Consolidated Statements of Cash Flows (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 7,265,717	$ 5,596,070	$ 4,752,601
Income (loss) from discontinued operations			(1,368)
	7,265,717	5,596,070	4,753,969
Adjustments to reconcile net income to net cash provided by operating activities -
Depreciation and amortization	1,194,612	1,068,226	1,016,561
Loss on disposal or abandonment of assets	109,222	21,092	84,168
Non-cash stock-based compensation	11,686	10,000	33,156
Deferred income taxes	445,977	(120,531)	256,544
Other	(261,908)	(15,227)	(106,345)
Net changes in assets and liabilities, net of effect of business acquisitions:
Accounts receivable-trade	60,367	505,807	(74,940)
Inventory	(438,046)	(5,922,533)	295,777
Prepaid expenses	(833,181)	(36,728)	243,181
Other current assets	(325,143)	55,274	(135,439)
Accounts payable-trade	272,010	(10,070)	374,876
Accrued expenses and other liabilities	(119,916)	1,287,607	(252,045)
Income taxes	158,493	(525,192)	84,216
Total adjustments	274,173	(3,682,275)	1,819,710
Net cash provided by continuing operating activities	7,539,890	1,913,795	6,573,679
Cash used in discontinued operating activities			(1,067)
Net cash provided by operating activities	7,539,890	1,913,795	6,572,612
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(3,770,022)	(2,686,221)	(1,100,523)
Purchases of certificates of deposit			(87,893)
Proceeds from maturities of certificates of deposit		423,893	1,285,593
Proceeds from sale of assets	5,343	1,230	26,263
Decrease (increase) in other assets	(5,264)	4,545	(21,707)
Net cash provided by (used in) investing activities	(3,769,943)	(2,256,553)	101,733
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments on notes payable and long-term debt	(506,250)	(202,500)	(202,500)
Payment of cash dividend		(2,536,131)
Proceeds from issuance of common stock	113,800	20,980
Net cash used in financing activities	(392,450)	(2,717,651)	(202,500)
NET INCREASE (DECREASE) IN CASH	3,377,497	(3,060,409)	6,471,845
CASH, beginning of period	7,705,182	10,765,591	4,293,746
CASH, end of period	11,082,679	7,705,182	10,765,591
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Interest paid during the period	206,763	240,934	248,576
Income tax paid during the period, net of (refunds)	$ 3,348,676	$ 4,004,510	$ 2,437,701