Stockholders' Equity (Details 3) - USD ($)		6 Months Ended
	Jul. 22, 2015	Jun. 30, 2015	Jun. 30, 2014	Oct. 23, 2002
Number of shares of outstanding common stock authorized to be repurchased				3,000,000
Purchases made pursuant to repurchase authorization (in shares)		0	0
Number of remaining shares of common stock authorized to be repurchased		1,653,333
Number of common stock shares purchased and retired		73,453	66,829
Amount of common stock purchased and retired		$ 65,000	$ 104,000
Common stock. | Maximum | Subsequent Event
Average closing price (in dollars per share)	$1.00
Consecutive trading days	30 days