RESTATEMENT OF PREVIOUSLY ISSUED CONSOLIDATED FINANCIAL STATEMENTS, Consolidated Statements of Comprehensive Income (Loss) (Details) - USD ($)	3 Months Ended								9 Months Ended
	Sep. 30, 2019		Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018		Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019		Sep. 30, 2018
Income Statement [Abstract]
Net sales	$ 16,310,887				$ 18,878,263	[1]			$ 54,449,024		$ 58,566,063	[1]
Cost of sales	7,462,239				6,982,380	[1]			23,985,260		21,747,628	[1]
Gross profit	8,848,648				11,895,883	[1]			30,463,764		36,818,435	[1]
Operating expenses	11,253,081				10,995,989	[1]			31,902,558		32,282,298	[1]
Income (loss) from operations	(2,404,433)				899,894	[1]			(1,438,794)		4,536,137	[1]
Other (income) expense [Abstract]
Interest expense	0				80,710	[1]			32,383		223,534	[1]
Other, net	(62,732)				(40,846)	[1]			(7,239)		(326,066)	[1]
Total other (income) expense	(62,732)				39,864	[1]			25,144		(102,532)	[1]
Income (loss) before income taxes	(2,341,701)				860,030	[1]			(1,463,938)		4,638,669	[1]
Provision (benefit) for income taxes	(623,249)				251,329	[1]			(389,630)		1,355,569	[1]
Net income (loss)	(1,718,452)	[2]	$ (875,667)	$ 1,519,811	608,701	[1]	$ 1,157,743	$ 1,516,656	(1,074,308)	[2]	3,283,100	[1]
Foreign currency translation adjustments, net of tax	(196,777)		$ 87,333	$ 314,493	88,624	[1]	$ (284,774)	$ (58,992)	205,049		(255,142)	[1]
Comprehensive income (loss)	$ (1,915,229)				$ 697,325	[1]			$ (869,259)		$ 3,027,958	[1]
Net income (loss) per common share [Abstract]
Basic (in dollars per share)	$ (0.19)				$ 0.07	[1]			$ (0.12)		$ 0.36	[1]
Diluted (in dollars per share)	$ (0.19)				$ 0.07	[1]			$ (0.12)		$ 0.36	[1]
Weighted average number of shares outstanding [Abstract]
Basic (in shares)	8,932,246	[2]			9,154,215	[1]			8,957,578	[2]	9,199,173	[1]
Diluted (in shares)	8,932,246	[2]			9,160,022	[1]			8,957,578	[2]	9,201,577	[1]
As Reported [Member]
Income Statement [Abstract]
Net sales					$ 18,887,099						$ 58,353,784
Cost of sales					7,040,266						20,545,547
Gross profit					11,846,833						37,808,237
Operating expenses					11,531,389						33,742,351
Income (loss) from operations					315,444						4,065,886
Other (income) expense [Abstract]
Interest expense					80,710						223,534
Other, net					(40,846)						(126,459)
Total other (income) expense					39,864						97,075
Income (loss) before income taxes					275,580						3,968,811
Provision (benefit) for income taxes					397,114						1,376,634
Net income (loss)					(121,534)						2,592,177
Foreign currency translation adjustments, net of tax					118,165						(154,642)
Comprehensive income (loss)					$ (3,369)						$ 2,437,535
Net income (loss) per common share [Abstract]
Basic (in dollars per share)					$ (0.01)						$ 0.28
Diluted (in dollars per share)					$ (0.01)						$ 0.28
Weighted average number of shares outstanding [Abstract]
Basic (in shares)					9,154,209						9,199,173
Diluted (in shares)					9,155,031						9,199,959
Adjustments [Member]
Income Statement [Abstract]
Net sales					$ (8,836)						$ 212,279
Cost of sales					(57,886)						1,202,081
Gross profit					49,050						(989,802)
Operating expenses					(535,400)						(1,460,053)
Income (loss) from operations					584,450						470,251
Other (income) expense [Abstract]
Interest expense					0						0
Other, net					0						(199,607)
Total other (income) expense					0						(199,607)
Income (loss) before income taxes					584,450						669,858
Provision (benefit) for income taxes					(145,785)						(21,065)
Net income (loss)					730,235						690,923
Foreign currency translation adjustments, net of tax					(29,541)						(100,500)
Comprehensive income (loss)					$ 700,694						$ 590,423
Net income (loss) per common share [Abstract]
Basic (in dollars per share)					$ 0.08						$ 0.08
Diluted (in dollars per share)					$ 0.08						$ 0.08
Weighted average number of shares outstanding [Abstract]
Basic (in shares)					9,154,215						9,199,173
Diluted (in shares)					9,160,022						9,201,577

[1] As described in Note 2 to these Consolidated Financial Statements, we have restated the Consolidated Financial Statements.

[2] For the three and nine-months ended September 30, 2019, there were 2,704 and 5,200 shares, respectively, excluded from the diluted EPS calculation because the impact of their assumed vesting would be anti-dilutive due to a net loss in those periods.