Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands		Total		Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Retained Earnings [Member]
Beginning balance at Dec. 31, 2014	[1]	$ 32,820		$ 71	$ 4,410	$ (23)	$ 28,362
Beginning balance, shares at Dec. 31, 2014	[1]			7,126
Common stock issued on exercise of options and vesting of restricted stock units		690		$ 1	689	0	0
Common stock issued on exercise of options and vesting of restricted stock units, shares				50
Common stock repurchased on vesting of restricted stock units		(65)		$ 0	(65)	0	0
Common stock repurchased on vesting of restricted stock units, shares				(1)
Share based compensation expense		1,069		$ 0	1,069	0	0
Excess tax benefits from share-based compensation		70		0	70	0	0
Cash dividends on common stock		(3,141)		0	0	0	(3,141)
Unrealized holding gain on marketable securities, net of tax		27	[2]	0	0	27	0
Net income		3,074	[2]	0	0	0	3,074
Ending balance at Jun. 30, 2015	[1]	34,544		$ 72	6,173	4	28,295
Ending balance, shares at Jun. 30, 2015	[1]			7,175
Beginning balance at Dec. 31, 2015		54,551		$ 72	6,964	(31)	47,546
Beginning balance, shares at Dec. 31, 2015				7,203
Common stock issued on exercise of options and vesting of restricted stock units		72		$ 0	72	0	0
Common stock issued on exercise of options and vesting of restricted stock units, shares				8
Common stock repurchased on vesting of restricted stock units		(40)		$ 0	(40)	0	0
Common stock repurchased on vesting of restricted stock units, shares				(1)
Share based compensation expense		1,040		$ 0	1,040	0	0
Excess tax benefits from share-based compensation		265		0	265	0	0
Cash dividends on common stock		(3,173)		0	0	0	(3,173)
Unrealized holding gain on marketable securities, net of tax		54		0	0	54	0
Net income		519		0	0	0	519
Ending balance at Jun. 30, 2016		$ 53,288		$ 72	$ 8,301	$ 23	$ 44,892
Ending balance, shares at Jun. 30, 2016				7,210

[1] Restatement impacts to the Condensed Consolidated Statements of Stockholders' Equity include the first six months of 2015 adjustment to net income as well as previous period cumulative adjustments to beginning retained earnings. See Note 2. Restatement of Previously Issued Condensed Consolidated Financial Statements.

[2] See Note 2. Restatement of Previously Issued Condensed Consolidated Financial Statements