Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Condensed Consolidated Statements of Operations [Abstract]
Net sales	$ 5,390,726	$ 5,129,013	$ 10,655,703	$ 10,112,294
Cost of sales	5,008,889	4,184,263	9,620,492	8,482,425
Gross profit	381,837	944,750	1,035,211	1,629,869
Selling and marketing	234,820	303,564	500,693	596,910
General and administrative	552,678	491,432	1,169,508	1,182,067
Research and development	28,344	24,415	57,640	50,258
Total operating expenses	815,842	819,411	1,727,841	1,829,235
Net income (loss) from operations	(434,005)	125,339	(692,630)	(199,366)
Other expense:
Interest expense	(87,429)	(63,276)	(151,330)	(123,496)
Other income, net	9,981	50	34,070	827
Total other expense, net	(77,448)	(63,226)	(117,260)	(122,669)
Net income (loss) before income tax provision (benefit)	(511,453)	62,113	(809,890)	(322,035)
Income tax provision (benefit)
Net income (loss)	$ (511,453)	$ 62,113	$ (809,890)	$ (322,035)
Earnings (loss) per share - basic	$ (0.18)	$ 0.02	$ (0.29)	$ (0.11)
Earnings (loss) per share - diluted	$ (0.18)	$ 0.02	$ (0.29)	$ (0.11)
Weighted average common shares outstanding - basic	2,820,999	2,816,639	2,819,915	2,816,392
Weighted average common shares outstanding - diluted	2,820,999	2,900,493	2,819,915	2,816,392