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RESTATEMENT OF PREVIOUSLY ISSUED CONSOLIDATED FINANCIAL STATEMENTS, Consolidated Statements of Cash Flows (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Mar. 31, 2019 | Jun. 30, 2018 | Mar. 31, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Cash flows from operating activities [Abstract] |  |  |  |  |  |  |  |  |  |
Net income (loss) | $ (875,667) | [1] | $ 1,519,811 | $ 1,157,743 | [2] | $ 1,516,656 |  | $ 644,144 | $ 2,674,399 | [2]
Adjustments to reconcile net income to net cash provided by operating activities [Abstract] |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  | 1,035,003 | 880,094 | [2]
(Gain) loss on disposal of assets |  |  |  |  |  |  |  | (34,737) | 4,556 | [2]
Stock-based compensation |  |  |  |  |  |  |  | 377,761 | 52,688 | [2]
Deferred income taxes |  |  |  |  |  |  |  | 624,445 | (154,643) | [2]
Exchange (gain) loss |  |  |  |  |  |  |  | 133,525 | (215,866) | [2]
Changes in operating assets and liabilities [Abstract] |  |  |  |  |  |  |  |  |  |
Accounts receivable-trade |  |  |  |  |  |  |  | (44,689) | (22,534) | [2]
Inventory |  |  |  |  |  |  |  | 7,182,787 | (688,434) | [2]
Prepaid expenses |  |  |  |  |  |  |  | 469,347 | 165,857 | [2]
Other current assets |  |  |  |  |  |  |  | 26,063 | 0 | [2]
Accounts payable-trade |  |  |  |  |  |  |  | (675,164) | 721,717 | [2]
Accrued expenses and other liabilities |  |  |  |  |  |  |  | (2,339,493) | (1,920,897) | [2]
Income taxes |  |  |  |  |  |  |  | (1,541,142) | (202,651) | [2]
Other assets |  |  |  |  |  |  |  | (216,874) | 422,302 | [2]
Total adjustments |  |  |  |  |  |  |  | 5,053,530 | (957,811) | [2]
Net cash provided by operating activities |  |  |  |  |  |  |  | 5,697,674 | 1,716,588 | [2]
Cash flows from investing activities [Abstract] |  |  |  |  |  |  |  |  |  |
Purchase of property and equipment |  |  |  |  |  |  |  | (136,424) | (421,861) | [2]
Proceeds from sales of assets |  |  |  |  |  |  |  | 85,314 | 7,028 | [2]
Net cash used in investing activities |  |  |  |  |  |  |  | (9,049,970) | (414,833) | [2]
Cash flows from financing activities [Abstract] |  |  |  |  |  |  |  |  |  |
Proceeds from long-term debt |  |  |  |  |  |  |  | 0 | 982,938 | [2]
Repurchase of treasury stock |  |  |  |  |  |  |  | (724,107) | (995,186) | [2]
Net cash used in financing activities |  |  |  |  |  |  |  | (9,692,125) | (12,248) | [2]
Effect of exchange rate changes on cash and cash equivalents |  |  |  |  |  |  |  | 248,013 | (417,036) | [2]
Net (decrease) increase in cash and cash equivalents |  |  |  |  |  |  |  | (12,796,408) | 872,471 | [2]
Cash and cash equivalents, beginning of period |  |  | $ 24,070,351 |  |  | 18,082,857 | [2] | 24,070,351 | 18,082,857 | [2]
Cash and cash equivalents, end of period | $ 11,273,943 |  |  | 18,955,328 | [2] |  |  | $ 11,273,943 | 18,955,328 | [2]
As Reported [Member] |  |  |  |  |  |  |  |  |  |
Cash flows from operating activities [Abstract] |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  | 1,440,092 |  |  |  |  | 2,713,711 |
Adjustments to reconcile net income to net cash provided by operating activities [Abstract] |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 878,955 |
(Gain) loss on disposal of assets |  |  |  |  |  |  |  |  | 4,556 |
Stock-based compensation |  |  |  |  |  |  |  |  | 52,688 |
Deferred income taxes |  |  |  |  |  |  |  |  | (96,057) |
Exchange (gain) loss |  |  |  |  |  |  |  |  | (268,321) |
Changes in operating assets and liabilities [Abstract] |  |  |  |  |  |  |  |  |  |
Accounts receivable-trade |  |  |  |  |  |  |  |  | (35,043) |
Inventory |  |  |  |  |  |  |  |  | (709,072) |
Prepaid expenses |  |  |  |  |  |  |  |  | 98,203 |
Other current assets |  |  |  |  |  |  |  |  | 113,570 |
Accounts payable-trade |  |  |  |  |  |  |  |  | (189,928) |
Accrued expenses and other liabilities |  |  |  |  |  |  |  |  | (1,258,506) |
Income taxes |  |  |  |  |  |  |  |  | (255,695) |
Other assets |  |  |  |  |  |  |  |  | (3,910) |
Total adjustments |  |  |  |  |  |  |  |  | (1,668,560) |
Net cash provided by operating activities |  |  |  |  |  |  |  |  | 1,045,151 |
Cash flows from investing activities [Abstract] |  |  |  |  |  |  |  |  |  |
Purchase of property and equipment |  |  |  |  |  |  |  |  | (421,861) |
Proceeds from sales of assets |  |  |  |  |  |  |  |  | 7,028 |
Net cash used in investing activities |  |  |  |  |  |  |  |  | (414,833) |
Cash flows from financing activities [Abstract] |  |  |  |  |  |  |  |  |  |
Proceeds from long-term debt |  |  |  |  |  |  |  |  | 982,938 |
Repurchase of treasury stock |  |  |  |  |  |  |  |  | (995,186) |
Net cash used in financing activities |  |  |  |  |  |  |  |  | (12,248) |
Effect of exchange rate changes on cash and cash equivalents |  |  |  |  |  |  |  |  | 0 |
Net (decrease) increase in cash and cash equivalents |  |  |  |  |  |  |  |  | 618,070 |
Cash and cash equivalents, beginning of period |  |  |  |  |  | 18,337,258 |  |  | 18,337,258 |
Cash and cash equivalents, end of period |  |  |  | 18,955,328 |  |  |  |  | 18,955,328 |
Adjustments [Member] |  |  |  |  |  |  |  |  |  |
Cash flows from operating activities [Abstract] |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  | (282,349) |  |  |  |  | (39,312) |
Adjustments to reconcile net income to net cash provided by operating activities [Abstract] |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 1,139 |
(Gain) loss on disposal of assets |  |  |  |  |  |  |  |  | 0 |
Stock-based compensation |  |  |  |  |  |  |  |  | 0 |
Deferred income taxes |  |  |  |  |  |  |  |  | (58,586) |
Exchange (gain) loss |  |  |  |  |  |  |  |  | 52,455 |
Changes in operating assets and liabilities [Abstract] |  |  |  |  |  |  |  |  |  |
Accounts receivable-trade |  |  |  |  |  |  |  |  | 12,509 |
Inventory |  |  |  |  |  |  |  |  | 20,638 |
Prepaid expenses |  |  |  |  |  |  |  |  | 67,654 |
Other current assets |  |  |  |  |  |  |  |  | (113,570) |
Accounts payable-trade |  |  |  |  |  |  |  |  | 911,645 |
Accrued expenses and other liabilities |  |  |  |  |  |  |  |  | (662,391) |
Income taxes |  |  |  |  |  |  |  |  | 53,044 |
Other assets |  |  |  |  |  |  |  |  | 426,212 |
Total adjustments |  |  |  |  |  |  |  |  | 710,749 |
Net cash provided by operating activities |  |  |  |  |  |  |  |  | 671,437 |
Cash flows from investing activities [Abstract] |  |  |  |  |  |  |  |  |  |
Purchase of property and equipment |  |  |  |  |  |  |  |  | 0 |
Proceeds from sales of assets |  |  |  |  |  |  |  |  | 0 |
Net cash used in investing activities |  |  |  |  |  |  |  |  | 0 |
Cash flows from financing activities [Abstract] |  |  |  |  |  |  |  |  |  |
Proceeds from long-term debt |  |  |  |  |  |  |  |  | 0 |
Repurchase of treasury stock |  |  |  |  |  |  |  |  | 0 |
Net cash used in financing activities |  |  |  |  |  |  |  |  | 0 |
Effect of exchange rate changes on cash and cash equivalents |  |  |  |  |  |  |  |  | (417,036) |
Net (decrease) increase in cash and cash equivalents |  |  |  |  |  |  |  |  | 254,401 |
Cash and cash equivalents, beginning of period |  |  |  |  |  | $ (254,401) |  |  | (254,401) |
Cash and cash equivalents, end of period |  |  |  | $ 0 |  |  |  |  | $ 0 |
[1] | 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.
[2] | As described in Note 2 to these Consolidated Financial Statements, we have restated the Consolidated Financial Statements.

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