CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY AND COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	Comprehensive Income [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2011		$ 79	$ 50,940	$ 877	$ 6,248	$ 58,144
Increase (Decrease) in Stockholders' Equity
Net income	4,313				4,313	4,313
Cash dividends					(159)	(159)
Treasury stock acquired						0
Stock options exercised		1	128			129
Shares based compensation			288			288
Net unrealized change in investments, net of tax effect	3,190			3,190		3,190
Comprehensive income	7,503
Balance at Dec. 31, 2012		80	51,356	4,067	10,402	65,905
Increase (Decrease) in Stockholders' Equity
Net income	12,727				12,727	12,727
Cash dividends					(1,233)	(1,233)
Stock issued for capital raised		28	27,851			27,879
Treasury stock acquired						0
Stock options exercised		1	857			858
Shares based compensation			461			461
Net unrealized change in investments, net of tax effect	1,897			1,897		1,897
Comprehensive income	14,624
Balance at Dec. 31, 2013		109	80,525	5,964	21,896	108,494
Increase (Decrease) in Stockholders' Equity
Net income	37,199				37,199	37,199
Cash dividends					(1,672)	(1,672)
Stock issued for capital raised		23	43,086			43,109
Treasury stock acquired						0
Stock options exercised		4	1,551			1,555
Shares based compensation			2,140			2,140
Net unrealized change in investments, net of tax effect	1,754			1,754		1,754
Comprehensive income	38,953
Balance at Dec. 31, 2014		$ 136	$ 127,302	$ 7,718	$ 57,423	$ 192,579