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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Net cash provided by (used in) operating activities $ 8,443,606 $ 14,633,067
Cash flows from investing activities    
Additions to property, plant and equipment and construction in progress (3,057,839) (10,245,978)
Distribution of earnings from OC-BVI 507,525 202,631
Collections of loans receivable 1,283,518 1,290,265
Collections of loan receivable from OC-BVI 0 1,450,000
Payment for NSC option agreement (300,000) 0
Release of restriction on cash balances for non-revolving credit facility 7,500,000 0
Net cash provided by (used in) investing activities 5,933,204 (7,303,082)
Cash flows from financing activities    
Dividends paid (3,283,164) (3,275,403)
Issuance (repurchase) of redeemable preferred stock, net 1,154 1,542
Principal repayments of long term debt (9,709,821) (1,140,436)
Capital contribution from non-controlling interest 135,000 0
Principal repayment of non-revolving credit facility (7,500,000) 0
Net cash provided by (used in) financing activities (20,356,831) (4,414,297)
Net increase (decrease) in cash and cash equivalents (5,980,021) 2,915,688
Cash and cash equivalents at beginning of period 37,624,179 46,130,237
Cash and cash equivalents at end of period 31,644,158 49,045,925
Interest paid in cash, net of capitalized interest of $176,785 in 2011 559,361 738,934
Non-cash investing and financing activities    
Issuance of 10,033 shares and 7,455 shares, respectively, of redeemable preferred stock for services rendered 77,856 65,902
Conversion of 2,629 shares and 2,145 shares, respectively, of redeemable preferred stock to common stock 1,577 1,287
Issuance of common stock to executive management for bonus payable 92,664 28,025
Dividends declared but not paid $ 1,095,929 $ 1,093,763