Significant Accounting Policies - EPS (Details) - $ / shares		3 Months Ended
	Mar. 20, 2017	Mar. 31, 2017	Mar. 31, 2016	Feb. 28, 2017	Dec. 31, 2016
Schedule of reconciliation of shares used to calculate basic and diluted earnings per share
Weighted average shares outstanding used to compute basic earnings per share		10,630,000	10,596,000
Incremental shares issuable upon the assumed exercise of stock options		35,000
Unvested restricted stock		456,000	186,000
Shares used to compute diluted earnings per share		11,121,000	10,782,000
Common stock, shares authorized		20,000,000			20,000,000
Common stock, par value		$ 0.01			$ 0.01
Common stock, shares issued		11,159,884			11,093,489
Common stock, shares outstanding		11,159,884			11,093,489
Preferred stock, shares authorized		8,000,000			8,000,000
Preferred stock, shares issued		0			0
Preferred stock, shares outstanding		0			0
Dividends declared, per share				$ 0.25
Dividends paid, per share	$ 0.25