Consolidated Balance Sheets (Current Period Unaudited) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 19,621,006	$ 18,119,968
Accounts receivable, net	12,973,504	9,303,958
Prepaid expenses	4,120,630	3,544,810
Inventories	11,815,111	12,083,125
Investment	33,939,835	197,509
Fair value above contract value of time charters acquired	(657,346)	549,965
Total current assets	82,470,086	43,799,335
Noncurrent assets:
Vessels and vessel improvements, at cost, net of accumulated depreciation of $351,835,709 and $314,700,681, respectively	1,677,264,725	1,714,307,653
Other fixed assets, net of accumulated amortization of $606,606 and $515,896, respectively	360,793	447,716
Restricted cash	66,243	276,056
Deferred drydock costs	2,699,884	2,132,379
Deferred financing costs	20,946,561	25,095,469
Fair value above contract value of time charters acquired		2,491,530
Other assets	844,266	594,012
Total noncurrent assets	1,702,182,472	1,745,344,815
Total assets	1,784,652,558	1,789,144,150
Current liabilities:
Accounts payable	8,236,022	10,235,007
Accrued interest	996,242	2,430,751
Other accrued liabilities	10,791,942	14,330,141
Deferred revenue and fair value below contract value of time charters acquired		3,237,694
Unearned charter hire revenue	3,904,870	3,755,166
Fair value of derivative instruments	657,346	2,243,833
Total current liabilities	24,586,422	36,232,592
Long-term debt	1,129,478,741	1,129,478,741
Payment-in-kind loans	29,853,031	15,387,468
Deferred revenue and fair value below contract value of time charters acquired		13,850,772
Total noncurrent liabilities	1,159,331,772	1,158,716,981
Total liabilities	1,183,918,194	1,194,949,573
Commitment and contingencies	0	0
Stockholders' equity:
Preferred stock, $.01 par value, 25,000,000 shares authorized, none issued	0	0
Common stock, $.01 par value, 100,000,000 shares authorized, 16,658,417 and 16,638,092 shares issued and outstanding, respectively	166,581	166,378
Additional paid-in capital	765,999,866	762,313,030
Retained earnings (net of historical dividends declared of $262,118,388)	(166,940,186)	(165,275,389)
Accumulated other comprehensive income (loss)	1,508,103	(3,009,442)
Total stockholders' equity	600,734,364	594,194,577
Total liabilities and stockholders' equity	$ 1,784,652,558	$ 1,789,144,150