Earnings (Loss) Per Common Share (Details) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		18 Months Ended
	Jun. 30, 2017 USD ($) $ / shares shares	Jun. 30, 2016 USD ($) $ / shares shares	Jun. 30, 2017 USD ($) item $ / shares shares	Jun. 30, 2016 USD ($) $ / shares shares	Jun. 30, 2017 shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of classes of common stock outstanding | item			2
Earnings Per Share, Basic [Abstract]
Income (loss) available to common shareholders (numerator) | $	$ 3,007	$ 1,696	$ 4,819	$ 3,551
Average shares (denominator) (in shares)	30,133,000		30,128,000	30,073,000
Per share Amount (in dollars per share) | $ / shares	$ 0.10		$ 0.16	$ 0.12
Earnings Per Share, Diluted [Abstract]
Income (loss) available to common shareholders (numerator) | $	$ 3,007	$ 1,696	$ 4,819	$ 3,551
Average shares (denominator) (in shares)	30,237,000	30,170,000	30,230,000	30,141,000
Per share Amount (in dollars per share) | $ / shares	$ 0.10	$ 0.06	$ 0.16	$ 0.12
Basic and Diluted EPS [Abstract]
Income (loss) available to common shareholders (numerator) | $	$ 3,007	$ 1,696	$ 4,819	$ 3,551
Average shares (denominator) (in shares)		30,084,000
Net Income - Basic and Diluted | $ / shares	$ 0.10	$ 0.06	$ 0.16	$ 0.12
Employee Stock Option
Basic and Diluted EPS [Abstract]
Number of antidilutive common share (in shares)	58,139	68,139	58,139	68,139
Warrant To Purchase Class A Common Stock [Member]
Basic and Diluted EPS [Abstract]
Number of antidilutive common share (in shares)					1,368,040
Class B - Common stock
Basic and Diluted EPS [Abstract]
Number of shares received after conversion, per share			1.15