CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Net cash provided by (used in) operating activities	$ 5,448,496	$ 5,097,981
Cash flows from investing activities
Additions to property, plant and equipment and construction in progress	(1,918,541)	(1,629,001)
Proceeds from sale of equipment	5,760	0
Distribution of earnings from OC-BVI	1,249,875	507,525
Collections on loans receivable	898,531	820,430
Payment for investment in land	(1,975,566)	0
Payment for NSC option agreement	0	(300,000)
Release of (restriction) on cash balances for non-revolving credit facility	0	7,500,000
Net cash provided by (used in) investing activities	(1,739,941)	6,898,954
Cash flows from financing activities
Dividends paid	(2,194,972)	(2,187,897)
Issuance (repurchase) of redeemable preferred stock, net	(4,159)	(1,729)
Proceeds received from exercise of stock options	302,807	0
Principal repayments of long term debt	(849,285)	(9,300,578)
(Principal repayment) borrowing under non-revolving credit facility	0	(7,500,000)
Net cash provided by (used in) financing activities	(2,745,609)	(18,990,204)
Net increase (decrease) in cash and cash equivalents	962,946	(6,993,269)
Cash and cash equivalents at beginning of period	33,892,655	37,624,179
Cash and cash equivalents at end of period	34,855,601	30,630,910
Interest paid in cash	202,734	442,594
Payment for investment in land
Issuance of 10,180 and 10,033, respectively, of redeemable preferred stock for services rendered	110,249	77,856
Issuance of 11,131 and 10,800, respectively, of common stock for services rendered	82,369	92,664
Dividends declared but not paid	1,101,181	1,095,883
Obligation incurred for investment in land	10,050,000	0
Transfers from inventory to property, plant and equipment	$ 181,875	$ 139,507