082
Gross profit	4,652,744	3,325,195	9,085,528	6,720,882
Operating expenses:
General and administrative	1,648,785	1,877,358	3,806,404	4,391,423
Marketing and selling	1,479,292	845,098	2,647,193	2,034,449
Research and development	1,008,017	1,008,625	1,840,250	2,212,050
Total operating expenses	4,136,094	3,731,081	8,293,847	8,637,922
Income (loss) from operations	516,650	(405,886)	791,681	(1,917,040)
Other income (expense), net:
Interest income	61,798	99,343	67,098	123,980
Interest expense	(169,031)	(150,186)	(319,013)	(218,970)
Other income (expense), net	1,522,998	3,056	1,494,369	(4,973)
Total other income (expense), net	1,415,765	(47,787)	1,242,454	(99,963)
Income (loss) before income taxes	1,932,415	(453,673)	2,034,135	(2,017,003)
Provision (benefit) for income taxes	235,293	(441,511)	295,815	(908,809)
Net income (loss)	$ 1,697,122	$ (12,162)	$ 1,738,320	$ (1,108,194)
Net income (loss) per share:
Basic	$ 0.09	$ 0.00	$ 0.10	$ (0.07)
Diluted	$ 0.09	$ 0.00	$ 0.09	$ (0.07)
Weighted average common shares outstanding:
Basic	18,513,620	16,488,325	17,934,022	16,410,660
Diluted	19,735,383	16,488,325	19,305,842	16,410,660