Consolidated Statements of Comprehensive Income (Loss) - USD ($)	3 Months Ended						6 Months Ended
	Jun. 30, 2019		Mar. 31, 2019	Jun. 30, 2018	[1]	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	[1]
Consolidated Statements of Comprehensive Income (Loss) [Abstract]
Net sales	$ 17,196,815			$ 19,187,222			$ 38,138,137	$ 39,687,800
Cost of sales	7,826,369			6,953,730			16,523,021	14,765,248
Gross profit	9,370,446			12,233,492			21,615,116	24,922,552
Operating expenses	10,617,824			10,651,386			20,649,477	21,286,309
Income (loss) from operations	(1,247,378)			1,582,106			965,639	3,636,243
Other (income) expense:
Interest expense	0			78,182			32,383	142,824
Other, net	(54,125)			(131,842)			55,493	(285,220)
Total other (income) expense	(54,125)			(53,660)			87,876	(142,396)
Income (loss) before income taxes	(1,193,253)			1,635,766			877,763	3,778,639
Provision (benefit) for income taxes	(317,586)			478,023			233,619	1,104,240
Net income (loss)	(875,667)	[2]	$ 1,519,811	1,157,743		$ 1,516,656	644,144	2,674,399
Foreign currency translation adjustments, net of tax	87,333		$ 314,493	(284,774)		$ (58,992)	401,826	(343,766)
Comprehensive income (loss)	$ (788,334)			$ 872,969			$ 1,045,970	$ 2,330,633
Net income (loss) per common share:
Basic (in dollars per share)	$ (0.10)			$ 0.13			$ 0.07	$ 0.29
Diluted (in dollars per share)	$ (0.10)			$ 0.13			$ 0.07	$ 0.29
Weighted average number of shares outstanding:
Basic (in shares)	8,933,648	[2]		9,180,076			8,971,490	9,222,028
Diluted (in shares)	8,933,648	[2]		9,182,527			8,975,000	9,223,086

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

[2] For the three months ended June 30, 2019, there were 2,290 shares 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.