Consolidated Statements of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	[1]
Cash flows from operating activities:
Net income	$ 644,144	$ 2,674,399
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	1,035,003	880,094
Operating lease asset amortization	1,734,140	0
(Gain) loss on disposal of assets	(34,737)	4,556
Stock-based compensation	377,761	52,688
Deferred income taxes	624,445	(154,643)
Exchange (gain) loss	133,525	(215,866)
Changes in operating assets and liabilities:
Accounts receivable-trade	(44,689)	(22,534)
Inventory	7,182,787	(688,434)
Prepaid expenses	469,347	165,857
Other current assets	26,063	0
Accounts payable-trade	(675,164)	721,717
Accrued expenses and other liabilities	(2,339,493)	(1,920,897)
Income taxes, net	(1,541,142)	(202,651)
Other assets	(216,874)	422,302
Operating lease liability	(1,677,442)	0
Total adjustments	5,053,530	(957,811)
Net cash provided by operating activities	5,697,674	1,716,588
Cash flows from investing activities:
Purchase of property and equipment	(136,424)	(421,861)
Purchase of short-term investments	(10,678,860)	0
Proceeds from sales of short-term investments	1,680,000	0
Proceeds from sales of assets	85,314	7,028
Net cash used in investing activities	(9,049,970)	(414,833)
Cash flows from financing activities:
Proceeds from long-term debt	0	982,938
Payments on long-term debt	(8,968,018)	0
Repurchase of treasury stock	(724,107)	(995,186)
Net cash used in financing activities	(9,692,125)	(12,248)
Effect of exchange rate changes on cash and cash equivalents	248,013	(417,036)
Net (decrease) increase in cash and cash equivalents	(12,796,408)	872,471
Cash and cash equivalents, beginning of period	24,070,351	18,082,857
Cash and cash equivalents, end of period	$ 11,273,943	$ 18,955,328

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