Summary of Significant Accounting Policies (Details 2) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Net earnings per common share - basic:
Net earnings	$ 491,000	$ 1,817,000	$ 208,000	$ 4,188,000
Allocation to nonvested restricted stock awards	11,000	42,000	5,000	97,000
Net earnings available to common stockholders	480,000	1,775,000	203,000	4,091,000
Weighted-average shares outstanding	31,849,000	31,745,000	31,848,000	31,744,000
Net earnings per common share - basic (in dollars per share)	$ 0.02	$ 0.06	$ 0.01	$ 0.13
Net earnings per common share - diluted:
Net earnings	491,000	1,817,000	208,000	4,188,000
Allocation to nonvested restricted stock awards	11,000	42,000	5,000	97,000
Net earnings available to common stockholders	480,000	1,775,000	203,000	4,091,000
Weighted-average shares outstanding	31,849,000	31,745,000	31,848,000	31,744,000
Weighted-average shares and dilutive shares outstanding	31,849,000	31,745,000	31,848,000	31,744,000
Net earnings per common share - diluted (in dollars per share)	$ 0.02	$ 0.06	$ 0.01	$ 0.13
Anti-dilutive securities not included in the computation of diluted EPS (in shares)	0	0	0	0
Accounting for stock-based compensation
Stock-based compensation expense for restricted stock awards and stock options	171,000	193,000	367,000	408,000
Income tax benefit (expense) related to restricted stock awards	$ 69,000	$ 78,000	$ (59,000)	$ (98,000)