Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 1,520,997	$ 1,444,407
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	414,228	383,936
(Gain) / loss on disposal or abandonment of assets	(12,023)	5,804
Non-cash stock-based compensation	43,762	29,064
Deferred income taxes	31,717	67,831
Foreign currency translation	614,366	(585,107)
Net changes in assets and liabilities:
Accounts receivable-trade, net	(129,374)	(39,095)
Inventory	(47,763)	2,467,610
Prepaid expenses	(112,282)	(123,481)
Other current assets	(76,076)	43,888
Accounts payable-trade	(63,065)	486,852
Accrued expenses and other liabilities	(1,471,776)	(1,097,188)
Income taxes payable	360,847	423,403
Total adjustments	(447,439)	2,063,517
Net cash provided by operating activities	1,073,558	3,507,924
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(606,932)	$ (677,444)
Proceeds from sale of assets	22,625
Increase (decrease) in other assets	(154)	$ 2,344
Net cash used in investing activities	$ (584,461)	(675,100)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net decrease in revolving credit loans		$ (3,500,000)
Proceeds from notes payable and long term debt	$ 2,870,000
Payments on notes payable and long-term debt		$ (50,625)
Payments on capital lease obligations	$ (6,710)
Repurchase of common stock (treasury stock)	$ (2,870,740)
Proceeds from issuance of common stock		$ 9,920
Net cash used in financing activities	$ (7,450)	(3,540,705)
NET INCREASE (DECREASE) IN CASH	481,647	(707,881)
CASH, beginning of period	10,962,615	10,636,530
CASH, end of period	11,444,262	9,928,649
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Interest paid during the period	23,429	44,163
Income tax paid during the period, net of (refunds)	$ 457,478	$ 379,690