CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (USD $)	Total	Common Class A [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2013	$ 38,730,000	$ 4,038,000	$ 11,798,000	$ 25,871,000	$ (2,977,000)
Balance (in shares) at Dec. 31, 2013		4,038,000			(344,000)
Net income	462,000	0	0	462,000	0
Exercise of stock options	1,000	2,000	5,000	0	(6,000)
Exercise of stock options (in shares)		2,000			(1,000)
Restricted stock	7,000	0	7,000	0	0
Restricted stock (in shares)		0			0
Stock-based compensation	90,000	0	90,000	0	0
Balance at Mar. 31, 2014	$ 39,290,000	$ 4,040,000	$ 11,900,000	$ 26,333,000	$ (2,983,000)
Balance (in shares) at Mar. 31, 2014		4,040,000			(345,000)