Consolidated Statement of Stockholders' Equity - USD ($)	Total	Common Stock [Member]	Additional Paid In Capital [Member]	Retained Earnings [Member]
Balances at Dec. 31, 2012	$ 14,725,000	$ 2,000	$ 15,409,000	$ (686,000)
Increase (Decrease) in Stockholders' Equity
Net loss	(698,000)	0	0	(698,000)
Cash dividend declared	(4,662,000)	0	(4,662,000)	0
Stock Issued During Period, Value, New Issues	(35,400,000)	23,000	35,377,000	0
Shares repurchased and retired, cost	0
Balances at Dec. 31, 2013	44,765,000	33,000	46,116,000	(1,384,000)
Increase (Decrease) in Stockholders' Equity
Net loss	24,519,000	0	0	24,519,000
Cash dividend declared	(22,643,000)	0	0	(22,643,000)
Stock Issued During Period, Value, New Issues	(171,295,000)	134,000	171,161,000	0
StockIssuedDuringPeriodValueStockDividend	0	8,000	(8,000)	0
Issuance of common shares pursuant to equity compensation plan	77,000	0	77,000	0
Amortization of equity plan compensation	65,000	0	65,000	0
Shares repurchased and retired, cost	0
Balances at Dec. 31, 2014	218,078,000	167,000	217,419,000	492,000
Increase (Decrease) in Stockholders' Equity
Net loss	1,071,000	0	0	1,071,000
Cash dividend declared	(38,748,000)	0	(37,185,000)	(1,563,000)
Stock Issued During Period, Value, New Issues	(83,275,000)	62,000	83,213,000	0
Issuance of common shares pursuant to equity compensation plan	287,000	0	287,000	0
Amortization of equity plan compensation	144,000	0	144,000	0
Shares repurchased and retired, cost	(10,852,000)	(12,000)	(10,840,000)	0
Balances at Dec. 31, 2015	$ 253,255,000	$ 217,000	$ 253,038,000	$ 0